./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.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/rekh_aso.1.M1-1.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 2db6eb55010ab7d3a1a946055e6deb2837efdfd8388654051519bf5d1a66e523 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:50:03,123 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:50:03,195 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:50:03,202 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:50:03,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:50:03,238 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:50:03,239 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:50:03,239 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:50:03,240 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:50:03,241 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:50:03,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:50:03,242 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:50:03,242 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:50:03,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:50:03,243 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:50:03,246 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:50:03,247 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:50:03,247 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:50:03,247 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:50:03,247 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:50:03,247 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:50:03,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:50:03,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:50:03,262 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:50:03,263 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:50:03,263 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:50:03,263 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:50:03,264 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:50:03,264 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:50:03,265 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:50:03,265 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:50:03,266 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:50:03,266 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:50:03,266 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:50:03,266 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:50:03,267 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:50:03,267 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:50:03,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:50:03,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:50:03,268 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:50:03,268 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:50:03,268 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:50:03,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2db6eb55010ab7d3a1a946055e6deb2837efdfd8388654051519bf5d1a66e523 [2024-11-18 14:50:03,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:50:03,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:50:03,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:50:03,564 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:50:03,565 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:50:03,566 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c [2024-11-18 14:50:04,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:50:05,348 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:50:05,349 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.1.M1-1.c [2024-11-18 14:50:05,379 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dd0c99fe/78b51213906344e88512e90cd186f41b/FLAG727db3e53 [2024-11-18 14:50:05,395 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1dd0c99fe/78b51213906344e88512e90cd186f41b [2024-11-18 14:50:05,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:50:05,400 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:50:05,404 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:50:05,404 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:50:05,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:50:05,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:50:05" (1/1) ... [2024-11-18 14:50:05,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bfcaac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:05, skipping insertion in model container [2024-11-18 14:50:05,413 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:50:05" (1/1) ... [2024-11-18 14:50:05,479 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:50:05,691 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/rekh_aso.1.M1-1.c[1800,1813] [2024-11-18 14:50:06,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:50:06,156 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:50:06,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.ok1.i","-S") [43] [2024-11-18 14:50:06,174 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/rekh_aso.1.M1-1.c[1800,1813] [2024-11-18 14:50:06,448 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:50:06,480 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:50:06,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06 WrapperNode [2024-11-18 14:50:06,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:50:06,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:50:06,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:50:06,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:50:06,489 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:06,565 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:06,881 INFO L138 Inliner]: procedures = 60, calls = 3453, calls flagged for inlining = 19, calls inlined = 19, statements flattened = 7524 [2024-11-18 14:50:06,881 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:50:06,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:50:06,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:50:06,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:50:06,893 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:06,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:06,947 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:07,041 INFO L175 MemorySlicer]: Split 2465 memory accesses to 19 slices as follows [2, 8, 319, 355, 113, 113, 180, 4, 203, 180, 203, 180, 2, 203, 2, 180, 203, 8, 7]. 14 percent of accesses are in the largest equivalence class. The 328 initializations are split as follows [2, 0, 27, 27, 27, 27, 27, 0, 27, 27, 27, 27, 0, 27, 0, 27, 27, 0, 2]. The 337 writes are split as follows [0, 4, 27, 27, 27, 27, 28, 0, 26, 28, 26, 28, 1, 26, 1, 28, 26, 4, 3]. [2024-11-18 14:50:07,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:07,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:07,290 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:07,321 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:07,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:07,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:07,434 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:50:07,435 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:50:07,436 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:50:07,436 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:50:07,437 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (1/1) ... [2024-11-18 14:50:07,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:50:07,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:50:07,476 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 14:50:07,480 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 14:50:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:50:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2024-11-18 14:50:07,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2024-11-18 14:50:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-18 14:50:07,533 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-18 14:50:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-18 14:50:07,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-18 14:50:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-18 14:50:07,535 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-18 14:50:07,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-18 14:50:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-18 14:50:07,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-18 14:50:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-18 14:50:07,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-18 14:50:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-18 14:50:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-18 14:50:07,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-18 14:50:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-18 14:50:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-18 14:50:07,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-18 14:50:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-18 14:50:07,538 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-18 14:50:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-18 14:50:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-18 14:50:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-18 14:50:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-18 14:50:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-18 14:50:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-18 14:50:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-18 14:50:07,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-18 14:50:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-18 14:50:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-18 14:50:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-18 14:50:07,541 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-18 14:50:07,541 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-18 14:50:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-18 14:50:07,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-18 14:50:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2024-11-18 14:50:07,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2024-11-18 14:50:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-18 14:50:07,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-18 14:50:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-18 14:50:07,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-18 14:50:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2024-11-18 14:50:07,542 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2024-11-18 14:50:07,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-18 14:50:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-18 14:50:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-18 14:50:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-18 14:50:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-18 14:50:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-18 14:50:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-18 14:50:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-18 14:50:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-18 14:50:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-18 14:50:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-18 14:50:07,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-18 14:50:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-18 14:50:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-18 14:50:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-18 14:50:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-18 14:50:07,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-18 14:50:07,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-18 14:50:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-18 14:50:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-18 14:50:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-18 14:50:07,546 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-18 14:50:07,546 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-18 14:50:07,546 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-18 14:50:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2024-11-18 14:50:07,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2024-11-18 14:50:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2024-11-18 14:50:07,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2024-11-18 14:50:07,547 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 14:50:07,547 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 14:50:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:50:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 14:50:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 14:50:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 14:50:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 14:50:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 14:50:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 14:50:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 14:50:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 14:50:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 14:50:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 14:50:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 14:50:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 14:50:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 14:50:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 14:50:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 14:50:07,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 14:50:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 14:50:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 14:50:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:50:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:50:07,551 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-18 14:50:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-18 14:50:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-18 14:50:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-18 14:50:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-18 14:50:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-18 14:50:07,552 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2024-11-18 14:50:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2024-11-18 14:50:08,119 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:50:08,122 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:50:16,761 INFO L? ?]: Removed 405 outVars from TransFormulas that were not future-live. [2024-11-18 14:50:16,762 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:50:16,810 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:50:16,811 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:50:16,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:50:16 BoogieIcfgContainer [2024-11-18 14:50:16,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:50:16,814 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:50:16,814 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:50:16,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:50:16,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:50:05" (1/3) ... [2024-11-18 14:50:16,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690be0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:50:16, skipping insertion in model container [2024-11-18 14:50:16,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:50:06" (2/3) ... [2024-11-18 14:50:16,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690be0df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:50:16, skipping insertion in model container [2024-11-18 14:50:16,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:50:16" (3/3) ... [2024-11-18 14:50:16,821 INFO L112 eAbstractionObserver]: Analyzing ICFG rekh_aso.1.M1-1.c [2024-11-18 14:50:16,837 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:50:16,838 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:50:16,970 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:50:16,976 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;@346046d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:50:16,977 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:50:16,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 2210 states, 1249 states have (on average 1.2185748598879103) internal successors, (1522), 1378 states have internal predecessors, (1522), 938 states have call