./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC --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 592117a566b45deb7ab0407540eecbf2be0f732724f0529483f85e7a6864867a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 23:31:46,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 23:31:46,205 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 23:31:46,211 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 23:31:46,211 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 23:31:46,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 23:31:46,256 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 23:31:46,256 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 23:31:46,256 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 23:31:46,256 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 23:31:46,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 23:31:46,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 23:31:46,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 23:31:46,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 23:31:46,257 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 23:31:46,257 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 23:31:46,257 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 23:31:46,258 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 23:31:46,258 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 23:31:46,258 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 23:31:46,259 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 23:31:46,259 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 23:31:46,259 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 23:31:46,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 23:31:46,259 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 23:31:46,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 23:31:46,259 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 23:31:46,259 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 23:31:46,259 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 23:31:46,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:31:46,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:31:46,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:31:46,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:31:46,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 23:31:46,260 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 23:31:46,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 23:31:46,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 23:31:46,260 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:31:46,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 23:31:46,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 23:31:46,261 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 23:31:46,261 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 23:31:46,261 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 23:31:46,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 23:31:46,261 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 23:31:46,263 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 23:31:46,263 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 23:31:46,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 23:31:46,263 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC 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 -> 592117a566b45deb7ab0407540eecbf2be0f732724f0529483f85e7a6864867a [2024-11-23 23:31:46,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 23:31:46,604 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 23:31:46,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 23:31:46,609 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 23:31:46,609 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 23:31:46,611 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2024-11-23 23:31:49,683 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/data/094164dbc/83e8e4a2c40d4ce18dcc000b8a45ef94/FLAG7f6c87d21 [2024-11-23 23:31:50,109 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 23:31:50,109 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c [2024-11-23 23:31:50,133 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/data/094164dbc/83e8e4a2c40d4ce18dcc000b8a45ef94/FLAG7f6c87d21 [2024-11-23 23:31:50,153 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/data/094164dbc/83e8e4a2c40d4ce18dcc000b8a45ef94 [2024-11-23 23:31:50,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 23:31:50,159 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 23:31:50,160 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 23:31:50,161 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 23:31:50,167 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 23:31:50,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a2dba92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50, skipping insertion in model container [2024-11-23 23:31:50,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,221 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 23:31:50,595 WARN L250 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_d3c06669-22bc-4684-93f6-9f871d709a50/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c[19185,19198] [2024-11-23 23:31:50,598 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:31:50,609 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 23:31:50,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2024-11-23 23:31:50,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [309] [2024-11-23 23:31:50,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [379] [2024-11-23 23:31:50,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [417] [2024-11-23 23:31:50,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [783] [2024-11-23 23:31:50,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [879] [2024-11-23 23:31:50,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [983] [2024-11-23 23:31:50,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1010] [2024-11-23 23:31:50,714 WARN L250 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_d3c06669-22bc-4684-93f6-9f871d709a50/sv-benchmarks/c/product-lines/minepump_spec1_product62.cil.c[19185,19198] [2024-11-23 23:31:50,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 23:31:50,751 INFO L204 MainTranslator]: Completed translation [2024-11-23 23:31:50,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50 WrapperNode [2024-11-23 23:31:50,752 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 23:31:50,755 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 23:31:50,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 23:31:50,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 23:31:50,767 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,786 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,833 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 217 [2024-11-23 23:31:50,834 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 23:31:50,835 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 23:31:50,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 23:31:50,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 23:31:50,848 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,851 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,889 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 23:31:50,892 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,893 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,898 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,904 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,912 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,917 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,921 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 23:31:50,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 23:31:50,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 23:31:50,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 23:31:50,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (1/1) ... [2024-11-23 23:31:50,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 23:31:50,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:31:50,971 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 23:31:50,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 23:31:51,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 23:31:51,012 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-23 23:31:51,012 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-23 23:31:51,012 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-23 23:31:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-23 23:31:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-23 23:31:51,013 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-23 23:31:51,013 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-23 23:31:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-23 23:31:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-23 23:31:51,014 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-23 23:31:51,014 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-23 23:31:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-23 23:31:51,015 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-23 23:31:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-23 23:31:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-23 23:31:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-23 23:31:51,016 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-23 23:31:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-23 23:31:51,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 23:31:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-23 23:31:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-23 23:31:51,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 23:31:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 23:31:51,119 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 23:31:51,122 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 23:31:51,616 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-23 23:31:51,617 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 23:31:51,639 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 23:31:51,643 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-23 23:31:51,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:31:51 BoogieIcfgContainer [2024-11-23 23:31:51,643 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 23:31:51,646 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 23:31:51,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 23:31:51,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 23:31:51,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:31:50" (1/3) ... [2024-11-23 23:31:51,656 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16163ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:31:51, skipping insertion in model container [2024-11-23 23:31:51,656 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:31:50" (2/3) ... [2024-11-23 23:31:51,657 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16163ab9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:31:51, skipping insertion in model container [2024-11-23 23:31:51,658 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:31:51" (3/3) ... [2024-11-23 23:31:51,661 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2024-11-23 23:31:51,686 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 23:31:51,688 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec1_product62.cil.c that has 11 procedures, 107 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-23 23:31:51,783 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 23:31:51,802 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7c7e6600, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 23:31:51,802 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 23:31:51,807 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 87 states have internal predecessors, (106), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-23 23:31:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-23 23:31:51,817 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:51,818 INFO L218 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] [2024-11-23 23:31:51,818 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:51,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:51,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2066471052, now seen corresponding path program 1 times [2024-11-23 23:31:51,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:51,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567887189] [2024-11-23 23:31:51,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:51,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:51,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:52,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:31:52,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:52,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567887189] [2024-11-23 23:31:52,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567887189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:52,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:31:52,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 23:31:52,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966178144] [2024-11-23 23:31:52,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:52,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 23:31:52,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:52,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 23:31:52,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 23:31:52,114 INFO L87 Difference]: Start difference. First operand has 107 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 87 states have internal predecessors, (106), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:31:52,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:52,149 INFO L93 Difference]: Finished difference Result 206 states and 279 transitions. [2024-11-23 23:31:52,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 23:31:52,151 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-23 23:31:52,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:52,163 INFO L225 Difference]: With dead ends: 206 [2024-11-23 23:31:52,164 INFO L226 Difference]: Without dead ends: 98 [2024-11-23 23:31:52,168 INFO L434 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 [2024-11-23 23:31:52,174 INFO L435 NwaCegarLoop]: 136 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:31:52,176 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:31:52,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2024-11-23 23:31:52,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2024-11-23 23:31:52,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 79 states have internal predecessors, (92), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-23 23:31:52,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 127 transitions. [2024-11-23 23:31:52,234 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 127 transitions. Word has length 23 [2024-11-23 23:31:52,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:52,235 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 127 transitions. [2024-11-23 23:31:52,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:31:52,235 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 127 transitions. [2024-11-23 23:31:52,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-23 23:31:52,237 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:52,237 INFO L218 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] [2024-11-23 23:31:52,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 23:31:52,238 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:52,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:52,239 INFO L85 PathProgramCache]: Analyzing trace with hash -996734010, now seen corresponding path program 1 times [2024-11-23 23:31:52,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:52,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600627273] [2024-11-23 23:31:52,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:52,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:52,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:31:52,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:52,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600627273] [2024-11-23 23:31:52,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600627273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:52,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:31:52,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 23:31:52,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683905589] [2024-11-23 23:31:52,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:52,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 23:31:52,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:52,431 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 23:31:52,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 23:31:52,431 INFO L87 Difference]: Start difference. First operand 98 states and 127 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:31:52,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:52,471 INFO L93 Difference]: Finished difference Result 163 states and 211 transitions. [2024-11-23 23:31:52,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 23:31:52,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2024-11-23 23:31:52,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:52,476 INFO L225 Difference]: With dead ends: 163 [2024-11-23 23:31:52,476 INFO L226 Difference]: Without dead ends: 90 [2024-11-23 23:31:52,477 INFO L434 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 [2024-11-23 23:31:52,480 INFO L435 NwaCegarLoop]: 115 mSDtfsCounter, 13 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:31:52,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 214 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:31:52,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-23 23:31:52,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-23 23:31:52,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 65 states have (on average 1.323076923076923) internal successors, (86), 74 states have internal predecessors, (86), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 