./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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.2.M4-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 14:58:25,906 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 14:58:25,951 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 14:58:25,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 14:58:25,960 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 14:58:25,985 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 14:58:25,986 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 14:58:25,986 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 14:58:25,986 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 14:58:25,986 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 14:58:25,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 14:58:25,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 14:58:25,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 14:58:25,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 14:58:25,988 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 14:58:25,988 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 14:58:25,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 14:58:25,988 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 14:58:25,988 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 14:58:25,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 14:58:25,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 14:58:25,989 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 14:58:25,989 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 14:58:25,989 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 14:58:25,989 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 14:58:25,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 14:58:25,989 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 14:58:25,989 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 14:58:25,989 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 14:58:25,989 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 14:58:25,990 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 14:58:25,990 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 14:58:25,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:58:25,990 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 14:58:25,990 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 14:58:25,990 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 14:58:25,990 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 14:58:25,990 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 14:58:25,990 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 14:58:25,991 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 14:58:25,991 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 14:58:25,991 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 14:58:25,991 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 14:58:25,991 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /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 -> 20976b2d8a648a632a55cb7b6a072d8c835d658a3592a366af91723667ead694 [2025-03-03 14:58:26,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 14:58:26,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 14:58:26,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 14:58:26,248 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 14:58:26,248 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 14:58:26,249 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2025-03-03 14:58:27,419 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d280e77/eeceec7c64644cbab648f39153a5383a/FLAG504f90297 [2025-03-03 14:58:27,753 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 14:58:27,756 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M4-2.c [2025-03-03 14:58:27,779 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d280e77/eeceec7c64644cbab648f39153a5383a/FLAG504f90297 [2025-03-03 14:58:27,996 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01d280e77/eeceec7c64644cbab648f39153a5383a [2025-03-03 14:58:27,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 14:58:27,999 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 14:58:28,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 14:58:28,000 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 14:58:28,003 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 14:58:28,003 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:58:27" (1/1) ... [2025-03-03 14:58:28,004 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca44fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28, skipping insertion in model container [2025-03-03 14:58:28,004 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:58:27" (1/1) ... [2025-03-03 14:58:28,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 14:58:28,211 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.2.M4-2.c[1807,1820] [2025-03-03 14:58:28,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:58:28,561 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 14:58:28,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.ok2.i","-S") [39] [2025-03-03 14:58:28,575 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.2.M4-2.c[1807,1820] [2025-03-03 14:58:28,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:58:28,816 INFO L204 MainTranslator]: Completed translation [2025-03-03 14:58:28,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28 WrapperNode [2025-03-03 14:58:28,817 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 14:58:28,818 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 14:58:28,818 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 14:58:28,818 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 14:58:28,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:28,895 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:29,151 INFO L138 Inliner]: procedures = 70, calls = 5777, calls flagged for inlining = 25, calls inlined = 25, statements flattened = 12724 [2025-03-03 14:58:29,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 14:58:29,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 14:58:29,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 14:58:29,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 14:58:29,159 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:29,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:29,209 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:29,281 INFO L175 MemorySlicer]: Split 4205 memory accesses to 27 slices as follows [2, 2, 8, 379, 455, 4, 113, 113, 186, 203, 186, 203, 186, 203, 186, 203, 186, 203, 8, 186, 203, 186, 203, 186, 203, 2, 7]. 11 percent of accesses are in the largest equivalence class. The 544 initializations are split as follows [0, 2, 0, 27, 27, 0, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 0, 27, 27, 27, 27, 27, 27, 0, 2]. The 577 writes are split as follows [1, 0, 4, 27, 27, 0, 27, 27, 31, 26, 31, 26, 31, 26, 31, 26, 31, 26, 4, 31, 26, 31, 26, 31, 26, 1, 3]. [2025-03-03 14:58:29,281 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:29,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:29,508 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:29,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:29,543 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:29,563 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:29,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 14:58:29,676 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 14:58:29,677 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 14:58:29,677 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 14:58:29,678 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (1/1) ... [2025-03-03 14:58:29,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:58:29,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:58:29,731 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) [2025-03-03 14:58:29,739 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 [2025-03-03 14:58:29,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 14:58:29,767 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_trans [2025-03-03 14:58:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_trans [2025-03-03 14:58:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2025-03-03 14:58:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2025-03-03 14:58:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2025-03-03 14:58:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2025-03-03 14:58:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2025-03-03 14:58:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2025-03-03 14:58:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 14:58:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2025-03-03 14:58:29,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2025-03-03 14:58:29,768 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2025-03-03 14:58:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2025-03-03 14:58:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read___startrek_current_priority [2025-03-03 14:58:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read___startrek_current_priority [2025-03-03 14:58:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2025-03-03 14:58:29,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2025-03-03 14:58:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-03 14:58:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-03 14:58:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-03 14:58:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-03 14:58:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-03 14:58:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-03 14:58:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-03 14:58:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-03 14:58:29,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-03 14:58:29,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2025-03-03 14:58:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2025-03-03 14:58:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2025-03-03 14:58:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write___startrek_current_priority [2025-03-03 14:58:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write___startrek_current_priority [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-03 14:58:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-03 14:58:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-03-03 14:58:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_hyperperiod [2025-03-03 14:58:29,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_hyperperiod [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-03 14:58:29,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2025-03-03 14:58:29,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2025-03-03 14:58:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2025-03-03 14:58:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2025-03-03 14:58:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2025-03-03 14:58:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-03-03 14:58:29,776 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-03 14:58:29,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 14:58:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2025-03-03 14:58:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2025-03-03 14:58:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2025-03-03 14:58:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2025-03-03 14:58:29,777 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2025-03-03 14:58:29,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2025-03-03 14:58:30,467 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 14:58:30,470 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 14:58:30,766 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L234: call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset);havoc OSEK_Task_ts1_~#pwm_l~0#1.base, OSEK_Task_ts1_~#pwm_l~0#1.offset;call ULTIMATE.dealloc(OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset);havoc OSEK_Task_ts1_~#pwm_r~0#1.base, OSEK_Task_ts1_~#pwm_r~0#1.offset; [2025-03-03 14:58:30,766 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L96: call ULTIMATE.dealloc(balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset);havoc balance_control_~#tmp~0#1.base, balance_control_~#tmp~0#1.offset;call ULTIMATE.dealloc(balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset);havoc balance_control_~#tmp_theta_0~0#1.base, balance_control_~#tmp_theta_0~0#1.offset; [2025-03-03 14:58:40,485 INFO L? ?]: Removed 503 outVars from TransFormulas that were not future-live. [2025-03-03 14:58:40,485 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 14:58:40,538 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 14:58:40,538 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 14:58:40,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:58:40 BoogieIcfgContainer [2025-03-03 14:58:40,539 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 14:58:40,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 14:58:40,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 14:58:40,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 14:58:40,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 02:58:27" (1/3) ... [2025-03-03 14:58:40,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad06af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:58:40, skipping insertion in model container [2025-03-03 14:58:40,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:58:28" (2/3) ... [2025-03-03 14:58:40,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ad06af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:58:40, skipping insertion in model container [2025-03-03 14:58:40,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:58:40" (3/3) ... [2025-03-03 14:58:40,546 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M4-2.c [2025-03-03 14:58:40,556 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 14:58:40,559 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_aso.2.M4-2.c that has 26 procedures, 3454 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 14:58:40,658 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 14:58:40,666 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;@5bea0ad6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 14:58:40,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 14:58:40,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 3454 states, 1919 states have (on average 1.1756122980719124) internal successors, (2256), 2049 states have internal predecessors, (2256), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1408 states have call predecessors, (1508), 1508 states have call successors, (1508) [2025-03-03 14:58:40,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2025-03-03 14:58:40,740 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:58:40,741 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:58:40,741 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:58:40,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:58:40,747 INFO L85 PathProgramCache]: Analyzing trace with hash 20013124, now seen corresponding path program 1 times [2025-03-03 14:58:40,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:58:40,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277475447] [2025-03-03 14:58:40,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:58:40,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:58:42,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-03-03 14:58:42,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-03-03 14:58:42,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:58:42,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:58:43,421 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-03-03 14:58:43,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:58:43,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277475447] [2025-03-03 14:58:43,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277475447] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:58:43,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92697683] [2025-03-03 14:58:43,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:58:43,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:58:43,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:58:43,426 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) [2025-03-03 14:58:43,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 14:58:45,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-03-03 14:58:45,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-03-03 14:58:45,764 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:58:45,764 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:58:45,787 INFO L256 TraceCheckSpWp]: Trace formula consists of 5933 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 14:58:45,814 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:58:45,890 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 87362 trivial. 0 not checked. [2025-03-03 14:58:45,890 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:58:45,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92697683] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:58:45,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:58:45,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2025-03-03 14:58:45,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543965667] [2025-03-03 14:58:45,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:58:45,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 14:58:45,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:58:45,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 14:58:45,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 14:58:45,924 INFO L87 Difference]: Start difference. First operand has 3454 states, 1919 states have (on average 1.1756122980719124) internal successors, (2256), 2049 states have internal predecessors, (2256), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1508), 1408 states have call predecessors, (1508), 1508 states have call successors, (1508) Second operand has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (214), 2 states have call predecessors, (214), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) [2025-03-03 14:58:46,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:58:46,227 INFO L93 Difference]: Finished difference Result 6903 states and 12018 transitions. [2025-03-03 14:58:46,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 14:58:46,230 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (214), 2 states have call predecessors, (214), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1378 [2025-03-03 14:58:46,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:58:46,281 INFO L225 Difference]: With dead ends: 6903 [2025-03-03 14:58:46,282 INFO L226 Difference]: Without dead ends: 3449 [2025-03-03 14:58:46,338 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1379 GetRequests, 1379 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 14:58:46,341 INFO L435 NwaCegarLoop]: 5270 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, 5270 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 [2025-03-03 14:58:46,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5270 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:58:46,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3449 states. [2025-03-03 14:58:47,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3449 to 3449. [2025-03-03 14:58:47,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3449 states, 1915 states have (on average 1.174934725848564) internal successors, (2250), 2045 states have internal predecessors, (2250), 1508 states have call successors, (1508), 25 states have call predecessors, (1508), 25 states have return successors, (1507), 1407 states have call predecessors, (1507), 1507 states have call successors, (1507) [2025-03-03 14:58:47,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3449 states to 3449 states and 5265 transitions. [2025-03-03 14:58:47,214 INFO L78 Accepts]: Start accepts. Automaton has 3449 states and 5265 transitions. Word has length 1378 [2025-03-03 14:58:47,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:58:47,215 INFO L471 AbstractCegarLoop]: Abstraction has 3449 states and 5265 transitions. [2025-03-03 14:58:47,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 163.5) internal successors, (327), 2 states have internal predecessors, (327), 2 states have call successors, (214), 2 states have call predecessors, (214), 1 states have return successors, (212), 1 states have call predecessors, (212), 2 states have call successors, (212) [2025-03-03 14:58:47,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3449 states and 5265 transitions. [2025-03-03 14:58:47,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1379 [2025-03-03 14:58:47,314 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:58:47,315 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:58:47,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 14:58:47,515 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 [2025-03-03 14:58:47,516 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:58:47,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:58:47,517 INFO L85 PathProgramCache]: Analyzing trace with hash -1290213920, now seen corresponding path program 1 times [2025-03-03 14:58:47,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:58:47,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528899214] [2025-03-03 14:58:47,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:58:47,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:58:48,744 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-03-03 14:58:49,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-03-03 14:58:49,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:58:49,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:58:50,258 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 624 proven. 3 refuted. 0 times theorem prover too weak. 87153 trivial. 0 not checked. [2025-03-03 14:58:50,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:58:50,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528899214] [2025-03-03 14:58:50,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528899214] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:58:50,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685212520] [2025-03-03 14:58:50,260 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:58:50,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:58:50,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:58:50,262 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:58:50,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 14:58:52,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1378 statements into 1 equivalence classes. [2025-03-03 14:58:52,713 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1378 of 1378 statements. [2025-03-03 14:58:52,713 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:58:52,713 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:58:52,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 5933 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-03 14:58:52,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:58:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 87780 backedges. 1460 proven. 0 refuted. 0 times theorem prover too weak. 86320 trivial. 0 not checked. [2025-03-03 14:58:52,820 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:58:52,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685212520] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:58:52,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:58:52,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2025-03-03 14:58:52,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958771303] [2025-03-03 14:58:52,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:58:52,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:58:52,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:58:52,824 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:58:52,824 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:58:52,824 INFO L87 Difference]: Start difference. First operand 3449 states and 5265 transitions. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 2 states have call successors, (214), 2 states have call predecessors, (214), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2025-03-03 14:59:00,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:59:00,557 INFO L93 Difference]: Finished difference Result 6893 states and 10553 transitions. [2025-03-03 14:59:00,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:59:00,559 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 2 states have call successors, (214), 2 states have call predecessors, (214), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) Word has length 1378 [2025-03-03 14:59:00,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:59:00,589 INFO L225 Difference]: With dead ends: 6893 [2025-03-03 14:59:00,589 INFO L226 Difference]: Without dead ends: 3447 [2025-03-03 14:59:00,617 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1382 GetRequests, 1379 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:59:00,618 INFO L435 NwaCegarLoop]: 3897 mSDtfsCounter, 1 mSDsluCounter, 5061 mSDsCounter, 0 mSdLazyCounter, 6822 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 8958 SdHoareTripleChecker+Invalid, 6826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 6822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2025-03-03 14:59:00,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 8958 Invalid, 6826 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 6822 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2025-03-03 14:59:00,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3447 states. [2025-03-03 14:59:01,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3447 to 3445. [2025-03-03 14:59:01,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 1913 states have (on average 1.1740721380031365) internal successors, (2246), 2043 states have internal predecessors, (2246), 1506 states have call successors, (1506), 25 states have call predecessors, (1506), 25 states have return successors, (1505), 1405 states have call predecessors, (1505), 1505 states have call successors, (1505) [2025-03-03 14:59:01,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 5257 transitions. [2025-03-03 14:59:01,388 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 5257 transitions. Word has length 1378 [2025-03-03 14:59:01,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:59:01,394 INFO L471 AbstractCegarLoop]: Abstraction has 3445 states and 5257 transitions. [2025-03-03 14:59:01,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 2 states have call successors, (214), 2 states have call predecessors, (214), 3 states have return successors, (212), 2 states have call predecessors, (212), 2 states have call successors, (212) [2025-03-03 14:59:01,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 5257 transitions. [2025-03-03 14:59:01,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1416 [2025-03-03 14:59:01,409 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:59:01,410 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:59:01,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-03 14:59:01,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-03-03 14:59:01,611 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:59:01,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:59:01,611 INFO L85 PathProgramCache]: Analyzing trace with hash -54455656, now seen corresponding path program 1 times [2025-03-03 14:59:01,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:59:01,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589781033] [2025-03-03 14:59:01,612 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:59:01,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:59:02,770 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1415 statements into 1 equivalence classes. [2025-03-03 14:59:03,052 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1415 of 1415 statements. [2025-03-03 14:59:03,053 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:59:03,053 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:59:03,612 INFO L134 CoverageAnalysis]: Checked inductivity of 86951 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86951 trivial. 0 not checked. [2025-03-03 14:59:03,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:59:03,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589781033] [2025-03-03 14:59:03,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589781033] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:59:03,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:59:03,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 14:59:03,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568203066] [2025-03-03 14:59:03,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:59:03,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:59:03,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:59:03,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:59:03,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 14:59:03,616 INFO L87 Difference]: Start difference. First operand 3445 states and 5257 transitions. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) [2025-03-03 14:59:03,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:59:03,748 INFO L93 Difference]: Finished difference Result 6885 states and 10535 transitions. [2025-03-03 14:59:03,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:59:03,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) Word has length 1415 [2025-03-03 14:59:03,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:59:03,787 INFO L225 Difference]: With dead ends: 6885 [2025-03-03 14:59:03,788 INFO L226 Difference]: Without dead ends: 3445 [2025-03-03 14:59:03,811 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 14:59:03,813 INFO L435 NwaCegarLoop]: 5255 mSDtfsCounter, 0 mSDsluCounter, 5245 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10500 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 [2025-03-03 14:59:03,814 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10500 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:59:03,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3445 states. [2025-03-03 14:59:04,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3445 to 3445. [2025-03-03 14:59:04,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3445 states, 1913 states have (on average 1.173549398849974) internal successors, (2245), 2043 states have internal predecessors, (2245), 1506 states have call successors, (1506), 25 states have call predecessors, (1506), 25 states have return successors, (1505), 1405 states have call predecessors, (1505), 1505 states have call successors, (1505) [2025-03-03 14:59:04,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3445 states to 3445 states and 5256 transitions. [2025-03-03 14:59:04,639 INFO L78 Accepts]: Start accepts. Automaton has 3445 states and 5256 transitions. Word has length 1415 [2025-03-03 14:59:04,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:59:04,644 INFO L471 AbstractCegarLoop]: Abstraction has 3445 states and 5256 transitions. [2025-03-03 14:59:04,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 2 states have call successors, (216), 2 states have call predecessors, (216), 2 states have return successors, (214), 2 states have call predecessors, (214), 2 states have call successors, (214) [2025-03-03 14:59:04,648 INFO L276 IsEmpty]: Start isEmpty. Operand 3445 states and 5256 transitions. [2025-03-03 14:59:04,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1424 [2025-03-03 14:59:04,662 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:59:04,663 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:59:04,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 14:59:04,663 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:59:04,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:59:04,664 INFO L85 PathProgramCache]: Analyzing trace with hash 71419223, now seen corresponding path program 1 times [2025-03-03 14:59:04,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:59:04,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794870807] [2025-03-03 14:59:04,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:59:04,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:59:06,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1423 statements into 1 equivalence classes. [2025-03-03 14:59:06,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1423 of 1423 statements. [2025-03-03 14:59:06,419 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:59:06,419 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:59:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86954 trivial. 0 not checked. [2025-03-03 14:59:08,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:59:08,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794870807] [2025-03-03 14:59:08,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794870807] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:59:08,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:59:08,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-03 14:59:08,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686139924] [2025-03-03 14:59:08,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:59:08,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:59:08,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:59:08,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:59:08,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:59:08,988 INFO L87 Difference]: Start difference. First operand 3445 states and 5256 transitions. Second operand has 5 states, 4 states have (on average 89.25) internal successors, (357), 5 states have internal predecessors, (357), 4 states have call successors, (218), 2 states have call predecessors, (218), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2025-03-03 14:59:17,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:59:17,323 INFO L93 Difference]: Finished difference Result 7898 states and 12058 transitions. [2025-03-03 14:59:17,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:59:17,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 89.25) internal successors, (357), 5 states have internal predecessors, (357), 4 states have call successors, (218), 2 states have call predecessors, (218), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) Word has length 1423 [2025-03-03 14:59:17,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:59:17,373 INFO L225 Difference]: With dead ends: 7898 [2025-03-03 14:59:17,373 INFO L226 Difference]: Without dead ends: 4458 [2025-03-03 14:59:17,397 INFO L434 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 [2025-03-03 14:59:17,399 INFO L435 NwaCegarLoop]: 6709 mSDtfsCounter, 6747 mSDsluCounter, 4528 mSDsCounter, 0 mSdLazyCounter, 6047 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6747 SdHoareTripleChecker+Valid, 11237 SdHoareTripleChecker+Invalid, 6075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 6047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2025-03-03 14:59:17,400 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6747 Valid, 11237 Invalid, 6075 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 6047 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2025-03-03 14:59:17,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4458 states. [2025-03-03 14:59:18,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4458 to 4455. [2025-03-03 14:59:18,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4455 states, 2551 states have (on average 1.1920815366522932) internal successors, (3041), 2681 states have internal predecessors, (3041), 1868 states have call successors, (1868), 36 states have call predecessors, (1868), 35 states have return successors, (1867), 1766 states have call predecessors, (1867), 1867 states have call successors, (1867) [2025-03-03 14:59:18,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4455 states to 4455 states and 6776 transitions. [2025-03-03 14:59:18,366 INFO L78 Accepts]: Start accepts. Automaton has 4455 states and 6776 transitions. Word has length 1423 [2025-03-03 14:59:18,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:59:18,368 INFO L471 AbstractCegarLoop]: Abstraction has 4455 states and 6776 transitions. [2025-03-03 14:59:18,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 89.25) internal successors, (357), 5 states have internal predecessors, (357), 4 states have call successors, (218), 2 states have call predecessors, (218), 2 states have return successors, (216), 3 states have call predecessors, (216), 4 states have call successors, (216) [2025-03-03 14:59:18,369 INFO L276 IsEmpty]: Start isEmpty. Operand 4455 states and 6776 transitions. [2025-03-03 14:59:18,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1428 [2025-03-03 14:59:18,385 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:59:18,385 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:59:18,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 14:59:18,386 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:59:18,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:59:18,387 INFO L85 PathProgramCache]: Analyzing trace with hash 413938304, now seen corresponding path program 1 times [2025-03-03 14:59:18,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:59:18,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518621329] [2025-03-03 14:59:18,387 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:59:18,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:59:19,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1427 statements into 1 equivalence classes. [2025-03-03 14:59:19,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1427 of 1427 statements. [2025-03-03 14:59:19,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:59:19,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:59:20,817 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 86948 trivial. 0 not checked. [2025-03-03 14:59:20,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:59:20,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518621329] [2025-03-03 14:59:20,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518621329] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:59:20,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350503510] [2025-03-03 14:59:20,818 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:59:20,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:59:20,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:59:20,821 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:59:20,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-03 14:59:22,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1427 statements into 1 equivalence classes. [2025-03-03 14:59:23,422 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1427 of 1427 statements. [2025-03-03 14:59:23,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:59:23,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:59:23,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 6110 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 14:59:23,475 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:59:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 834 proven. 0 refuted. 0 times theorem prover too weak. 86120 trivial. 