./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 5ce8f2917f3c045e2dd62444de112f0f7cfab2516baa3561b477720f1fd4fa0b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:49:43,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:49:43,173 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:49:43,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:49:43,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:49:43,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:49:43,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:49:43,217 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:49:43,218 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:49:43,219 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:49:43,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:49:43,220 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:49:43,221 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:49:43,224 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:49:43,224 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:49:43,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:49:43,225 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:49:43,225 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:49:43,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:49:43,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:49:43,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:49:43,226 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:49:43,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:49:43,227 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:49:43,227 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:49:43,227 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:49:43,227 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:49:43,228 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:49:43,228 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:49:43,228 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:49:43,228 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:49:43,229 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:49:43,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:49:43,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:49:43,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:49:43,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:49:43,230 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:49:43,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:49:43,232 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:49:43,232 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:49:43,232 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:49:43,232 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:49:43,233 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ce8f2917f3c045e2dd62444de112f0f7cfab2516baa3561b477720f1fd4fa0b [2024-11-18 14:49:43,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:49:43,506 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:49:43,509 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:49:43,510 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:49:43,511 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:49:43,513 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c [2024-11-18 14:49:45,036 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:49:45,335 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:49:45,336 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c [2024-11-18 14:49:45,365 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3017c1593/88523e73c7f548b4923db89e4df89f92/FLAGe5d335466 [2024-11-18 14:49:45,379 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3017c1593/88523e73c7f548b4923db89e4df89f92 [2024-11-18 14:49:45,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:49:45,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:49:45,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:49:45,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:49:45,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:49:45,393 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:49:45" (1/1) ... [2024-11-18 14:49:45,394 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29803afe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:45, skipping insertion in model container [2024-11-18 14:49:45,394 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:49:45" (1/1) ... [2024-11-18 14:49:45,451 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:49:45,649 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c[1937,1950] [2024-11-18 14:49:46,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:49:46,038 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:49:46,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/nxt.ok2.i","-S") [47] [2024-11-18 14:49:46,057 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekcba_nxt.2.M1-2.c[1937,1950] [2024-11-18 14:49:46,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:49:46,309 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:49:46,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46 WrapperNode [2024-11-18 14:49:46,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:49:46,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:49:46,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:49:46,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:49:46,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,560 INFO L138 Inliner]: procedures = 59, calls = 1914, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 4122 [2024-11-18 14:49:46,560 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:49:46,561 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:49:46,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:49:46,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:49:46,572 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,608 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,672 INFO L175 MemorySlicer]: Split 1439 memory accesses to 20 slices as follows [2, 8, 50, 5, 3, 264, 2, 305, 156, 113, 79, 57, 82, 105, 82, 105, 8, 7, 2, 4]. 21 percent of accesses are in the largest equivalence class. The 169 initializations are split as follows [2, 0, 0, 2, 1, 24, 0, 24, 2, 2, 1, 1, 27, 27, 27, 27, 0, 2, 0, 0]. The 203 writes are split as follows [0, 4, 26, 1, 1, 24, 1, 24, 2, 2, 1, 1, 28, 26, 28, 26, 4, 3, 1, 0]. [2024-11-18 14:49:46,673 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,752 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,769 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,795 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,813 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,846 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:49:46,848 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:49:46,848 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:49:46,848 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:49:46,849 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (1/1) ... [2024-11-18 14:49:46,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:49:46,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:49:46,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 14:49:46,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 14:49:46,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:49:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-18 14:49:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-18 14:49:46,939 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-18 14:49:46,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-18 14:49:46,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-18 14:49:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-18 14:49:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-18 14:49:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-18 14:49:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-18 14:49:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-18 14:49:46,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-18 14:49:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-18 14:49:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-18 14:49:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-18 14:49:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-18 14:49:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-18 14:49:46,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-18 14:49:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-18 14:49:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-18 14:49:46,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-18 