23:31:52,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 116 transitions. [2024-11-23 23:31:52,520 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 116 transitions. Word has length 23 [2024-11-23 23:31:52,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:52,520 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 116 transitions. [2024-11-23 23:31:52,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:31:52,521 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 116 transitions. [2024-11-23 23:31:52,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-23 23:31:52,522 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:52,522 INFO L218 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] [2024-11-23 23:31:52,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 23:31:52,522 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:52,523 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:52,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1118023864, now seen corresponding path program 1 times [2024-11-23 23:31:52,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:52,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517167971] [2024-11-23 23:31:52,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:52,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:52,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:52,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:31:52,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:52,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517167971] [2024-11-23 23:31:52,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517167971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:52,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:31:52,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:31:52,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609235288] [2024-11-23 23:31:52,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:52,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:31:52,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:52,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:31:52,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:31:52,775 INFO L87 Difference]: Start difference. First operand 90 states and 116 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:31:53,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:53,001 INFO L93 Difference]: Finished difference Result 173 states and 226 transitions. [2024-11-23 23:31:53,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:31:53,004 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 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 28 [2024-11-23 23:31:53,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:53,005 INFO L225 Difference]: With dead ends: 173 [2024-11-23 23:31:53,006 INFO L226 Difference]: Without dead ends: 90 [2024-11-23 23:31:53,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:31:53,010 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 111 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:31:53,010 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 270 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:31:53,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2024-11-23 23:31:53,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2024-11-23 23:31:53,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 74 states have internal predecessors, (85), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-23 23:31:53,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 115 transitions. [2024-11-23 23:31:53,030 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 115 transitions. Word has length 28 [2024-11-23 23:31:53,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:53,031 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 115 transitions. [2024-11-23 23:31:53,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-23 23:31:53,031 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 115 transitions. [2024-11-23 23:31:53,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-23 23:31:53,032 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:53,032 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:53,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 23:31:53,033 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:53,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:53,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1841621657, now seen corresponding path program 1 times [2024-11-23 23:31:53,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:53,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132656362] [2024-11-23 23:31:53,036 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:53,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:53,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:53,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:31:53,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:53,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132656362] [2024-11-23 23:31:53,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132656362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:53,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:31:53,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:31:53,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60334475] [2024-11-23 23:31:53,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:53,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:31:53,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:53,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:31:53,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:31:53,254 INFO L87 Difference]: Start difference. First operand 90 states and 115 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-23 23:31:53,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:53,598 INFO L93 Difference]: Finished difference Result 258 states and 327 transitions. [2024-11-23 23:31:53,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 23:31:53,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 43 [2024-11-23 23:31:53,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:53,601 INFO L225 Difference]: With dead ends: 258 [2024-11-23 23:31:53,601 INFO L226 Difference]: Without dead ends: 175 [2024-11-23 23:31:53,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-23 23:31:53,606 INFO L435 NwaCegarLoop]: 119 mSDtfsCounter, 194 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:31:53,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 288 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:31:53,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-23 23:31:53,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 169. [2024-11-23 23:31:53,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 123 states have (on average 1.2357723577235773) internal successors, (152), 132 states have internal predecessors, (152), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-23 23:31:53,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2024-11-23 23:31:53,652 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 43 [2024-11-23 23:31:53,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:53,652 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2024-11-23 23:31:53,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-23 23:31:53,654 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2024-11-23 23:31:53,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-23 23:31:53,655 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:53,655 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:53,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-23 23:31:53,655 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:53,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:53,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1226083759, now seen corresponding path program 1 times [2024-11-23 23:31:53,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:53,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454299237] [2024-11-23 23:31:53,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:53,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:53,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 23:31:53,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:53,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454299237] [2024-11-23 23:31:53,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454299237] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:53,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:31:53,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-23 23:31:53,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076969530] [2024-11-23 23:31:53,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:53,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 23:31:53,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:53,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 23:31:53,875 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-23 23:31:53,876 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:31:54,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:54,195 INFO L93 Difference]: Finished difference Result 173 states and 205 transitions. [2024-11-23 23:31:54,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-23 23:31:54,196 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 49 [2024-11-23 23:31:54,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:54,198 INFO L225 Difference]: With dead ends: 173 [2024-11-23 23:31:54,198 INFO L226 Difference]: Without dead ends: 171 [2024-11-23 23:31:54,199 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-23 23:31:54,200 INFO L435 NwaCegarLoop]: 95 mSDtfsCounter, 123 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-23 23:31:54,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 377 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-23 23:31:54,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-23 23:31:54,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 169. [2024-11-23 23:31:54,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 123 states have (on average 1.2195121951219512) internal successors, (150), 132 states have internal predecessors, (150), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-23 23:31:54,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 201 transitions. [2024-11-23 23:31:54,226 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 201 transitions. Word has length 49 [2024-11-23 23:31:54,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:54,229 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 201 transitions. [2024-11-23 23:31:54,229 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-23 23:31:54,229 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 201 transitions. [2024-11-23 23:31:54,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-23 23:31:54,231 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:54,231 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:54,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 23:31:54,234 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:54,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:54,235 INFO L85 PathProgramCache]: Analyzing trace with hash -2020690309, now seen corresponding path program 1 times [2024-11-23 23:31:54,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:54,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625828579] [2024-11-23 23:31:54,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:54,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:54,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:31:54,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:54,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625828579] [2024-11-23 23:31:54,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625828579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:54,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:31:54,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-23 23:31:54,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857775167] [2024-11-23 23:31:54,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:54,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-23 23:31:54,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:54,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-23 23:31:54,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:31:54,366 INFO L87 Difference]: Start difference. First operand 169 states and 201 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:31:54,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:54,415 INFO L93 Difference]: Finished difference Result 334 states and 407 transitions. [2024-11-23 23:31:54,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-23 23:31:54,416 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-11-23 23:31:54,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:54,418 INFO L225 Difference]: With dead ends: 334 [2024-11-23 23:31:54,418 INFO L226 Difference]: Without dead ends: 172 [2024-11-23 23:31:54,419 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-23 23:31:54,420 INFO L435 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 23:31:54,420 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 442 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:31:54,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2024-11-23 23:31:54,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 172. [2024-11-23 23:31:54,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 126 states have (on average 1.2142857142857142) internal successors, (153), 135 states have internal predecessors, (153), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-23 23:31:54,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 204 transitions. [2024-11-23 23:31:54,455 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 204 transitions. Word has length 59 [2024-11-23 23:31:54,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:54,455 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 204 transitions. [2024-11-23 23:31:54,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:31:54,456 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 204 transitions. [2024-11-23 23:31:54,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-23 23:31:54,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:54,457 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:54,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-23 23:31:54,457 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:54,458 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:54,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1745930695, now seen corresponding path program 1 times [2024-11-23 23:31:54,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:54,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625493084] [2024-11-23 23:31:54,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:54,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:54,594 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:31:54,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:54,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625493084] [2024-11-23 23:31:54,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625493084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:54,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:31:54,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:31:54,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403561424] [2024-11-23 23:31:54,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:54,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:31:54,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:54,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:31:54,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:31:54,596 INFO L87 Difference]: Start difference. First operand 172 states and 204 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:31:54,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:54,632 INFO L93 Difference]: Finished difference Result 339 states and 412 transitions. [2024-11-23 23:31:54,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:31:54,633 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-11-23 23:31:54,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:54,634 INFO L225 Difference]: With dead ends: 339 [2024-11-23 23:31:54,635 INFO L226 Difference]: Without dead ends: 174 [2024-11-23 23:31:54,639 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:31:54,640 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 0 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 333 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 [2024-11-23 23:31:54,640 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 333 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 23:31:54,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-11-23 23:31:54,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 174. [2024-11-23 23:31:54,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 128 states have (on average 1.2109375) internal successors, (155), 137 states have internal predecessors, (155), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-23 23:31:54,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 206 transitions. [2024-11-23 23:31:54,670 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 206 transitions. Word has length 59 [2024-11-23 23:31:54,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:54,671 INFO L471 AbstractCegarLoop]: Abstraction has 174 states and 206 transitions. [2024-11-23 23:31:54,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-23 23:31:54,671 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 206 transitions. [2024-11-23 23:31:54,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-23 23:31:54,673 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:54,675 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:54,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-23 23:31:54,675 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:54,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:54,676 INFO L85 PathProgramCache]: Analyzing trace with hash 305053303, now seen corresponding path program 1 times [2024-11-23 23:31:54,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:54,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746620895] [2024-11-23 23:31:54,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:54,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:54,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:31:54,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:54,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1746620895] [2024-11-23 23:31:54,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1746620895] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:54,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:31:54,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-23 23:31:54,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413549816] [2024-11-23 23:31:54,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:54,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 23:31:54,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:54,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 23:31:54,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:31:54,812 INFO L87 Difference]: Start difference. First operand 174 states and 206 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-23 23:31:55,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:55,015 INFO L93 Difference]: Finished difference Result 526 states and 647 transitions. [2024-11-23 23:31:55,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 23:31:55,016 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 59 [2024-11-23 23:31:55,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:55,020 INFO L225 Difference]: With dead ends: 526 [2024-11-23 23:31:55,021 INFO L226 Difference]: Without dead ends: 359 [2024-11-23 23:31:55,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 23:31:55,023 INFO L435 NwaCegarLoop]: 193 mSDtfsCounter, 140 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:31:55,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 378 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:31:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2024-11-23 23:31:55,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 352. [2024-11-23 23:31:55,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 258 states have (on average 1.2015503875968991) internal successors, (310), 274 states have internal predecessors, (310), 46 states have call successors, (46), 39 states have call predecessors, (46), 47 states have return successors, (70), 49 states have call predecessors, (70), 46 states have call successors, (70) [2024-11-23 23:31:55,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 426 transitions. [2024-11-23 23:31:55,096 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 426 transitions. Word has length 59 [2024-11-23 23:31:55,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:55,096 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 426 transitions. [2024-11-23 23:31:55,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-23 23:31:55,098 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 426 transitions. [2024-11-23 23:31:55,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-23 23:31:55,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:55,104 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:55,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-23 23:31:55,104 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:55,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:55,105 INFO L85 PathProgramCache]: Analyzing trace with hash 417301341, now seen corresponding path program 1 times [2024-11-23 23:31:55,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:55,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176804096] [2024-11-23 23:31:55,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:55,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:55,403 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-23 23:31:55,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:55,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176804096] [2024-11-23 23:31:55,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176804096] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:55,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 23:31:55,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-23 23:31:55,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006277569] [2024-11-23 23:31:55,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:55,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 23:31:55,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:55,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 23:31:55,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-23 23:31:55,407 INFO L87 Difference]: Start difference. First operand 352 states and 426 transitions. Second operand has 10 states, 10 states have (on average 4.8) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 23:31:55,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:55,884 INFO L93 Difference]: Finished difference Result 1004 states and 1262 transitions. [2024-11-23 23:31:55,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-23 23:31:55,885 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2024-11-23 23:31:55,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:55,894 INFO L225 Difference]: With dead ends: 1004 [2024-11-23 23:31:55,896 INFO L226 Difference]: Without dead ends: 659 [2024-11-23 23:31:55,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:31:55,899 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 94 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 796 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-23 23:31:55,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 796 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-23 23:31:55,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 659 states. [2024-11-23 23:31:56,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 659 to 659. [2024-11-23 23:31:56,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 477 states have (on average 1.178197064989518) internal successors, (562), 506 states have internal predecessors, (562), 91 states have call successors, (91), 77 states have call predecessors, (91), 90 states have return successors, (144), 95 states have call predecessors, (144), 91 states have call successors, (144) [2024-11-23 23:31:56,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 797 transitions. [2024-11-23 23:31:56,010 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 797 transitions. Word has length 63 [2024-11-23 23:31:56,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:56,011 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 797 transitions. [2024-11-23 23:31:56,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.8) internal successors, (48), 7 states have internal predecessors, (48), 2 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-23 23:31:56,011 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 797 transitions. [2024-11-23 23:31:56,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-23 23:31:56,016 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 23:31:56,016 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:56,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-23 23:31:56,016 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 23:31:56,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 23:31:56,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1815116042, now seen corresponding path program 1 times [2024-11-23 23:31:56,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 23:31:56,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160804204] [2024-11-23 23:31:56,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:56,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 23:31:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-23 23:31:56,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 23:31:56,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160804204] [2024-11-23 23:31:56,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160804204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 23:31:56,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254926487] [2024-11-23 23:31:56,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 23:31:56,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 23:31:56,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 23:31:56,407 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 23:31:56,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 23:31:56,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 23:31:56,551 INFO L256 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-23 23:31:56,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 23:31:56,856 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-23 23:31:56,856 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 23:31:56,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254926487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 23:31:56,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 23:31:56,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-23 23:31:56,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192539456] [2024-11-23 23:31:56,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 23:31:56,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 23:31:56,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 23:31:56,859 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 23:31:56,859 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2024-11-23 23:31:56,860 INFO L87 Difference]: Start difference. First operand 659 states and 797 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-23 23:31:57,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 23:31:57,191 INFO L93 Difference]: Finished difference Result 1431 states and 1747 transitions. [2024-11-23 23:31:57,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 23:31:57,192 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2024-11-23 23:31:57,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 23:31:57,194 INFO L225 Difference]: With dead ends: 1431 [2024-11-23 23:31:57,195 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 23:31:57,200 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2024-11-23 23:31:57,201 INFO L435 NwaCegarLoop]: 189 mSDtfsCounter, 64 mSDsluCounter, 958 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 23:31:57,201 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 1147 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 23:31:57,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 23:31:57,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 23:31:57,202 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) [2024-11-23 23:31:57,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 23:31:57,203 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 121 [2024-11-23 23:31:57,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 23:31:57,203 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 23:31:57,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-23 23:31:57,203 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 23:31:57,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 23:31:57,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 23:31:57,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 23:31:57,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-23 23:31:57,413 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 23:31:57,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 23:32:02,360 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 23:32:02,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 11:32:02 BoogieIcfgContainer [2024-11-23 23:32:02,372 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 23:32:02,373 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 23:32:02,373 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 23:32:02,373 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 23:32:02,374 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:31:51" (3/4) ... [2024-11-23 23:32:02,376 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 23:32:02,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-23 23:32:02,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-23 23:32:02,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-23 23:32:02,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-23 23:32:02,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-23 23:32:02,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-23 23:32:02,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-23 23:32:02,382 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-23 23:32:02,383 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-23 23:32:02,383 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-23 23:32:02,388 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-23 23:32:02,389 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-23 23:32:02,389 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-23 23:32:02,390 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:32:02,390 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 23:32:02,499 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 23:32:02,500 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 23:32:02,500 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 23:32:02,501 INFO L158 Benchmark]: Toolchain (without parser) took 12342.06ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 103.6MB in the beginning and 225.9MB in the end (delta: -122.3MB). Peak memory consumption was 95.9MB. Max. memory is 16.1GB. [2024-11-23 23:32:02,501 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 167.8MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:32:02,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 592.76ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 84.3MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:32:02,502 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.21ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 82.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 23:32:02,502 INFO L158 Benchmark]: Boogie Preprocessor took 92.68ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:32:02,502 INFO L158 Benchmark]: RCFGBuilder took 715.21ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 62.6MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-23 23:32:02,503 INFO L158 Benchmark]: TraceAbstraction took 10726.45ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 61.9MB in the beginning and 234.2MB in the end (delta: -172.2MB). Peak memory consumption was 154.8MB. Max. memory is 16.1GB. [2024-11-23 23:32:02,503 INFO L158 Benchmark]: Witness Printer took 126.65ms. Allocated memory is still 360.7MB. Free memory was 234.2MB in the beginning and 225.9MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 23:32:02,505 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90ms. Allocated memory is still 167.8MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 592.76ms. Allocated memory is still 142.6MB. Free memory was 103.3MB in the beginning and 84.3MB in the end (delta: 19.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.21ms. Allocated memory is still 142.6MB. Free memory was 84.3MB in the beginning and 82.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 92.68ms. Allocated memory is still 142.6MB. Free memory was 82.3MB in the beginning and 80.2MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 715.21ms. Allocated memory is still 142.6MB. Free memory was 80.2MB in the beginning and 62.6MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 10726.45ms. Allocated memory was 142.6MB in the beginning and 360.7MB in the end (delta: 218.1MB). Free memory was 61.9MB in the beginning and 234.2MB in the end (delta: -172.2MB). Peak memory consumption was 154.8MB. Max. memory is 16.1GB. * Witness Printer took 126.65ms. Allocated memory is still 360.7MB. Free memory was 234.2MB in the beginning and 225.9MB in the end (delta: 8.3MB). 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,"MinePump.i","") [49] - GenericResultAtLocation [Line: 309]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [309] - GenericResultAtLocation [Line: 379]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [379] - GenericResultAtLocation [Line: 417]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [417] - GenericResultAtLocation [Line: 783]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [783] - GenericResultAtLocation [Line: 879]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [879] - GenericResultAtLocation [Line: 983]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [983] - GenericResultAtLocation [Line: 1010]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [1010] * 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: 1015]: 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 11 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.7s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 757 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 739 mSDsluCounter, 4381 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3088 mSDsCounter, 123 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 856 IncrementalHoareTripleChecker+Invalid, 979 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 123 mSolverCounterUnsat, 1293 mSDtfsCounter, 856 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 208 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=659occurred in iteration=9, InterpolantAutomatonStates: 62, 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, 10 MinimizatonAttempts, 15 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 648 NumberOfCodeBlocks, 648 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 637 ConstructedInterpolants, 0 QuantifiedInterpolants, 1080 SizeOfPredicates, 1 NumberOfNonLiveVariables, 373 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 11 InterpolantComputations, 10 PerfectInterpolantSequences, 106/108 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 323]: Loop Invariant Derived loop invariant: ((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 795]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 322]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-23 23:32:02,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3c06669-22bc-4684-93f6-9f871d709a50/bin/uautomizer-verify-LYvppIcaGC/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