0 not checked. [2025-03-03 14:59:23,600 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:59:23,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1350503510] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:59:23,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:59:23,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-03 14:59:23,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139113117] [2025-03-03 14:59:23,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:59:23,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:59:23,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:59:23,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:59:23,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:59:23,604 INFO L87 Difference]: Start difference. First operand 4455 states and 6776 transitions. Second operand has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 3 states have call successors, (219), 3 states have call predecessors, (219), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) [2025-03-03 14:59:33,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:59:33,253 INFO L93 Difference]: Finished difference Result 11395 states and 17371 transitions. [2025-03-03 14:59:33,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:59:33,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 3 states have call successors, (219), 3 states have call predecessors, (219), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) Word has length 1427 [2025-03-03 14:59:33,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:59:33,322 INFO L225 Difference]: With dead ends: 11395 [2025-03-03 14:59:33,323 INFO L226 Difference]: Without dead ends: 7650 [2025-03-03 14:59:33,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1432 GetRequests, 1426 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:59:33,357 INFO L435 NwaCegarLoop]: 7678 mSDtfsCounter, 5161 mSDsluCounter, 11231 mSDsCounter, 0 mSdLazyCounter, 6291 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5161 SdHoareTripleChecker+Valid, 18909 SdHoareTripleChecker+Invalid, 6293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:59:33,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5161 Valid, 18909 Invalid, 6293 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 6291 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2025-03-03 14:59:33,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7650 states. [2025-03-03 14:59:35,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7650 to 7620. [2025-03-03 14:59:35,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7620 states, 4371 states have (on average 1.1935483870967742) internal successors, (5217), 4604 states have internal predecessors, (5217), 3182 states have call successors, (3182), 63 states have call predecessors, (3182), 66 states have return successors, (3213), 3007 states have call predecessors, (3213), 3180 states have call successors, (3213) [2025-03-03 14:59:35,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7620 states to 7620 states and 11612 transitions. [2025-03-03 14:59:35,511 INFO L78 Accepts]: Start accepts. Automaton has 7620 states and 11612 transitions. Word has length 1427 [2025-03-03 14:59:35,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:59:35,512 INFO L471 AbstractCegarLoop]: Abstraction has 7620 states and 11612 transitions. [2025-03-03 14:59:35,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.8) internal successors, (364), 5 states have internal predecessors, (364), 3 states have call successors, (219), 3 states have call predecessors, (219), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217) [2025-03-03 14:59:35,513 INFO L276 IsEmpty]: Start isEmpty. Operand 7620 states and 11612 transitions. [2025-03-03 14:59:35,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1429 [2025-03-03 14:59:35,605 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:59:35,606 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:59:35,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-03 14:59:35,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:59:35,807 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:59:35,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:59:35,808 INFO L85 PathProgramCache]: Analyzing trace with hash 482367535, now seen corresponding path program 1 times [2025-03-03 14:59:35,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:59:35,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664382577] [2025-03-03 14:59:35,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:59:35,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:59:36,874 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1428 statements into 1 equivalence classes. [2025-03-03 14:59:36,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1428 of 1428 statements. [2025-03-03 14:59:36,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:59:36,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:59:38,142 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86949 trivial. 0 not checked. [2025-03-03 14:59:38,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:59:38,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664382577] [2025-03-03 14:59:38,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664382577] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:59:38,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024439942] [2025-03-03 14:59:38,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:59:38,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:59:38,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:59:38,145 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:59:38,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-03 14:59:40,040 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1428 statements into 1 equivalence classes. [2025-03-03 14:59:40,493 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1428 of 1428 statements. [2025-03-03 14:59:40,493 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:59:40,493 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:59:40,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 6112 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-03 14:59:40,533 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:59:40,651 INFO L134 CoverageAnalysis]: Checked inductivity of 86954 backedges. 835 proven. 0 refuted. 0 times theorem prover too weak. 86119 trivial. 0 not checked. [2025-03-03 14:59:40,651 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:59:40,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024439942] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:59:40,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:59:40,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2025-03-03 14:59:40,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758231346] [2025-03-03 14:59:40,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:59:40,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:59:40,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:59:40,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:59:40,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:59:40,653 INFO L87 Difference]: Start difference. First operand 7620 states and 11612 transitions. Second operand has 5 states, 5 states have (on average 73.2) internal successors, (366), 5 states have internal predecessors, (366), 3 states have call successors, (219), 3 states have call predecessors, (219), 3 states have return successors, (217), 3 states have call predecessors, (217), 3 states have call successors, (217)