14:49:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-18 14:49:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-18 14:49:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-18 14:49:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-18 14:49:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 14:49:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-18 14:49:46,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-18 14:49:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-18 14:49:46,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-18 14:49:46,944 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-18 14:49:46,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-18 14:49:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 14:49:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 14:49:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-18 14:49:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-18 14:49:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-18 14:49:46,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-18 14:49:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-18 14:49:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-18 14:49:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-18 14:49:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-18 14:49:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-18 14:49:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-18 14:49:46,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-18 14:49:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-18 14:49:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-18 14:49:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-18 14:49:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-18 14:49:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-18 14:49:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-18 14:49:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-18 14:49:46,948 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-18 14:49:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-18 14:49:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-18 14:49:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-18 14:49:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-18 14:49:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-18 14:49:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-18 14:49:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-18 14:49:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 14:49:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-18 14:49:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_Background [2024-11-18 14:49:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-18 14:49:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-18 14:49:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-18 14:49:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-18 14:49:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-18 14:49:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-18 14:49:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-18 14:49:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-18 14:49:46,951 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-18 14:49:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-18 14:49:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-18 14:49:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 14:49:46,953 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 14:49:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:49:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:49:46,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:49:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:49:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 14:49:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 14:49:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 14:49:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 14:49:46,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 14:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 14:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 14:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 14:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 14:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 14:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 14:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 14:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 14:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 14:49:46,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 14:49:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-18 14:49:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:49:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:49:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-18 14:49:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-18 14:49:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-18 14:49:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-18 14:49:46,956 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-18 14:49:46,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-18 14:49:47,382 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:49:47,385 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:49:52,685 INFO L? ?]: Removed 198 outVars from TransFormulas that were not future-live. [2024-11-18 14:49:52,686 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:49:52,727 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:49:52,727 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:49:52,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:49:52 BoogieIcfgContainer [2024-11-18 14:49:52,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:49:52,732 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:49:52,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:49:52,736 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:49:52,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:49:45" (1/3) ... [2024-11-18 14:49:52,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f2baef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:49:52, skipping insertion in model container [2024-11-18 14:49:52,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:49:46" (2/3) ... [2024-11-18 14:49:52,738 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f2baef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:49:52, skipping insertion in model container [2024-11-18 14:49:52,738 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:49:52" (3/3) ... [2024-11-18 14:49:52,739 INFO L112 eAbstractionObserver]: Analyzing ICFG rekcba_nxt.2.M1-2.c [2024-11-18 14:49:52,757 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:49:52,757 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:49:52,867 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:49:52,876 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;@60e6b14c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:49:52,876 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:49:52,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 1203 states, 766 states have (on average 1.283289817232376) internal successors, (983), 798 states have internal predecessors, (983), 419 states have call successors, (419), 16 states have call predecessors, (419), 16 states have return successors, (419), 417 states have call predecessors, (419), 419 states have call successors, (419) [2024-11-18 14:49:52,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2024-11-18 14:49:52,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:49:52,943 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:49:52,943 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:49:52,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:49:52,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1270347963, now seen corresponding path program 1 times [2024-11-18 14:49:52,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:49:52,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447479167] [2024-11-18 14:49:52,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:49:52,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:49:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:49:54,164 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 14112 trivial. 0 not checked. [2024-11-18 14:49:54,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:49:54,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447479167] [2024-11-18 14:49:54,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447479167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:49:54,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636990269] [2024-11-18 14:49:54,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:49:54,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:49:54,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:49:54,170 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:49:54,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:49:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:49:55,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 2638 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 14:49:55,450 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:49:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 14112 trivial. 0 not checked. [2024-11-18 14:49:55,534 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:49:55,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636990269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:49:55,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:49:55,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 14:49:55,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332755412] [2024-11-18 14:49:55,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:49:55,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:49:55,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:49:55,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:49:55,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:49:55,580 INFO L87 Difference]: Start difference. First operand has 1203 states, 766 states have (on average 1.283289817232376) internal successors, (983), 798 states have internal predecessors, (983), 419 states have call successors, (419), 16 states have call predecessors, (419), 16 states have return successors, (419), 417 states have call predecessors, (419), 419 states have call successors, (419) Second operand has 2 states, 2 states have (on average 150.5) internal successors, (301), 2 states have internal predecessors, (301), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85) [2024-11-18 14:49:55,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:49:55,730 INFO L93 Difference]: Finished difference Result 2401 states and 4039 transitions. [2024-11-18 14:49:55,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:49:55,735 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 150.5) internal successors, (301), 2 states have internal predecessors, (301), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85) Word has length 722 [2024-11-18 14:49:55,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:49:55,760 INFO L225 Difference]: With dead ends: 2401 [2024-11-18 14:49:55,760 INFO L226 Difference]: Without dead ends: 1195 [2024-11-18 14:49:55,777 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:49:55,781 INFO L432 NwaCegarLoop]: 1818 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, 1818 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 [2024-11-18 14:49:55,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1818 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:49:55,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2024-11-18 14:49:56,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1195. [2024-11-18 14:49:56,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1195 states, 759 states have (on average 1.2806324110671936) internal successors, (972), 791 states have internal predecessors, (972), 419 states have call successors, (419), 16 states have call predecessors, (419), 16 states have return successors, (418), 416 states have call predecessors, (418), 418 states have call successors, (418) [2024-11-18 14:49:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1195 states to 1195 states and 1809 transitions. [2024-11-18 14:49:56,030 INFO L78 Accepts]: Start accepts. Automaton has 1195 states and 1809 transitions. Word has length 722 [2024-11-18 14:49:56,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:49:56,032 INFO L471 AbstractCegarLoop]: Abstraction has 1195 states and 1809 transitions. [2024-11-18 14:49:56,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 150.5) internal successors, (301), 2 states have internal predecessors, (301), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 1 states have call predecessors, (85), 2 states have call successors, (85) [2024-11-18 14:49:56,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1195 states and 1809 transitions. [2024-11-18 14:49:56,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 723 [2024-11-18 14:49:56,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:49:56,061 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:49:56,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-18 14:49:56,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 14:49:56,266 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:49:56,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:49:56,267 INFO L85 PathProgramCache]: Analyzing trace with hash 2034080811, now seen corresponding path program 1 times [2024-11-18 14:49:56,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:49:56,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048149775] [2024-11-18 14:49:56,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:49:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:49:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:00,539 INFO L134 CoverageAnalysis]: Checked inductivity of 14280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2024-11-18 14:50:00,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:00,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048149775] [2024-11-18 14:50:00,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048149775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:00,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:00,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:50:00,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721137241] [2024-11-18 14:50:00,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:00,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:50:00,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:00,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:50:00,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:00,547 INFO L87 Difference]: Start difference. First operand 1195 states and 1809 transitions. Second operand has 6 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-18 14:50:01,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:01,009 INFO L93 Difference]: Finished difference Result 1626 states and 2462 transitions. [2024-11-18 14:50:01,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:50:01,010 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) Word has length 722 [2024-11-18 14:50:01,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:01,025 INFO L225 Difference]: With dead ends: 1626 [2024-11-18 14:50:01,026 INFO L226 Difference]: Without dead ends: 1624 [2024-11-18 14:50:01,028 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:50:01,029 INFO L432 NwaCegarLoop]: 1805 mSDtfsCounter, 1435 mSDsluCounter, 5965 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1435 SdHoareTripleChecker+Valid, 7770 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:01,030 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1435 Valid, 7770 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:50:01,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1624 states. [2024-11-18 14:50:01,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1624 to 1622. [2024-11-18 14:50:01,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1014 states have (on average 1.2652859960552267) internal successors, (1283), 1072 states have internal predecessors, (1283), 577 states have call successors, (577), 30 states have call predecessors, (577), 30 states have return successors, (599), 572 states have call predecessors, (599), 575 states have call successors, (599) [2024-11-18 14:50:01,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2459 transitions. [2024-11-18 14:50:01,435 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2459 transitions. Word has length 722 [2024-11-18 14:50:01,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:01,440 INFO L471 AbstractCegarLoop]: Abstraction has 1622 states and 2459 transitions. [2024-11-18 14:50:01,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 2 states have call successors, (86), 2 states have call predecessors, (86), 1 states have return successors, (85), 1 states have call predecessors, (85), 1 states have call successors, (85) [2024-11-18 14:50:01,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2459 transitions. [2024-11-18 14:50:01,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 729 [2024-11-18 14:50:01,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:01,470 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:01,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:50:01,470 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:01,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:01,472 INFO L85 PathProgramCache]: Analyzing trace with hash -518452525, now seen corresponding path program 1 times [2024-11-18 14:50:01,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:01,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583002193] [2024-11-18 14:50:01,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:01,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 14282 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14280 trivial. 0 not checked. [2024-11-18 14:50:04,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:04,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583002193] [2024-11-18 14:50:04,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1583002193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:04,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:04,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:50:04,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39011438] [2024-11-18 14:50:04,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:04,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:50:04,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:04,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:50:04,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:04,527 INFO L87 Difference]: Start difference. First operand 1622 states and 2459 transitions. Second operand has 6 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-18 14:50:04,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:04,945 INFO L93 Difference]: Finished difference Result 1630 states and 2465 transitions. [2024-11-18 14:50:04,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:50:04,946 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) Word has length 728 [2024-11-18 14:50:04,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:04,959 INFO L225 Difference]: With dead ends: 1630 [2024-11-18 14:50:04,959 INFO L226 Difference]: Without dead ends: 1628 [2024-11-18 14:50:04,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:50:04,961 INFO L432 NwaCegarLoop]: 1808 mSDtfsCounter, 1430 mSDsluCounter, 5969 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1430 SdHoareTripleChecker+Valid, 7777 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:04,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1430 Valid, 7777 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:50:04,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2024-11-18 14:50:05,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 1626. [2024-11-18 14:50:05,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1017 states have (on average 1.264503441494592) internal successors, (1286), 1075 states have internal predecessors, (1286), 577 states have call successors, (577), 31 states have call predecessors, (577), 31 states have return successors, (599), 572 states have call predecessors, (599), 575 states have call successors, (599) [2024-11-18 14:50:05,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2462 transitions. [2024-11-18 14:50:05,249 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2462 transitions. Word has length 728 [2024-11-18 14:50:05,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:05,252 INFO L471 AbstractCegarLoop]: Abstraction has 1626 states and 2462 transitions. [2024-11-18 14:50:05,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 60.6) internal successors, (303), 5 states have internal predecessors, (303), 2 states have call successors, (87), 2 states have call predecessors, (87), 1 states have return successors, (86), 1 states have call predecessors, (86), 1 states have call successors, (86) [2024-11-18 14:50:05,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2462 transitions. [2024-11-18 14:50:05,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2024-11-18 14:50:05,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:05,292 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:05,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:50:05,293 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:05,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:05,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1623696505, now seen corresponding path program 1 times [2024-11-18 14:50:05,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:05,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687271626] [2024-11-18 14:50:05,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:05,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:06,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:08,421 INFO L134 CoverageAnalysis]: Checked inductivity of 14288 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14284 trivial. 0 not checked. [2024-11-18 14:50:08,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:08,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687271626] [2024-11-18 14:50:08,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687271626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:08,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:08,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:50:08,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130652125] [2024-11-18 14:50:08,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:08,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:50:08,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:08,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:50:08,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:08,429 INFO L87 Difference]: Start difference. First operand 1626 states and 2462 transitions. Second operand has 6 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 14:50:08,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:08,839 INFO L93 Difference]: Finished difference Result 1634 states and 2468 transitions. [2024-11-18 14:50:08,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:50:08,840 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) Word has length 734 [2024-11-18 14:50:08,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:08,855 INFO L225 Difference]: With dead ends: 1634 [2024-11-18 14:50:08,855 INFO L226 Difference]: Without dead ends: 1632 [2024-11-18 14:50:08,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:50:08,858 INFO L432 NwaCegarLoop]: 1808 mSDtfsCounter, 1428 mSDsluCounter, 5969 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1428 SdHoareTripleChecker+Valid, 7777 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:08,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1428 Valid, 7777 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:50:08,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2024-11-18 14:50:09,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1630. [2024-11-18 14:50:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1630 states, 1020 states have (on average 1.2637254901960784) internal successors, (1289), 1078 states have internal predecessors, (1289), 577 states have call successors, (577), 32 states have call predecessors, (577), 32 states have return successors, (599), 572 states have call predecessors, (599), 575 states have call successors, (599) [2024-11-18 14:50:09,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1630 states to 1630 states and 2465 transitions. [2024-11-18 14:50:09,125 INFO L78 Accepts]: Start accepts. Automaton has 1630 states and 2465 transitions. Word has length 734 [2024-11-18 14:50:09,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:09,127 INFO L471 AbstractCegarLoop]: Abstraction has 1630 states and 2465 transitions. [2024-11-18 14:50:09,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 60.8) internal successors, (304), 5 states have internal predecessors, (304), 2 states have call successors, (88), 2 states have call predecessors, (88), 1 states have return successors, (87), 1 states have call predecessors, (87), 1 states have call successors, (87) [2024-11-18 14:50:09,128 INFO L276 IsEmpty]: Start isEmpty. Operand 1630 states and 2465 transitions. [2024-11-18 14:50:09,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 741 [2024-11-18 14:50:09,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:09,146 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:09,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:50:09,147 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:09,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:09,148 INFO L85 PathProgramCache]: Analyzing trace with hash -802114915, now seen corresponding path program 1 times [2024-11-18 14:50:09,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:09,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43777683] [2024-11-18 14:50:09,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:09,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:12,206 INFO L134 CoverageAnalysis]: Checked inductivity of 14298 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14292 trivial. 0 not checked. [2024-11-18 14:50:12,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:12,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43777683] [2024-11-18 14:50:12,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43777683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:12,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:12,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:50:12,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798234546] [2024-11-18 14:50:12,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:12,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:50:12,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:12,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:50:12,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:12,211 INFO L87 Difference]: Start difference. First operand 1630 states and 2465 transitions. Second operand has 6 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 1 states have call predecessors, (88), 1 states have call successors, (88) [2024-11-18 14:50:12,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:12,614 INFO L93 Difference]: Finished difference Result 1638 states and 2471 transitions. [2024-11-18 14:50:12,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:50:12,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 1 states have call predecessors, (88), 1 states have call successors, (88) Word has length 740 [2024-11-18 14:50:12,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:12,627 INFO L225 Difference]: With dead ends: 1638 [2024-11-18 14:50:12,627 INFO L226 Difference]: Without dead ends: 1636 [2024-11-18 14:50:12,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:50:12,630 INFO L432 NwaCegarLoop]: 1808 mSDtfsCounter, 1426 mSDsluCounter, 5969 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 7777 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:12,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1426 Valid, 7777 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:50:12,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1636 states. [2024-11-18 14:50:12,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1636 to 1634. [2024-11-18 14:50:12,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1023 states have (on average 1.262952101661779) internal successors, (1292), 1081 states have internal predecessors, (1292), 577 states have call successors, (577), 33 states have call predecessors, (577), 33 states have return successors, (599), 572 states have call predecessors, (599), 575 states have call successors, (599) [2024-11-18 14:50:12,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2468 transitions. [2024-11-18 14:50:12,845 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2468 transitions. Word has length 740 [2024-11-18 14:50:12,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:12,846 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2468 transitions. [2024-11-18 14:50:12,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 61.0) internal successors, (305), 5 states have internal predecessors, (305), 2 states have call successors, (89), 2 states have call predecessors, (89), 1 states have return successors, (88), 1 states have call predecessors, (88), 1 states have call successors, (88) [2024-11-18 14:50:12,847 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2468 transitions. [2024-11-18 14:50:12,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 747 [2024-11-18 14:50:12,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:12,863 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:12,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:50:12,863 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:12,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:12,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1476288191, now seen corresponding path program 1 times [2024-11-18 14:50:12,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:12,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342094072] [2024-11-18 14:50:12,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:12,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:15,343 INFO L134 CoverageAnalysis]: Checked inductivity of 14312 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 14304 trivial. 0 not checked. [2024-11-18 14:50:15,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:15,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342094072] [2024-11-18 14:50:15,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342094072] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:15,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:15,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:50:15,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946943024] [2024-11-18 14:50:15,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:15,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:50:15,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:15,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:50:15,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:15,350 INFO L87 Difference]: Start difference. First operand 1634 states and 2468 transitions. Second operand has 6 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-18 14:50:15,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:15,763 INFO L93 Difference]: Finished difference Result 1642 states and 2474 transitions. [2024-11-18 14:50:15,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:50:15,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) Word has length 746 [2024-11-18 14:50:15,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:15,777 INFO L225 Difference]: With dead ends: 1642 [2024-11-18 14:50:15,779 INFO L226 Difference]: Without dead ends: 1640 [2024-11-18 14:50:15,781 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:50:15,781 INFO L432 NwaCegarLoop]: 1808 mSDtfsCounter, 1424 mSDsluCounter, 5969 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1424 SdHoareTripleChecker+Valid, 7777 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:15,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1424 Valid, 7777 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:50:15,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2024-11-18 14:50:15,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1638. [2024-11-18 14:50:15,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1026 states have (on average 1.2621832358674463) internal successors, (1295), 1084 states have internal predecessors, (1295), 577 states have call successors, (577), 34 states have call predecessors, (577), 34 states have return successors, (599), 572 states have call predecessors, (599), 575 states have call successors, (599) [2024-11-18 14:50:16,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2471 transitions. [2024-11-18 14:50:16,008 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2471 transitions. Word has length 746 [2024-11-18 14:50:16,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:16,011 INFO L471 AbstractCegarLoop]: Abstraction has 1638 states and 2471 transitions. [2024-11-18 14:50:16,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 61.2) internal successors, (306), 5 states have internal predecessors, (306), 2 states have call successors, (90), 2 states have call predecessors, (90), 1 states have return successors, (89), 1 states have call predecessors, (89), 1 states have call successors, (89) [2024-11-18 14:50:16,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2471 transitions. [2024-11-18 14:50:16,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 753 [2024-11-18 14:50:16,027 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:16,027 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 6, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:16,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:50:16,027 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:16,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:16,028 INFO L85 PathProgramCache]: Analyzing trace with hash -873090465, now seen corresponding path program 1 times [2024-11-18 14:50:16,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:16,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674566142] [2024-11-18 14:50:16,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:16,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 14330 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14320 trivial. 0 not checked. [2024-11-18 14:50:18,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:18,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674566142] [2024-11-18 14:50:18,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674566142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:18,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:18,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:50:18,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044128573] [2024-11-18 14:50:18,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:18,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:50:18,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:18,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:50:18,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:18,704 INFO L87 Difference]: Start difference. First operand 1638 states and 2471 transitions. Second operand has 6 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 2 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-18 14:50:19,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:19,096 INFO L93 Difference]: Finished difference Result 1646 states and 2477 transitions. [2024-11-18 14:50:19,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:50:19,097 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 2 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) Word has length 752 [2024-11-18 14:50:19,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:19,115 INFO L225 Difference]: With dead ends: 1646 [2024-11-18 14:50:19,115 INFO L226 Difference]: Without dead ends: 1644 [2024-11-18 14:50:19,117 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:50:19,118 INFO L432 NwaCegarLoop]: 1808 mSDtfsCounter, 1422 mSDsluCounter, 5969 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1422 SdHoareTripleChecker+Valid, 7777 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:19,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1422 Valid, 7777 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:50:19,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2024-11-18 14:50:19,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1642. [2024-11-18 14:50:19,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1029 states have (on average 1.261418853255588) internal successors, (1298), 1087 states have internal predecessors, (1298), 577 states have call successors, (577), 35 states have call predecessors, (577), 35 states have return successors, (599), 572 states have call predecessors, (599), 575 states have call successors, (599) [2024-11-18 14:50:19,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2474 transitions. [2024-11-18 14:50:19,344 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2474 transitions. Word has length 752 [2024-11-18 14:50:19,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:19,345 INFO L471 AbstractCegarLoop]: Abstraction has 1642 states and 2474 transitions. [2024-11-18 14:50:19,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 61.4) internal successors, (307), 5 states have internal predecessors, (307), 2 states have call successors, (91), 2 states have call predecessors, (91), 1 states have return successors, (90), 1 states have call predecessors, (90), 1 states have call successors, (90) [2024-11-18 14:50:19,347 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2474 transitions. [2024-11-18 14:50:19,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2024-11-18 14:50:19,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:19,369 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:19,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:50:19,369 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:19,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:19,370 INFO L85 PathProgramCache]: Analyzing trace with hash 1774934611, now seen corresponding path program 1 times [2024-11-18 14:50:19,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:19,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595375139] [2024-11-18 14:50:19,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:19,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:19,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:20,536 INFO L134 CoverageAnalysis]: Checked inductivity of 14623 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14623 trivial. 0 not checked. [2024-11-18 14:50:20,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:20,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595375139] [2024-11-18 14:50:20,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595375139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:20,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:20,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:50:20,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79854756] [2024-11-18 14:50:20,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:20,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:50:20,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:20,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:50:20,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:50:20,542 INFO L87 Difference]: Start difference. First operand 1642 states and 2474 transitions. Second operand has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 3 states have call successors, (92), 2 states have call predecessors, (92), 3 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2024-11-18 14:50:22,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:22,163 INFO L93 Difference]: Finished difference Result 3405 states and 5241 transitions. [2024-11-18 14:50:22,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:50:22,164 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 3 states have call successors, (92), 2 states have call predecessors, (92), 3 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) Word has length 769 [2024-11-18 14:50:22,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:22,186 INFO L225 Difference]: With dead ends: 3405 [2024-11-18 14:50:22,186 INFO L226 Difference]: Without dead ends: 2533 [2024-11-18 14:50:22,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:22,197 INFO L432 NwaCegarLoop]: 2329 mSDtfsCounter, 2726 mSDsluCounter, 2969 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 837 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2726 SdHoareTripleChecker+Valid, 5298 SdHoareTripleChecker+Invalid, 899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 837 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:22,197 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2726 Valid, 5298 Invalid, 899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [837 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 14:50:22,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2533 states. [2024-11-18 14:50:22,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2533 to 2388. [2024-11-18 14:50:22,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2388 states, 1482 states have (on average 1.2550607287449393) internal successors, (1860), 1592 states have internal predecessors, (1860), 844 states have call successors, (844), 61 states have call predecessors, (844), 61 states have return successors, (918), 835 states have call predecessors, (918), 842 states have call successors, (918) [2024-11-18 14:50:22,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 3622 transitions. [2024-11-18 14:50:22,553 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 3622 transitions. Word has length 769 [2024-11-18 14:50:22,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:22,554 INFO L471 AbstractCegarLoop]: Abstraction has 2388 states and 3622 transitions. [2024-11-18 14:50:22,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.8) internal successors, (329), 5 states have internal predecessors, (329), 3 states have call successors, (92), 2 states have call predecessors, (92), 3 states have return successors, (91), 3 states have call predecessors, (91), 3 states have call successors, (91) [2024-11-18 14:50:22,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 3622 transitions. [2024-11-18 14:50:22,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 765 [2024-11-18 14:50:22,582 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:22,582 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:22,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:50:22,583 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:22,583 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:22,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1364510797, now seen corresponding path program 1 times [2024-11-18 14:50:22,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:22,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941339846] [2024-11-18 14:50:22,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:22,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:22,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:23,580 INFO L134 CoverageAnalysis]: Checked inductivity of 14623 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14623 trivial. 0 not checked. [2024-11-18 14:50:23,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:23,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941339846] [2024-11-18 14:50:23,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941339846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:23,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:23,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:50:23,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949570626] [2024-11-18 14:50:23,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:23,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:50:23,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:23,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:50:23,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:50:23,589 INFO L87 Difference]: Start difference. First operand 2388 states and 3622 transitions. Second operand has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 2 states have call successors, (91), 2 states have call predecessors, (91), 3 states have return successors, (90), 3 states have call predecessors, (90), 2 states have call successors, (90) [2024-11-18 14:50:25,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:25,297 INFO L93 Difference]: Finished difference Result 4740 states and 7320 transitions. [2024-11-18 14:50:25,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:50:25,297 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 2 states have call successors, (91), 2 states have call predecessors, (91), 3 states have return successors, (90), 3 states have call predecessors, (90), 2 states have call successors, (90) Word has length 764 [2024-11-18 14:50:25,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:25,334 INFO L225 Difference]: With dead ends: 4740 [2024-11-18 14:50:25,334 INFO L226 Difference]: Without dead ends: 3960 [2024-11-18 14:50:25,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:25,350 INFO L432 NwaCegarLoop]: 2165 mSDtfsCounter, 2739 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 842 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2739 SdHoareTripleChecker+Valid, 4935 SdHoareTripleChecker+Invalid, 897 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:25,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2739 Valid, 4935 Invalid, 897 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 14:50:25,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2024-11-18 14:50:25,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3816. [2024-11-18 14:50:25,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3816 states, 2348 states have (on average 1.2495741056218057) internal successors, (2934), 2558 states have internal predecessors, (2934), 1358 states have call successors, (1358), 109 states have call predecessors, (1358), 109 states have return successors, (1575), 1341 states have call predecessors, (1575), 1356 states have call successors, (1575) [2024-11-18 14:50:25,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3816 states to 3816 states and 5867 transitions. [2024-11-18 14:50:25,823 INFO L78 Accepts]: Start accepts. Automaton has 3816 states and 5867 transitions. Word has length 764 [2024-11-18 14:50:25,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:25,824 INFO L471 AbstractCegarLoop]: Abstraction has 3816 states and 5867 transitions. [2024-11-18 14:50:25,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 65.2) internal successors, (326), 5 states have internal predecessors, (326), 2 states have call successors, (91), 2 states have call predecessors, (91), 3 states have return successors, (90), 3 states have call predecessors, (90), 2 states have call successors, (90) [2024-11-18 14:50:25,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3816 states and 5867 transitions. [2024-11-18 14:50:25,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2024-11-18 14:50:25,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:25,871 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:25,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:50:25,872 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:25,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:25,872 INFO L85 PathProgramCache]: Analyzing trace with hash -1206289510, now seen corresponding path program 1 times [2024-11-18 14:50:25,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:25,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493893967] [2024-11-18 14:50:25,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:25,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:29,098 INFO L134 CoverageAnalysis]: Checked inductivity of 14623 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14623 trivial. 0 not checked. [2024-11-18 14:50:29,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:29,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493893967] [2024-11-18 14:50:29,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493893967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:29,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:29,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:50:29,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436183577] [2024-11-18 14:50:29,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:29,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:50:29,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:29,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:50:29,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:50:29,102 INFO L87 Difference]: Start difference. First operand 3816 states and 5867 transitions. Second operand has 9 states, 8 states have (on average 41.125) internal successors, (329), 8 states have internal predecessors, (329), 6 states have call successors, (92), 3 states have call predecessors, (92), 2 states have return successors, (91), 4 states have call predecessors, (91), 5 states have call successors, (91) [2024-11-18 14:50:34,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:34,370 INFO L93 Difference]: Finished difference Result 5140 states and 7697 transitions. [2024-11-18 14:50:34,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 14:50:34,371 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 41.125) internal successors, (329), 8 states have internal predecessors, (329), 6 states have call successors, (92), 3 states have call predecessors, (92), 2 states have return successors, (91), 4 states have call predecessors, (91), 5 states have call successors, (91) Word has length 769 [2024-11-18 14:50:34,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:34,422 INFO L225 Difference]: With dead ends: 5140 [2024-11-18 14:50:34,423 INFO L226 Difference]: Without dead ends: 5138 [2024-11-18 14:50:34,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:50:34,429 INFO L432 NwaCegarLoop]: 1245 mSDtfsCounter, 2693 mSDsluCounter, 4652 mSDsCounter, 0 mSdLazyCounter, 3240 mSolverCounterSat, 2281 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3048 SdHoareTripleChecker+Valid, 5897 SdHoareTripleChecker+Invalid, 5521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2281 IncrementalHoareTripleChecker+Valid, 3240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:34,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3048 Valid, 5897 Invalid, 5521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2281 Valid, 3240 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-18 14:50:34,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5138 states. [2024-11-18 14:50:34,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5138 to 5136. [2024-11-18 14:50:35,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5136 states, 3230 states have (on average 1.256656346749226) internal successors, (4059), 3466 states have internal predecessors, (4059), 1694 states have call successors, (1694), 209 states have call predecessors, (1694), 211 states have return successors, (1941), 1661 states have call predecessors, (1941), 1691 states have call successors, (1941) [2024-11-18 14:50:35,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5136 states to 5136 states and 7694 transitions. [2024-11-18 14:50:35,041 INFO L78 Accepts]: Start accepts. Automaton has 5136 states and 7694 transitions. Word has length 769 [2024-11-18 14:50:35,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:35,042 INFO L471 AbstractCegarLoop]: Abstraction has 5136 states and 7694 transitions. [2024-11-18 14:50:35,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 41.125) internal successors, (329), 8 states have internal predecessors, (329), 6 states have call successors, (92), 3 states have call predecessors, (92), 2 states have return successors, (91), 4 states have call predecessors, (91), 5 states have call successors, (91) [2024-11-18 14:50:35,043 INFO L276 IsEmpty]: Start isEmpty. Operand 5136 states and 7694 transitions. [2024-11-18 14:50:35,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2024-11-18 14:50:35,092 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:35,092 INFO L215 NwaCegarLoop]: trace histogram [85, 85, 85, 7, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:35,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:50:35,093 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:35,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:35,094 INFO L85 PathProgramCache]: Analyzing trace with hash -481388803, now seen corresponding path program 1 times [2024-11-18 14:50:35,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:35,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811476991] [2024-11-18 14:50:35,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:35,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:35,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:37,172 INFO L134 CoverageAnalysis]: Checked inductivity of 14352 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14340 trivial. 0 not checked. [2024-11-18 14:50:37,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:37,173 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811476991] [2024-11-18 14:50:37,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811476991] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:37,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:37,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:50:37,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386743016] [2024-11-18 14:50:37,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:37,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:50:37,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:37,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:50:37,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:37,176 INFO L87 Difference]: Start difference. First operand 5136 states and 7694 transitions. Second operand has 6 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 2 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (91), 1 states have call predecessors, (91), 1 states have call successors, (91) [2024-11-18 14:50:37,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:37,768 INFO L93 Difference]: Finished difference Result 5144 states and 7700 transitions. [2024-11-18 14:50:37,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:50:37,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 2 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (91), 1 states have call predecessors, (91), 1 states have call successors, (91) Word has length 758 [2024-11-18 14:50:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:37,815 INFO L225 Difference]: With dead ends: 5144 [2024-11-18 14:50:37,815 INFO L226 Difference]: Without dead ends: 5142 [2024-11-18 14:50:37,822 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:50:37,823 INFO L432 NwaCegarLoop]: 1793 mSDtfsCounter, 1420 mSDsluCounter, 5947 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1420 SdHoareTripleChecker+Valid, 7740 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:37,823 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1420 Valid, 7740 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:50:37,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5142 states. [2024-11-18 14:50:38,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5142 to 5140. [2024-11-18 14:50:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5140 states, 3233 states have (on average 1.2564181874420044) internal successors, (4062), 3469 states have internal predecessors, (4062), 1694 states have call successors, (1694), 210 states have call predecessors, (1694), 212 states have return successors, (1941), 1661 states have call predecessors, (1941), 1691 states have call successors, (1941) [2024-11-18 14:50:38,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5140 states to 5140 states and 7697 transitions. [2024-11-18 14:50:38,457 INFO L78 Accepts]: Start accepts. Automaton has 5140 states and 7697 transitions. Word has length 758 [2024-11-18 14:50:38,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:38,458 INFO L471 AbstractCegarLoop]: Abstraction has 5140 states and 7697 transitions. [2024-11-18 14:50:38,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 61.6) internal successors, (308), 5 states have internal predecessors, (308), 2 states have call successors, (92), 2 states have call predecessors, (92), 1 states have return successors, (91), 1 states have call predecessors, (91), 1 states have call successors, (91) [2024-11-18 14:50:38,459 INFO L276 IsEmpty]: Start isEmpty. Operand 5140 states and 7697 transitions. [2024-11-18 14:50:38,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2024-11-18 14:50:38,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:38,514 INFO L215 NwaCegarLoop]: trace histogram [86, 86, 86, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:50:38,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:50:38,514 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:38,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:38,515 INFO L85 PathProgramCache]: Analyzing trace with hash -853189886, now seen corresponding path program 1 times [2024-11-18 14:50:38,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:38,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525617549] [2024-11-18 14:50:38,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:38,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:41,338 INFO L134 CoverageAnalysis]: Checked inductivity of 14625 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14623 trivial. 0 not checked. [2024-11-18 14:50:41,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:41,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525617549] [2024-11-18 14:50:41,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525617549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:41,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:41,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 14:50:41,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714160506] [2024-11-18 14:50:41,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:41,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 14:50:41,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:41,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 14:50:41,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:50:41,342 INFO L87 Difference]: Start difference. First operand 5140 states and 7697 transitions. Second operand has 9 states, 8 states have (on average 41.625) internal successors, (333), 8 states have internal predecessors, (333), 6 states have call successors, (93), 3 states have call predecessors, (93), 2 states have return successors, (92), 4 states have call predecessors, (92), 5 states have call successors, (92)