successors, (938), 21 states have call predecessors, (938), 21 states have return successors, (938), 838 states have call predecessors, (938), 938 states have call successors, (938) [2024-11-18 14:50:17,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2024-11-18 14:50:17,071 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:17,073 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:17,073 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:17,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:17,078 INFO L85 PathProgramCache]: Analyzing trace with hash 1920528408, now seen corresponding path program 1 times [2024-11-18 14:50:17,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:17,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646489458] [2024-11-18 14:50:17,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:17,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:19,038 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2024-11-18 14:50:19,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:19,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646489458] [2024-11-18 14:50:19,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646489458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:50:19,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389752048] [2024-11-18 14:50:19,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:19,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:50:19,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:50:19,045 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 14:50:19,047 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 14:50:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:21,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 4543 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 14:50:21,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:50:21,174 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2024-11-18 14:50:21,174 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 14:50:21,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389752048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:21,175 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 14:50:21,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 14:50:21,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400096734] [2024-11-18 14:50:21,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:21,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:50:21,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:21,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:50:21,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:50:21,228 INFO L87 Difference]: Start difference. First operand has 2210 states, 1249 states have (on average 1.2185748598879103) internal successors, (1522), 1378 states have internal predecessors, (1522), 938 states have call successors, (938), 21 states have call predecessors, (938), 21 states have return successors, (938), 838 states have call predecessors, (938), 938 states have call successors, (938) Second operand has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:50:21,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:21,419 INFO L93 Difference]: Finished difference Result 4415 states and 7708 transitions. [2024-11-18 14:50:21,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:50:21,422 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1336 [2024-11-18 14:50:21,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:21,464 INFO L225 Difference]: With dead ends: 4415 [2024-11-18 14:50:21,464 INFO L226 Difference]: Without dead ends: 2205 [2024-11-18 14:50:21,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1337 GetRequests, 1337 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 14:50:21,495 INFO L432 NwaCegarLoop]: 3395 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, 3395 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 14:50:21,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3395 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:50:21,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2024-11-18 14:50:22,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2205. [2024-11-18 14:50:22,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1245 states have (on average 1.216867469879518) internal successors, (1515), 1374 states have internal predecessors, (1515), 938 states have call successors, (938), 21 states have call predecessors, (938), 21 states have return successors, (937), 837 states have call predecessors, (937), 937 states have call successors, (937) [2024-11-18 14:50:22,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3390 transitions. [2024-11-18 14:50:22,437 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3390 transitions. Word has length 1336 [2024-11-18 14:50:22,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:22,438 INFO L471 AbstractCegarLoop]: Abstraction has 2205 states and 3390 transitions. [2024-11-18 14:50:22,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:50:22,439 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3390 transitions. [2024-11-18 14:50:22,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2024-11-18 14:50:22,494 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:22,495 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:22,527 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 14:50:22,696 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 14:50:22,697 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:22,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:22,698 INFO L85 PathProgramCache]: Analyzing trace with hash 1924386766, now seen corresponding path program 1 times [2024-11-18 14:50:22,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:22,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750546736] [2024-11-18 14:50:22,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:22,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:24,942 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86944 trivial. 0 not checked. [2024-11-18 14:50:24,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:24,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750546736] [2024-11-18 14:50:24,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750546736] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:24,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:24,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:50:24,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46656859] [2024-11-18 14:50:24,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:24,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:50:24,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:24,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:50:24,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:50:24,952 INFO L87 Difference]: Start difference. First operand 2205 states and 3390 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:50:25,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:25,112 INFO L93 Difference]: Finished difference Result 3837 states and 5938 transitions. [2024-11-18 14:50:25,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:50:25,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1336 [2024-11-18 14:50:25,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:25,147 INFO L225 Difference]: With dead ends: 3837 [2024-11-18 14:50:25,147 INFO L226 Difference]: Without dead ends: 2205 [2024-11-18 14:50:25,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:50:25,165 INFO L432 NwaCegarLoop]: 3388 mSDtfsCounter, 0 mSDsluCounter, 3378 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6766 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:25,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6766 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:50:25,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2205 states. [2024-11-18 14:50:25,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2205 to 2205. [2024-11-18 14:50:25,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2205 states, 1245 states have (on average 1.2160642570281124) internal successors, (1514), 1374 states have internal predecessors, (1514), 938 states have call successors, (938), 21 states have call predecessors, (938), 21 states have return successors, (937), 837 states have call predecessors, (937), 937 states have call successors, (937) [2024-11-18 14:50:26,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2205 states to 2205 states and 3389 transitions. [2024-11-18 14:50:26,024 INFO L78 Accepts]: Start accepts. Automaton has 2205 states and 3389 transitions. Word has length 1336 [2024-11-18 14:50:26,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:26,030 INFO L471 AbstractCegarLoop]: Abstraction has 2205 states and 3389 transitions. [2024-11-18 14:50:26,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-18 14:50:26,031 INFO L276 IsEmpty]: Start isEmpty. Operand 2205 states and 3389 transitions. [2024-11-18 14:50:26,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1345 [2024-11-18 14:50:26,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:26,046 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:26,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:50:26,047 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:26,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:26,049 INFO L85 PathProgramCache]: Analyzing trace with hash -109172398, now seen corresponding path program 1 times [2024-11-18 14:50:26,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:26,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816855305] [2024-11-18 14:50:26,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:26,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:27,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-18 14:50:30,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:30,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816855305] [2024-11-18 14:50:30,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816855305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:30,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:30,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:50:30,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222478040] [2024-11-18 14:50:30,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:30,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:50:30,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:30,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:50:30,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:50:30,542 INFO L87 Difference]: Start difference. First operand 2205 states and 3389 transitions. Second operand has 5 states, 4 states have (on average 72.75) internal successors, (291), 5 states have internal predecessors, (291), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2024-11-18 14:50:35,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:35,373 INFO L93 Difference]: Finished difference Result 4122 states and 6350 transitions. [2024-11-18 14:50:35,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:50:35,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 72.75) internal successors, (291), 5 states have internal predecessors, (291), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) Word has length 1344 [2024-11-18 14:50:35,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:35,399 INFO L225 Difference]: With dead ends: 4122 [2024-11-18 14:50:35,399 INFO L226 Difference]: Without dead ends: 2490 [2024-11-18 14:50:35,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:35,412 INFO L432 NwaCegarLoop]: 3761 mSDtfsCounter, 4753 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 2118 mSolverCounterSat, 1144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4753 SdHoareTripleChecker+Valid, 5484 SdHoareTripleChecker+Invalid, 3262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1144 IncrementalHoareTripleChecker+Valid, 2118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:35,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4753 Valid, 5484 Invalid, 3262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1144 Valid, 2118 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-18 14:50:35,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2490 states. [2024-11-18 14:50:35,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2490 to 2488. [2024-11-18 14:50:35,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 1453 states have (on average 1.2339986235375087) internal successors, (1793), 1582 states have internal predecessors, (1793), 1004 states have call successors, (1004), 30 states have call predecessors, (1004), 30 states have return successors, (1003), 903 states have call predecessors, (1003), 1003 states have call successors, (1003) [2024-11-18 14:50:35,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3800 transitions. [2024-11-18 14:50:35,803 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3800 transitions. Word has length 1344 [2024-11-18 14:50:35,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:35,805 INFO L471 AbstractCegarLoop]: Abstraction has 2488 states and 3800 transitions. [2024-11-18 14:50:35,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 72.75) internal successors, (291), 5 states have internal predecessors, (291), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2024-11-18 14:50:35,805 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3800 transitions. [2024-11-18 14:50:35,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1349 [2024-11-18 14:50:35,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:35,821 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:35,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:50:35,821 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:35,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:35,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1435886423, now seen corresponding path program 1 times [2024-11-18 14:50:35,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:35,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125532596] [2024-11-18 14:50:35,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:35,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:36,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:38,293 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-18 14:50:38,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:38,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125532596] [2024-11-18 14:50:38,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125532596] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:38,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:38,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:50:38,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163886807] [2024-11-18 14:50:38,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:38,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:50:38,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:38,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:50:38,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:50:38,304 INFO L87 Difference]: Start difference. First operand 2488 states and 3800 transitions. Second operand has 5 states, 4 states have (on average 73.25) internal successors, (293), 5 states have internal predecessors, (293), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2024-11-18 14:50:42,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:42,824 INFO L93 Difference]: Finished difference Result 4401 states and 6754 transitions. [2024-11-18 14:50:42,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:50:42,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 73.25) internal successors, (293), 5 states have internal predecessors, (293), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) Word has length 1348 [2024-11-18 14:50:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:42,854 INFO L225 Difference]: With dead ends: 4401 [2024-11-18 14:50:42,854 INFO L226 Difference]: Without dead ends: 2486 [2024-11-18 14:50:42,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:42,872 INFO L432 NwaCegarLoop]: 3754 mSDtfsCounter, 4742 mSDsluCounter, 1721 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 1145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4742 SdHoareTripleChecker+Valid, 5475 SdHoareTripleChecker+Invalid, 3256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1145 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:42,872 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4742 Valid, 5475 Invalid, 3256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1145 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-18 14:50:42,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2024-11-18 14:50:43,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2484. [2024-11-18 14:50:43,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 1451 states have (on average 1.2329427980702963) internal successors, (1789), 1580 states have internal predecessors, (1789), 1002 states have call successors, (1002), 30 states have call predecessors, (1002), 30 states have return successors, (1001), 901 states have call predecessors, (1001), 1001 states have call successors, (1001) [2024-11-18 14:50:43,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3792 transitions. [2024-11-18 14:50:43,216 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3792 transitions. Word has length 1348 [2024-11-18 14:50:43,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:43,218 INFO L471 AbstractCegarLoop]: Abstraction has 2484 states and 3792 transitions. [2024-11-18 14:50:43,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 73.25) internal successors, (293), 5 states have internal predecessors, (293), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2024-11-18 14:50:43,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3792 transitions. [2024-11-18 14:50:43,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1350 [2024-11-18 14:50:43,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:43,240 INFO L215 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:43,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:50:43,242 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:43,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:43,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1939862096, now seen corresponding path program 1 times [2024-11-18 14:50:43,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:43,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992308741] [2024-11-18 14:50:43,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:43,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:47,592 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-18 14:50:47,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:47,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992308741] [2024-11-18 14:50:47,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992308741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:47,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:47,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:50:47,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988947347] [2024-11-18 14:50:47,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:47,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:50:47,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:47,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:50:47,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:47,602 INFO L87 Difference]: Start difference. First operand 2484 states and 3792 transitions. Second operand has 6 states, 6 states have (on average 49.0) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2024-11-18 14:50:52,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:52,905 INFO L93 Difference]: Finished difference Result 4299 states and 6589 transitions. [2024-11-18 14:50:52,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:50:52,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) Word has length 1349 [2024-11-18 14:50:52,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:52,942 INFO L225 Difference]: With dead ends: 4299 [2024-11-18 14:50:52,942 INFO L226 Difference]: Without dead ends: 4276 [2024-11-18 14:50:52,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:50:52,945 INFO L432 NwaCegarLoop]: 3381 mSDtfsCounter, 5256 mSDsluCounter, 7978 mSDsCounter, 0 mSdLazyCounter, 1265 mSolverCounterSat, 2540 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5365 SdHoareTripleChecker+Valid, 11359 SdHoareTripleChecker+Invalid, 3805 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2540 IncrementalHoareTripleChecker+Valid, 1265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:52,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5365 Valid, 11359 Invalid, 3805 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2540 Valid, 1265 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-18 14:50:52,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4276 states. [2024-11-18 14:50:53,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4276 to 4251. [2024-11-18 14:50:53,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4251 states, 2495 states have (on average 1.2464929859719438) internal successors, (3110), 2746 states have internal predecessors, (3110), 1699 states have call successors, (1699), 55 states have call predecessors, (1699), 56 states have return successors, (1721), 1502 states have call predecessors, (1721), 1698 states have call successors, (1721) [2024-11-18 14:50:53,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4251 states to 4251 states and 6530 transitions. [2024-11-18 14:50:53,671 INFO L78 Accepts]: Start accepts. Automaton has 4251 states and 6530 transitions. Word has length 1349 [2024-11-18 14:50:53,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:50:53,674 INFO L471 AbstractCegarLoop]: Abstraction has 4251 states and 6530 transitions. [2024-11-18 14:50:53,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2024-11-18 14:50:53,675 INFO L276 IsEmpty]: Start isEmpty. Operand 4251 states and 6530 transitions. [2024-11-18 14:50:53,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1401 [2024-11-18 14:50:53,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:50:53,693 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:53,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:50:53,694 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:50:53,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:50:53,695 INFO L85 PathProgramCache]: Analyzing trace with hash -2035781757, now seen corresponding path program 1 times [2024-11-18 14:50:53,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:50:53,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748517486] [2024-11-18 14:50:53,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:50:53,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:50:54,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:50:56,392 INFO L134 CoverageAnalysis]: Checked inductivity of 87792 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 87790 trivial. 0 not checked. [2024-11-18 14:50:56,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:50:56,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748517486] [2024-11-18 14:50:56,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748517486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:50:56,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:50:56,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:50:56,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804942727] [2024-11-18 14:50:56,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:50:56,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:50:56,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:50:56,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:50:56,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:50:56,397 INFO L87 Difference]: Start difference. First operand 4251 states and 6530 transitions. Second operand has 5 states, 4 states have (on average 81.75) internal successors, (327), 5 states have internal predecessors, (327), 4 states have call successors, (220), 2 states have call predecessors, (220), 2 states have return successors, (219), 3 states have call predecessors, (219), 4 states have call successors, (219) [2024-11-18 14:50:59,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:50:59,862 INFO L93 Difference]: Finished difference Result 8395 states and 12874 transitions. [2024-11-18 14:50:59,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:50:59,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 81.75) internal successors, (327), 5 states have internal predecessors, (327), 4 states have call successors, (220), 2 states have call predecessors, (220), 2 states have return successors, (219), 3 states have call predecessors, (219), 4 states have call successors, (219) Word has length 1400 [2024-11-18 14:50:59,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:50:59,922 INFO L225 Difference]: With dead ends: 8395 [2024-11-18 14:50:59,923 INFO L226 Difference]: Without dead ends: 4779 [2024-11-18 14:50:59,947 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:50:59,948 INFO L432 NwaCegarLoop]: 3742 mSDtfsCounter, 5073 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 1685 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5073 SdHoareTripleChecker+Valid, 5455 SdHoareTripleChecker+Invalid, 3786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1685 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:50:59,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5073 Valid, 5455 Invalid, 3786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1685 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-18 14:50:59,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4779 states. [2024-11-18 14:51:00,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4779 to 4777. [2024-11-18 14:51:00,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4777 states, 2883 states have (on average 1.259105098855359) internal successors, (3630), 3134 states have internal predecessors, (3630), 1823 states have call successors, (1823), 69 states have call predecessors, (1823), 70 states have return successors, (1845), 1626 states have call predecessors, (1845), 1822 states have call successors, (1845) [2024-11-18 14:51:00,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4777 states to 4777 states and 7298 transitions. [2024-11-18 14:51:00,783 INFO L78 Accepts]: Start accepts. Automaton has 4777 states and 7298 transitions. Word has length 1400 [2024-11-18 14:51:00,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:51:00,784 INFO L471 AbstractCegarLoop]: Abstraction has 4777 states and 7298 transitions. [2024-11-18 14:51:00,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 81.75) internal successors, (327), 5 states have internal predecessors, (327), 4 states have call successors, (220), 2 states have call predecessors, (220), 2 states have return successors, (219), 3 states have call predecessors, (219), 4 states have call successors, (219) [2024-11-18 14:51:00,785 INFO L276 IsEmpty]: Start isEmpty. Operand 4777 states and 7298 transitions. [2024-11-18 14:51:00,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1405 [2024-11-18 14:51:00,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:51:00,808 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:00,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:51:00,808 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:51:00,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:51:00,809 INFO L85 PathProgramCache]: Analyzing trace with hash 500920397, now seen corresponding path program 1 times [2024-11-18 14:51:00,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:51:00,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740731701] [2024-11-18 14:51:00,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:51:00,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:51:01,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:51:02,688 INFO L134 CoverageAnalysis]: Checked inductivity of 87792 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 87784 trivial. 0 not checked. [2024-11-18 14:51:02,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:51:02,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740731701] [2024-11-18 14:51:02,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740731701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:51:02,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:51:02,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:51:02,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247716764] [2024-11-18 14:51:02,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:51:02,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:51:02,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:51:02,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:51:02,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:51:02,695 INFO L87 Difference]: Start difference. First operand 4777 states and 7298 transitions. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (221), 2 states have call predecessors, (221), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2024-11-18 14:51:06,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:51:06,561 INFO L93 Difference]: Finished difference Result 8903 states and 13617 transitions. [2024-11-18 14:51:06,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 14:51:06,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (221), 2 states have call predecessors, (221), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) Word has length 1404 [2024-11-18 14:51:06,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:51:06,608 INFO L225 Difference]: With dead ends: 8903 [2024-11-18 14:51:06,609 INFO L226 Difference]: Without dead ends: 4761 [2024-11-18 14:51:06,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:51:06,635 INFO L432 NwaCegarLoop]: 3769 mSDtfsCounter, 4591 mSDsluCounter, 2522 mSDsCounter, 0 mSdLazyCounter, 3010 mSolverCounterSat, 896 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4591 SdHoareTripleChecker+Valid, 6291 SdHoareTripleChecker+Invalid, 3906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 896 IncrementalHoareTripleChecker+Valid, 3010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-18 14:51:06,636 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4591 Valid, 6291 Invalid, 3906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [896 Valid, 3010 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-18 14:51:06,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4761 states. [2024-11-18 14:51:07,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4761 to 4761. [2024-11-18 14:51:07,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4761 states, 2873 states have (on average 1.2572224155934564) internal successors, (3612), 3124 states have internal predecessors, (3612), 1817 states have call successors, (1817), 69 states have call predecessors, (1817), 70 states have return successors, (1839), 1620 states have call predecessors, (1839), 1816 states have call successors, (1839) [2024-11-18 14:51:07,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4761 states to 4761 states and 7268 transitions. [2024-11-18 14:51:07,606 INFO L78 Accepts]: Start accepts. Automaton has 4761 states and 7268 transitions. Word has length 1404 [2024-11-18 14:51:07,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:51:07,608 INFO L471 AbstractCegarLoop]: Abstraction has 4761 states and 7268 transitions. [2024-11-18 14:51:07,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (221), 2 states have call predecessors, (221), 4 states have return successors, (220), 3 states have call predecessors, (220), 3 states have call successors, (220) [2024-11-18 14:51:07,609 INFO L276 IsEmpty]: Start isEmpty. Operand 4761 states and 7268 transitions. [2024-11-18 14:51:07,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1406 [2024-11-18 14:51:07,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:51:07,646 INFO L215 NwaCegarLoop]: trace histogram [210, 210, 210, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:07,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:51:07,647 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:51:07,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:51:07,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1293527507, now seen corresponding path program 1 times [2024-11-18 14:51:07,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:51:07,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562460997] [2024-11-18 14:51:07,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:51:07,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms