./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed 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/loop-industry-pattern/aiob_4.c.v+nlh-reducer.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 e486f0f9d7d5faf0af2c33128bdcb8eeb95bb04afff03e23e86c60ceb8da8466 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 04:44:10,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 04:44:10,770 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 04:44:10,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 04:44:10,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 04:44:10,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 04:44:10,794 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 04:44:10,794 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 04:44:10,794 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 04:44:10,794 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 04:44:10,794 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 04:44:10,794 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 04:44:10,795 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 04:44:10,795 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 04:44:10,795 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 04:44:10,795 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 04:44:10,795 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 04:44:10,795 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 04:44:10,795 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 04:44:10,795 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 04:44:10,795 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 04:44:10,795 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 04:44:10,796 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 04:44:10,796 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 04:44:10,796 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 04:44:10,796 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 04:44:10,796 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 04:44:10,796 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 04:44:10,796 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 04:44:10,796 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 04:44:10,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 04:44:10,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 04:44:10,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 04:44:10,797 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 04:44:10,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 04:44:10,797 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 04:44:10,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 04:44:10,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 04:44:10,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 04:44:10,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 04:44:10,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 04:44:10,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 04:44:10,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 04:44:10,797 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 -> e486f0f9d7d5faf0af2c33128bdcb8eeb95bb04afff03e23e86c60ceb8da8466 [2025-03-08 04:44:11,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 04:44:11,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 04:44:11,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 04:44:11,053 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 04:44:11,053 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 04:44:11,054 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c [2025-03-08 04:44:12,217 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d68ea25d/f8a7bd5a147042c39fd9f8ce5a93d01f/FLAGa048b82a2 [2025-03-08 04:44:12,495 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 04:44:12,496 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c [2025-03-08 04:44:12,503 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d68ea25d/f8a7bd5a147042c39fd9f8ce5a93d01f/FLAGa048b82a2 [2025-03-08 04:44:12,777 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d68ea25d/f8a7bd5a147042c39fd9f8ce5a93d01f [2025-03-08 04:44:12,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 04:44:12,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 04:44:12,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 04:44:12,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 04:44:12,785 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 04:44:12,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 04:44:12" (1/1) ... [2025-03-08 04:44:12,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c621b36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:12, skipping insertion in model container [2025-03-08 04:44:12,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 04:44:12" (1/1) ... [2025-03-08 04:44:12,827 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 04:44:13,082 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/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c[38357,38370] [2025-03-08 04:44:13,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 04:44:13,107 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 04:44:13,207 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/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c[38357,38370] [2025-03-08 04:44:13,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 04:44:13,230 INFO L204 MainTranslator]: Completed translation [2025-03-08 04:44:13,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13 WrapperNode [2025-03-08 04:44:13,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 04:44:13,231 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 04:44:13,231 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 04:44:13,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 04:44:13,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,251 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,288 INFO L138 Inliner]: procedures = 18, calls = 619, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2284 [2025-03-08 04:44:13,290 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 04:44:13,290 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 04:44:13,290 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 04:44:13,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 04:44:13,298 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,362 INFO L175 MemorySlicer]: Split 221 memory accesses to 5 slices as follows [2, 7, 2, 41, 169]. 76 percent of accesses are in the largest equivalence class. The 11 initializations are split as follows [2, 7, 2, 0, 0]. The 127 writes are split as follows [0, 0, 0, 0, 127]. [2025-03-08 04:44:13,363 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,363 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,406 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,417 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 04:44:13,440 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 04:44:13,440 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 04:44:13,440 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 04:44:13,441 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (1/1) ... [2025-03-08 04:44:13,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 04:44:13,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 04:44:13,464 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) [2025-03-08 04:44:13,468 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 [2025-03-08 04:44:13,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 04:44:13,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 04:44:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 04:44:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 04:44:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 04:44:13,655 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 04:44:13,657 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 04:44:19,260 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1280: havoc main_~__tmp_44~0#1, main_~__VERIFIER_assert__Id_MCDC_92~42#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~41#1, main_~Id_MCDC_89____CPAchecker_TMP_0~42#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~42#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~42#1;havoc main_~__tmp_43~0#1, main_~__VERIFIER_assert__Id_MCDC_92~41#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~40#1, main_~Id_MCDC_89____CPAchecker_TMP_0~41#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~41#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~41#1;havoc main_~__tmp_42~0#1, main_~__VERIFIER_assert__Id_MCDC_92~40#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~39#1, main_~Id_MCDC_89____CPAchecker_TMP_0~40#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~40#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~40#1;havoc main_~__tmp_41~0#1, main_~__VERIFIER_assert__Id_MCDC_92~39#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~38#1, main_~Id_MCDC_89____CPAchecker_TMP_0~39#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~39#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~39#1;havoc main_~__tmp_40~0#1, main_~__VERIFIER_assert__Id_MCDC_92~38#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~37#1, main_~Id_MCDC_89____CPAchecker_TMP_0~38#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~38#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~38#1;havoc main_~__tmp_39~0#1, main_~__VERIFIER_assert__Id_MCDC_92~37#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~36#1, main_~Id_MCDC_89____CPAchecker_TMP_0~37#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~37#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~37#1;havoc main_~__tmp_38~0#1, main_~__VERIFIER_assert__Id_MCDC_92~36#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~35#1, main_~Id_MCDC_89____CPAchecker_TMP_0~36#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~36#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~36#1;havoc main_~__tmp_37~0#1, main_~__VERIFIER_assert__Id_MCDC_92~35#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~34#1, main_~Id_MCDC_89____CPAchecker_TMP_0~35#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~35#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~35#1;havoc main_~__tmp_36~0#1, main_~__VERIFIER_assert__Id_MCDC_92~34#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~33#1, main_~Id_MCDC_89____CPAchecker_TMP_0~34#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~34#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~34#1;havoc main_~__tmp_35~0#1, main_~__VERIFIER_assert__Id_MCDC_92~33#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~32#1, main_~Id_MCDC_89____CPAchecker_TMP_0~33#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~33#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~33#1;havoc main_~__tmp_34~0#1, main_~__VERIFIER_assert__Id_MCDC_92~32#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~31#1, main_~Id_MCDC_89____CPAchecker_TMP_0~32#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~32#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~32#1;havoc main_~__tmp_33~0#1, main_~__VERIFIER_assert__Id_MCDC_92~31#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~30#1, main_~Id_MCDC_89____CPAchecker_TMP_0~31#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~31#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~31#1;havoc main_~__tmp_32~0#1, main_~__VERIFIER_assert__Id_MCDC_92~30#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~29#1, main_~Id_MCDC_89____CPAchecker_TMP_0~30#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~30#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~30#1;havoc main_~__tmp_31~0#1, main_~__VERIFIER_assert__Id_MCDC_92~29#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~28#1, main_~Id_MCDC_89____CPAchecker_TMP_0~29#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~29#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~29#1;havoc main_~__tmp_30~0#1, main_~__VERIFIER_assert__Id_MCDC_92~28#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~27#1, main_~Id_MCDC_89____CPAchecker_TMP_0~28#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~28#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~28#1;havoc main_~__tmp_29~0#1, main_~__VERIFIER_assert__Id_MCDC_92~27#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~26#1, main_~Id_MCDC_89____CPAchecker_TMP_0~27#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~27#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~27#1;havoc main_~__tmp_28~0#1, main_~__VERIFIER_assert__Id_MCDC_92~26#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~25#1, main_~Id_MCDC_89____CPAchecker_TMP_0~26#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~26#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~26#1;havoc main_~__tmp_27~0#1, main_~__VERIFIER_assert__Id_MCDC_92~25#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~24#1, main_~Id_MCDC_89____CPAchecker_TMP_0~25#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~25#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~25#1;havoc main_~__tmp_26~0#1, main_~__VERIFIER_assert__Id_MCDC_92~24#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~23#1, main_~Id_MCDC_89____CPAchecker_TMP_0~24#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~24#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~24#1;havoc main_~__tmp_25~0#1, main_~__VERIFIER_assert__Id_MCDC_92~23#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~22#1, main_~Id_MCDC_89____CPAchecker_TMP_0~23#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~23#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~23#1;havoc main_~__tmp_24~0#1, main_~__VERIFIER_assert__Id_MCDC_92~22#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~21#1, main_~Id_MCDC_89____CPAchecker_TMP_0~22#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~22#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~22#1;havoc main_~__tmp_23~0#1, main_~__VERIFIER_assert__Id_MCDC_92~21#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~20#1, main_~Id_MCDC_89____CPAchecker_TMP_0~21#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~21#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~21#1;havoc main_~__tmp_22~0#1, main_~__VERIFIER_assert__Id_MCDC_92~20#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~19#1, main_~Id_MCDC_89____CPAchecker_TMP_0~20#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~20#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~20#1;havoc main_~__tmp_21~0#1, main_~__VERIFIER_assert__Id_MCDC_92~19#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~18#1, main_~Id_MCDC_89____CPAchecker_TMP_0~19#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~19#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~19#1;havoc main_~__tmp_20~0#1, main_~__VERIFIER_assert__Id_MCDC_92~18#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~17#1, main_~Id_MCDC_89____CPAchecker_TMP_0~18#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~18#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~18#1;havoc main_~__tmp_19~0#1, main_~__VERIFIER_assert__Id_MCDC_92~17#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~16#1, main_~Id_MCDC_89____CPAchecker_TMP_0~17#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~17#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~17#1;havoc main_~__tmp_18~0#1, main_~__VERIFIER_assert__Id_MCDC_92~16#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~15#1, main_~Id_MCDC_89____CPAchecker_TMP_0~16#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~16#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~16#1;havoc main_~__tmp_17~0#1, main_~__VERIFIER_assert__Id_MCDC_92~15#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~14#1, main_~Id_MCDC_89____CPAchecker_TMP_0~15#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~15#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~15#1;havoc main_~__tmp_16~0#1, main_~__VERIFIER_assert__Id_MCDC_92~14#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~13#1, main_~Id_MCDC_89____CPAchecker_TMP_0~14#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~14#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~14#1;havoc main_~__tmp_15~0#1, main_~__VERIFIER_assert__Id_MCDC_92~13#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~12#1, main_~Id_MCDC_89____CPAchecker_TMP_0~13#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~13#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~13#1;havoc main_~__tmp_14~0#1, main_~__VERIFIER_assert__Id_MCDC_92~12#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~11#1, main_~Id_MCDC_89____CPAchecker_TMP_0~12#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~12#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~12#1;havoc main_~__tmp_13~0#1, main_~__VERIFIER_assert__Id_MCDC_92~11#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~10#1, main_~Id_MCDC_89____CPAchecker_TMP_0~11#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~11#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~11#1;havoc main_~__tmp_12~0#1, main_~__VERIFIER_assert__Id_MCDC_92~10#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~9#1, main_~Id_MCDC_89____CPAchecker_TMP_0~10#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~10#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~10#1;havoc main_~__tmp_11~0#1, main_~__VERIFIER_assert__Id_MCDC_92~9#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~8#1, main_~Id_MCDC_89____CPAchecker_TMP_0~9#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~9#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~9#1;havoc main_~__tmp_10~0#1, main_~__VERIFIER_assert__Id_MCDC_92~8#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~7#1, main_~Id_MCDC_89____CPAchecker_TMP_0~8#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~8#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~8#1;havoc main_~__tmp_9~0#1, main_~__VERIFIER_assert__Id_MCDC_92~7#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~6#1, main_~Id_MCDC_89____CPAchecker_TMP_0~7#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~7#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~7#1;havoc main_~__tmp_8~0#1, main_~__VERIFIER_assert__Id_MCDC_92~6#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~5#1, main_~Id_MCDC_89____CPAchecker_TMP_0~6#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~6#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~6#1;havoc main_~__tmp_7~0#1, main_~__VERIFIER_assert__Id_MCDC_92~5#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~4#1, main_~Id_MCDC_89____CPAchecker_TMP_0~5#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~5#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~5#1;havoc main_~__tmp_6~0#1, main_~__VERIFIER_assert__Id_MCDC_92~4#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~3#1, main_~Id_MCDC_89____CPAchecker_TMP_0~4#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~4#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~4#1;havoc main_~__tmp_5~0#1, main_~__VERIFIER_assert__Id_MCDC_92~3#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~2#1, main_~Id_MCDC_89____CPAchecker_TMP_0~3#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~3#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~3#1;havoc main_~__tmp_4~0#1, main_~__VERIFIER_assert__Id_MCDC_92~2#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~1#1, main_~Id_MCDC_89____CPAchecker_TMP_0~2#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~2#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~2#1;havoc main_~__tmp_3~0#1, main_~__VERIFIER_assert__Id_MCDC_92~1#1;havoc main_~Id_MCDC_89____CPAchecker_TMP_2~0#1, main_~Id_MCDC_89____CPAchecker_TMP_0~1#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~1#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~1#1;havoc main_~__tmp_2~0#1, main_~__VERIFIER_assert__Id_MCDC_92~0#1;call ULTIMATE.dealloc(main_~#Id_MCDC_89__Id_MCDC_95~0#1.base, main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset);havoc main_~#Id_MCDC_89__Id_MCDC_95~0#1.base, main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset;havoc main_~__tmp_1~0#1.base, main_~__tmp_1~0#1.offset, main_~Id_MCDC_89__Id_MCDC_88~0#1.base, main_~Id_MCDC_89__Id_MCDC_88~0#1.offset, main_~Id_MCDC_89__Id_MCDC_94~0#1.base, main_~Id_MCDC_89__Id_MCDC_94~0#1.offset, main_~#Id_MCDC_89__Id_MCDC_95~0#1.base, main_~#Id_MCDC_89__Id_MCDC_95~0#1.offset, main_~Id_MCDC_89__Id_MCDC_96~0#1, main_~Id_MCDC_89____CPAchecker_TMP_0~0#1.base, main_~Id_MCDC_89____CPAchecker_TMP_0~0#1.offset, main_~Id_MCDC_89____CPAchecker_TMP_1~0#1;call ULTIMATE.dealloc(main_~#main__Id_MCDC_119~0#1.base, main_~#main__Id_MCDC_119~0#1.offset);havoc main_~#main__Id_MCDC_119~0#1.base, main_~#main__Id_MCDC_119~0#1.offset; [2025-03-08 04:44:19,338 INFO L? ?]: Removed 315 outVars from TransFormulas that were not future-live. [2025-03-08 04:44:19,339 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 04:44:19,351 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 04:44:19,353 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 04:44:19,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:44:19 BoogieIcfgContainer [2025-03-08 04:44:19,354 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 04:44:19,355 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 04:44:19,355 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 04:44:19,359 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 04:44:19,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 04:44:12" (1/3) ... [2025-03-08 04:44:19,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15771f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 04:44:19, skipping insertion in model container [2025-03-08 04:44:19,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:44:13" (2/3) ... [2025-03-08 04:44:19,360 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15771f54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 04:44:19, skipping insertion in model container [2025-03-08 04:44:19,360 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:44:19" (3/3) ... [2025-03-08 04:44:19,362 INFO L128 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+nlh-reducer.c [2025-03-08 04:44:19,373 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 04:44:19,375 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aiob_4.c.v+nlh-reducer.c that has 1 procedures, 179 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-03-08 04:44:19,424 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 04:44:19,432 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;@25af8308, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 04:44:19,433 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 04:44:19,437 INFO L276 IsEmpty]: Start isEmpty. Operand has 179 states, 177 states have (on average 1.9774011299435028) internal successors, (350), 178 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 04:44:19,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-03-08 04:44:19,446 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 04:44:19,446 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 04:44:19,447 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 04:44:19,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 04:44:19,451 INFO L85 PathProgramCache]: Analyzing trace with hash -804515811, now seen corresponding path program 1 times [2025-03-08 04:44:19,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 04:44:19,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515841968] [2025-03-08 04:44:19,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:44:19,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 04:44:23,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-08 04:44:32,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-08 04:44:32,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:44:32,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:44:58,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 04:44:58,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 04:44:58,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515841968] [2025-03-08 04:44:58,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515841968] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 04:44:58,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 04:44:58,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [] total 53 [2025-03-08 04:44:58,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226593381] [2025-03-08 04:44:58,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 04:44:58,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-03-08 04:44:58,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 04:44:58,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-03-08 04:44:58,930 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=2645, Unknown=0, NotChecked=0, Total=2756 [2025-03-08 04:44:58,932 INFO L87 Difference]: Start difference. First operand has 179 states, 177 states have (on average 1.9774011299435028) internal successors, (350), 178 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 53 states, 53 states have (on average 3.30188679245283) internal successors, (175), 53 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 04:45:03,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 04:45:07,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 04:45:12,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 04:45:16,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 04:45:20,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 04:45:24,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 04:45:29,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 04:45:33,433 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 04:45:37,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 04:45:42,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2025-03-08 04:45:46,286 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []