./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invgen/id_build.i.p+sep-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-invgen/id_build.i.p+sep-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 f68564f44f9631930b25a13255f1efcd8f237d0da80cb5fdaa485133dbd9dd9f --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 04:42:35,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 04:42:35,454 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 04:42:35,458 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 04:42:35,460 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 04:42:35,480 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 04:42:35,480 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 04:42:35,480 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 04:42:35,481 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 04:42:35,481 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 04:42:35,481 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 04:42:35,481 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 04:42:35,481 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 04:42:35,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 04:42:35,481 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 04:42:35,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 04:42:35,481 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 04:42:35,481 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 04:42:35,481 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 04:42:35,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 04:42:35,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 04:42:35,484 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 04:42:35,484 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 04:42:35,484 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 04:42:35,484 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 04:42:35,484 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 04:42:35,484 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 04:42:35,484 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 04:42:35,484 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 04:42:35,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 04:42:35,485 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 04:42:35,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 04:42:35,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 04:42:35,485 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 04:42:35,485 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 04:42:35,485 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 04:42:35,485 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 04:42:35,485 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 04:42:35,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 04:42:35,486 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 04:42:35,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 04:42:35,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 04:42:35,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 04:42:35,486 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 -> f68564f44f9631930b25a13255f1efcd8f237d0da80cb5fdaa485133dbd9dd9f [2025-03-08 04:42:35,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 04:42:35,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 04:42:35,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 04:42:35,709 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 04:42:35,709 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 04:42:35,711 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c [2025-03-08 04:42:36,854 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d927681e/68dda9ed8bc1479088e72419219e275c/FLAG9353c9143 [2025-03-08 04:42:37,088 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 04:42:37,091 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invgen/id_build.i.p+sep-reducer.c [2025-03-08 04:42:37,101 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d927681e/68dda9ed8bc1479088e72419219e275c/FLAG9353c9143 [2025-03-08 04:42:37,420 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d927681e/68dda9ed8bc1479088e72419219e275c [2025-03-08 04:42:37,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 04:42:37,422 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 04:42:37,423 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 04:42:37,423 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 04:42:37,427 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 04:42:37,427 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e065841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37, skipping insertion in model container [2025-03-08 04:42:37,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,463 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 04:42:37,728 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-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2025-03-08 04:42:37,750 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-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2025-03-08 04:42:37,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 04:42:37,765 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 04:42:37,830 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-invgen/id_build.i.p+sep-reducer.c[34383,34396] [2025-03-08 04:42:37,840 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-invgen/id_build.i.p+sep-reducer.c[39106,39119] [2025-03-08 04:42:37,846 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 04:42:37,857 INFO L204 MainTranslator]: Completed translation [2025-03-08 04:42:37,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37 WrapperNode [2025-03-08 04:42:37,858 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 04:42:37,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 04:42:37,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 04:42:37,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 04:42:37,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,909 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1589 [2025-03-08 04:42:37,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 04:42:37,910 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 04:42:37,910 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 04:42:37,910 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 04:42:37,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,923 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,943 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 04:42:37,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,954 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,980 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 04:42:37,981 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 04:42:37,981 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 04:42:37,981 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 04:42:37,982 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (1/1) ... [2025-03-08 04:42:37,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 04:42:37,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 04:42:38,011 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 04:42:38,015 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 04:42:38,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 04:42:38,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 04:42:38,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 04:42:38,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 04:42:38,130 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 04:42:38,132 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 04:42:38,915 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L732: havoc main_~__tmp_50~0#1, main_~__VERIFIER_assert__cond~49#1;havoc main_~__tmp_49~0#1, main_~__VERIFIER_assert__cond~48#1;havoc main_~__tmp_48~0#1, main_~__VERIFIER_assert__cond~47#1;havoc main_~__tmp_47~0#1, main_~__VERIFIER_assert__cond~46#1;havoc main_~__tmp_46~0#1, main_~__VERIFIER_assert__cond~45#1;havoc main_~__tmp_45~0#1, main_~__VERIFIER_assert__cond~44#1;havoc main_~__tmp_44~0#1, main_~__VERIFIER_assert__cond~43#1;havoc main_~__tmp_43~0#1, main_~__VERIFIER_assert__cond~42#1;havoc main_~__tmp_42~0#1, main_~__VERIFIER_assert__cond~41#1;havoc main_~__tmp_41~0#1, main_~__VERIFIER_assert__cond~40#1;havoc main_~__tmp_40~0#1, main_~__VERIFIER_assert__cond~39#1;havoc main_~__tmp_39~0#1, main_~__VERIFIER_assert__cond~38#1;havoc main_~__tmp_38~0#1, main_~__VERIFIER_assert__cond~37#1;havoc main_~__tmp_37~0#1, main_~__VERIFIER_assert__cond~36#1;havoc main_~__tmp_36~0#1, main_~__VERIFIER_assert__cond~35#1;havoc main_~__tmp_35~0#1, main_~__VERIFIER_assert__cond~34#1; [2025-03-08 04:42:38,916 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L439: havoc main_~__tmp_34~0#1, main_~__VERIFIER_assert__cond~33#1;havoc main_~__tmp_33~0#1, main_~__VERIFIER_assert__cond~32#1;havoc main_~__tmp_32~0#1, main_~__VERIFIER_assert__cond~31#1;havoc main_~__tmp_31~0#1, main_~__VERIFIER_assert__cond~30#1;havoc main_~__tmp_30~0#1, main_~__VERIFIER_assert__cond~29#1;havoc main_~__tmp_29~0#1, main_~__VERIFIER_assert__cond~28#1;havoc main_~__tmp_28~0#1, main_~__VERIFIER_assert__cond~27#1;havoc main_~__tmp_27~0#1, main_~__VERIFIER_assert__cond~26#1;havoc main_~__tmp_26~0#1, main_~__VERIFIER_assert__cond~25#1;havoc main_~__tmp_25~0#1, main_~__VERIFIER_assert__cond~24#1;havoc main_~__tmp_24~0#1, main_~__VERIFIER_assert__cond~23#1;havoc main_~__tmp_23~0#1, main_~__VERIFIER_assert__cond~22#1;havoc main_~__tmp_22~0#1, main_~__VERIFIER_assert__cond~21#1;havoc main_~__tmp_21~0#1, main_~__VERIFIER_assert__cond~20#1;havoc main_~__tmp_20~0#1, main_~__VERIFIER_assert__cond~19#1;havoc main_~__tmp_19~0#1, main_~__VERIFIER_assert__cond~18#1;havoc main_~__tmp_18~0#1, main_~__VERIFIER_assert__cond~17#1;havoc main_~__tmp_17~0#1, main_~__VERIFIER_assert__cond~16#1; [2025-03-08 04:42:38,916 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1996: havoc main_~__tmp_136~0#1, main_~__VERIFIER_assert__cond~135#1;havoc main_~__tmp_135~0#1, main_~__VERIFIER_assert__cond~134#1;havoc main_~__tmp_134~0#1, main_~__VERIFIER_assert__cond~133#1;havoc main_~__tmp_133~0#1, main_~__VERIFIER_assert__cond~132#1;havoc main_~__tmp_132~0#1, main_~__VERIFIER_assert__cond~131#1;havoc main_~__tmp_131~0#1, main_~__VERIFIER_assert__cond~130#1;havoc main_~__tmp_130~0#1, main_~__VERIFIER_assert__cond~129#1;havoc main_~__tmp_129~0#1, main_~__VERIFIER_assert__cond~128#1;havoc main_~__tmp_128~0#1, main_~__VERIFIER_assert__cond~127#1;havoc main_~__tmp_127~0#1, main_~__VERIFIER_assert__cond~126#1;havoc main_~__tmp_126~0#1, main_~__VERIFIER_assert__cond~125#1;havoc main_~__tmp_125~0#1, main_~__VERIFIER_assert__cond~124#1;havoc main_~__tmp_124~0#1, main_~__VERIFIER_assert__cond~123#1;havoc main_~__tmp_123~0#1, main_~__VERIFIER_assert__cond~122#1;havoc main_~__tmp_122~0#1, main_~__VERIFIER_assert__cond~121#1;havoc main_~__tmp_121~0#1, main_~__VERIFIER_assert__cond~120#1;havoc main_~__tmp_120~0#1, main_~__VERIFIER_assert__cond~119#1;havoc main_~__tmp_119~0#1, main_~__VERIFIER_assert__cond~118#1; [2025-03-08 04:42:38,916 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: havoc main_~__tmp_16~0#1, main_~__VERIFIER_assert__cond~15#1;havoc main_~__tmp_15~0#1, main_~__VERIFIER_assert__cond~14#1;havoc main_~__tmp_14~0#1, main_~__VERIFIER_assert__cond~13#1;havoc main_~__tmp_13~0#1, main_~__VERIFIER_assert__cond~12#1;havoc main_~__tmp_12~0#1, main_~__VERIFIER_assert__cond~11#1;havoc main_~__tmp_11~0#1, main_~__VERIFIER_assert__cond~10#1;havoc main_~__tmp_10~0#1, main_~__VERIFIER_assert__cond~9#1;havoc main_~__tmp_9~0#1, main_~__VERIFIER_assert__cond~8#1;havoc main_~__tmp_8~0#1, main_~__VERIFIER_assert__cond~7#1;havoc main_~__tmp_7~0#1, main_~__VERIFIER_assert__cond~6#1;havoc main_~__tmp_6~0#1, main_~__VERIFIER_assert__cond~5#1;havoc main_~__tmp_5~0#1, main_~__VERIFIER_assert__cond~4#1;havoc main_~__tmp_4~0#1, main_~__VERIFIER_assert__cond~3#1;havoc main_~__tmp_3~0#1, main_~__VERIFIER_assert__cond~2#1;havoc main_~__tmp_2~0#1, main_~__VERIFIER_assert__cond~1#1;havoc main_~__tmp_1~0#1, main_~__VERIFIER_assert__cond~0#1; [2025-03-08 04:42:38,916 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1770: havoc main_~__tmp_118~0#1, main_~__VERIFIER_assert__cond~117#1;havoc main_~__tmp_117~0#1, main_~__VERIFIER_assert__cond~116#1;havoc main_~__tmp_116~0#1, main_~__VERIFIER_assert__cond~115#1;havoc main_~__tmp_115~0#1, main_~__VERIFIER_assert__cond~114#1;havoc main_~__tmp_114~0#1, main_~__VERIFIER_assert__cond~113#1;havoc main_~__tmp_113~0#1, main_~__VERIFIER_assert__cond~112#1;havoc main_~__tmp_112~0#1, main_~__VERIFIER_assert__cond~111#1;havoc main_~__tmp_111~0#1, main_~__VERIFIER_assert__cond~110#1;havoc main_~__tmp_110~0#1, main_~__VERIFIER_assert__cond~109#1;havoc main_~__tmp_109~0#1, main_~__VERIFIER_assert__cond~108#1;havoc main_~__tmp_108~0#1, main_~__VERIFIER_assert__cond~107#1;havoc main_~__tmp_107~0#1, main_~__VERIFIER_assert__cond~106#1;havoc main_~__tmp_106~0#1, main_~__VERIFIER_assert__cond~105#1;havoc main_~__tmp_105~0#1, main_~__VERIFIER_assert__cond~104#1;havoc main_~__tmp_104~0#1, main_~__VERIFIER_assert__cond~103#1;havoc main_~__tmp_103~0#1, main_~__VERIFIER_assert__cond~102#1; [2025-03-08 04:42:38,916 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1477: havoc main_~__tmp_102~0#1, main_~__VERIFIER_assert__cond~101#1;havoc main_~__tmp_101~0#1, main_~__VERIFIER_assert__cond~100#1;havoc main_~__tmp_100~0#1, main_~__VERIFIER_assert__cond~99#1;havoc main_~__tmp_99~0#1, main_~__VERIFIER_assert__cond~98#1;havoc main_~__tmp_98~0#1, main_~__VERIFIER_assert__cond~97#1;havoc main_~__tmp_97~0#1, main_~__VERIFIER_assert__cond~96#1;havoc main_~__tmp_96~0#1, main_~__VERIFIER_assert__cond~95#1;havoc main_~__tmp_95~0#1, main_~__VERIFIER_assert__cond~94#1;havoc main_~__tmp_94~0#1, main_~__VERIFIER_assert__cond~93#1;havoc main_~__tmp_93~0#1, main_~__VERIFIER_assert__cond~92#1;havoc main_~__tmp_92~0#1, main_~__VERIFIER_assert__cond~91#1;havoc main_~__tmp_91~0#1, main_~__VERIFIER_assert__cond~90#1;havoc main_~__tmp_90~0#1, main_~__VERIFIER_assert__cond~89#1;havoc main_~__tmp_89~0#1, main_~__VERIFIER_assert__cond~88#1;havoc main_~__tmp_88~0#1, main_~__VERIFIER_assert__cond~87#1;havoc main_~__tmp_87~0#1, main_~__VERIFIER_assert__cond~86#1;havoc main_~__tmp_86~0#1, main_~__VERIFIER_assert__cond~85#1;havoc main_~__tmp_85~0#1, main_~__VERIFIER_assert__cond~84#1; [2025-03-08 04:42:38,916 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2305: havoc main_~__tmp_153~0#1, main_~__VERIFIER_assert__cond~152#1;havoc main_~__tmp_152~0#1, main_~__VERIFIER_assert__cond~151#1;havoc main_~__tmp_151~0#1, main_~__VERIFIER_assert__cond~150#1;havoc main_~__tmp_150~0#1, main_~__VERIFIER_assert__cond~149#1;havoc main_~__tmp_149~0#1, main_~__VERIFIER_assert__cond~148#1;havoc main_~__tmp_148~0#1, main_~__VERIFIER_assert__cond~147#1;havoc main_~__tmp_147~0#1, main_~__VERIFIER_assert__cond~146#1;havoc main_~__tmp_146~0#1, main_~__VERIFIER_assert__cond~145#1;havoc main_~__tmp_145~0#1, main_~__VERIFIER_assert__cond~144#1;havoc main_~__tmp_144~0#1, main_~__VERIFIER_assert__cond~143#1;havoc main_~__tmp_143~0#1, main_~__VERIFIER_assert__cond~142#1;havoc main_~__tmp_142~0#1, main_~__VERIFIER_assert__cond~141#1;havoc main_~__tmp_141~0#1, main_~__VERIFIER_assert__cond~140#1;havoc main_~__tmp_140~0#1, main_~__VERIFIER_assert__cond~139#1;havoc main_~__tmp_139~0#1, main_~__VERIFIER_assert__cond~138#1;havoc main_~__tmp_138~0#1, main_~__VERIFIER_assert__cond~137#1;havoc main_~__tmp_137~0#1, main_~__VERIFIER_assert__cond~136#1; [2025-03-08 04:42:38,916 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1251: havoc main_~__tmp_84~0#1, main_~__VERIFIER_assert__cond~83#1;havoc main_~__tmp_83~0#1, main_~__VERIFIER_assert__cond~82#1;havoc main_~__tmp_82~0#1, main_~__VERIFIER_assert__cond~81#1;havoc main_~__tmp_81~0#1, main_~__VERIFIER_assert__cond~80#1;havoc main_~__tmp_80~0#1, main_~__VERIFIER_assert__cond~79#1;havoc main_~__tmp_79~0#1, main_~__VERIFIER_assert__cond~78#1;havoc main_~__tmp_78~0#1, main_~__VERIFIER_assert__cond~77#1;havoc main_~__tmp_77~0#1, main_~__VERIFIER_assert__cond~76#1;havoc main_~__tmp_76~0#1, main_~__VERIFIER_assert__cond~75#1;havoc main_~__tmp_75~0#1, main_~__VERIFIER_assert__cond~74#1;havoc main_~__tmp_74~0#1, main_~__VERIFIER_assert__cond~73#1;havoc main_~__tmp_73~0#1, main_~__VERIFIER_assert__cond~72#1;havoc main_~__tmp_72~0#1, main_~__VERIFIER_assert__cond~71#1;havoc main_~__tmp_71~0#1, main_~__VERIFIER_assert__cond~70#1;havoc main_~__tmp_70~0#1, main_~__VERIFIER_assert__cond~69#1;havoc main_~__tmp_69~0#1, main_~__VERIFIER_assert__cond~68#1; [2025-03-08 04:42:38,916 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L958: havoc main_~__tmp_68~0#1, main_~__VERIFIER_assert__cond~67#1;havoc main_~__tmp_67~0#1, main_~__VERIFIER_assert__cond~66#1;havoc main_~__tmp_66~0#1, main_~__VERIFIER_assert__cond~65#1;havoc main_~__tmp_65~0#1, main_~__VERIFIER_assert__cond~64#1;havoc main_~__tmp_64~0#1, main_~__VERIFIER_assert__cond~63#1;havoc main_~__tmp_63~0#1, main_~__VERIFIER_assert__cond~62#1;havoc main_~__tmp_62~0#1, main_~__VERIFIER_assert__cond~61#1;havoc main_~__tmp_61~0#1, main_~__VERIFIER_assert__cond~60#1;havoc main_~__tmp_60~0#1, main_~__VERIFIER_assert__cond~59#1;havoc main_~__tmp_59~0#1, main_~__VERIFIER_assert__cond~58#1;havoc main_~__tmp_58~0#1, main_~__VERIFIER_assert__cond~57#1;havoc main_~__tmp_57~0#1, main_~__VERIFIER_assert__cond~56#1;havoc main_~__tmp_56~0#1, main_~__VERIFIER_assert__cond~55#1;havoc main_~__tmp_55~0#1, main_~__VERIFIER_assert__cond~54#1;havoc main_~__tmp_54~0#1, main_~__VERIFIER_assert__cond~53#1;havoc main_~__tmp_53~0#1, main_~__VERIFIER_assert__cond~52#1;havoc main_~__tmp_52~0#1, main_~__VERIFIER_assert__cond~51#1;havoc main_~__tmp_51~0#1, main_~__VERIFIER_assert__cond~50#1; [2025-03-08 04:42:38,972 INFO L? ?]: Removed 550 outVars from TransFormulas that were not future-live. [2025-03-08 04:42:38,973 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 04:42:38,983 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 04:42:38,983 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 04:42:38,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:42:38 BoogieIcfgContainer [2025-03-08 04:42:38,984 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 04:42:38,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 04:42:38,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 04:42:38,988 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 04:42:38,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 04:42:37" (1/3) ... [2025-03-08 04:42:38,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c850b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 04:42:38, skipping insertion in model container [2025-03-08 04:42:38,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 04:42:37" (2/3) ... [2025-03-08 04:42:38,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62c850b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 04:42:38, skipping insertion in model container [2025-03-08 04:42:38,989 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:42:38" (3/3) ... [2025-03-08 04:42:38,990 INFO L128 eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.c [2025-03-08 04:42:38,999 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 04:42:39,000 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG id_build.i.p+sep-reducer.c that has 1 procedures, 247 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-03-08 04:42:39,042 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 04:42:39,050 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;@32e667a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 04:42:39,051 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 04:42:39,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 247 states, 244 states have (on average 1.9754098360655739) internal successors, (482), 246 states have internal predecessors, (482), 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 04:42:39,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-08 04:42:39,063 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 04:42:39,064 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] [2025-03-08 04:42:39,064 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 04:42:39,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 04:42:39,067 INFO L85 PathProgramCache]: Analyzing trace with hash -755742253, now seen corresponding path program 1 times [2025-03-08 04:42:39,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 04:42:39,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788756671] [2025-03-08 04:42:39,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:42:39,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 04:42:39,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-08 04:42:39,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-08 04:42:39,237 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:42:39,237 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:42:39,738 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 04:42:39,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 04:42:39,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788756671] [2025-03-08 04:42:39,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788756671] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 04:42:39,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 04:42:39,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 04:42:39,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893538984] [2025-03-08 04:42:39,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 04:42:39,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 04:42:39,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 04:42:39,757 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 04:42:39,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 04:42:39,760 INFO L87 Difference]: Start difference. First operand has 247 states, 244 states have (on average 1.9754098360655739) internal successors, (482), 246 states have internal predecessors, (482), 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 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 04:42:40,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 04:42:40,219 INFO L93 Difference]: Finished difference Result 251 states and 485 transitions. [2025-03-08 04:42:40,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 04:42:40,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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) Word has length 134 [2025-03-08 04:42:40,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 04:42:40,229 INFO L225 Difference]: With dead ends: 251 [2025-03-08 04:42:40,229 INFO L226 Difference]: Without dead ends: 242 [2025-03-08 04:42:40,231 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-08 04:42:40,236 INFO L435 NwaCegarLoop]: 274 mSDtfsCounter, 382 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 624 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 624 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 04:42:40,237 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 818 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 04:42:40,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2025-03-08 04:42:40,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2025-03-08 04:42:40,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 241 states have (on average 1.157676348547718) internal successors, (279), 241 states have internal predecessors, (279), 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 04:42:40,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 279 transitions. [2025-03-08 04:42:40,271 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 279 transitions. Word has length 134 [2025-03-08 04:42:40,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 04:42:40,272 INFO L471 AbstractCegarLoop]: Abstraction has 242 states and 279 transitions. [2025-03-08 04:42:40,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.8) internal successors, (134), 5 states have internal predecessors, (134), 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 04:42:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 279 transitions. [2025-03-08 04:42:40,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2025-03-08 04:42:40,274 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 04:42:40,274 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] [2025-03-08 04:42:40,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 04:42:40,274 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 04:42:40,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 04:42:40,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1793976406, now seen corresponding path program 1 times [2025-03-08 04:42:40,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 04:42:40,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493743798] [2025-03-08 04:42:40,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 04:42:40,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 04:42:40,311 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 135 statements into 1 equivalence classes. [2025-03-08 04:42:40,342 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 135 of 135 statements. [2025-03-08 04:42:40,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 04:42:40,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 04:42:40,581 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 04:42:40,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 04:42:40,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493743798] [2025-03-08 04:42:40,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493743798] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 04:42:40,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 04:42:40,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 04:42:40,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371444693] [2025-03-08 04:42:40,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 04:42:40,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 04:42:40,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 04:42:40,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 04:42:40,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 04:42:40,583 INFO L87 Difference]: Start difference. First operand 242 states and 279 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 04:42:40,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 04:42:40,966 INFO L93 Difference]: Finished difference Result 242 states and 279 transitions. [2025-03-08 04:42:40,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 04:42:40,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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) Word has length 135 [2025-03-08 04:42:40,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 04:42:40,967 INFO L225 Difference]: With dead ends: 242 [2025-03-08 04:42:40,967 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 04:42:40,971 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-08 04:42:40,972 INFO L435 NwaCegarLoop]: 86 mSDtfsCounter, 208 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 617 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 251 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 617 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 04:42:40,972 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 251 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 617 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 04:42:40,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 04:42:40,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 04:42:40,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 04:42:40,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 04:42:40,973 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 135 [2025-03-08 04:42:40,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 04:42:40,973 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 04:42:40,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.0) internal successors, (135), 5 states have internal predecessors, (135), 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 04:42:40,973 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 04:42:40,973 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 04:42:40,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-03-08 04:42:40,975 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-03-08 04:42:40,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 04:42:40,978 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-08 04:42:40,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 04:42:40,984 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 04:42:40,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 04:42:40 BoogieIcfgContainer [2025-03-08 04:42:40,988 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 04:42:40,988 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 04:42:40,988 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 04:42:40,989 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 04:42:40,989 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 04:42:38" (3/4) ... [2025-03-08 04:42:40,990 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 04:42:41,009 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2025-03-08 04:42:41,010 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-08 04:42:41,013 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 04:42:41,014 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 04:42:41,124 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 04:42:41,125 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 04:42:41,125 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 04:42:41,125 INFO L158 Benchmark]: Toolchain (without parser) took 3702.99ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 111.8MB in the beginning and 167.7MB in the end (delta: -55.9MB). Peak memory consumption was 220.2MB. Max. memory is 16.1GB. [2025-03-08 04:42:41,125 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 04:42:41,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 435.58ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 80.0MB in the end (delta: 31.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-08 04:42:41,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.41ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 74.0MB in the end (delta: 6.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 04:42:41,126 INFO L158 Benchmark]: Boogie Preprocessor took 70.62ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 68.1MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 04:42:41,126 INFO L158 Benchmark]: IcfgBuilder took 1002.70ms. Allocated memory is still 142.6MB. Free memory was 68.1MB in the beginning and 92.5MB in the end (delta: -24.4MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2025-03-08 04:42:41,127 INFO L158 Benchmark]: TraceAbstraction took 2002.82ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 91.7MB in the beginning and 186.4MB in the end (delta: -94.7MB). Peak memory consumption was 188.0MB. Max. memory is 16.1GB. [2025-03-08 04:42:41,127 INFO L158 Benchmark]: Witness Printer took 136.32ms. Allocated memory is still 419.4MB. Free memory was 186.4MB in the beginning and 167.7MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 04:42:41,128 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 201.3MB. Free memory is still 124.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 435.58ms. Allocated memory is still 142.6MB. Free memory was 111.3MB in the beginning and 80.0MB in the end (delta: 31.3MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.41ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 74.0MB in the end (delta: 6.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.62ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 68.1MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 1002.70ms. Allocated memory is still 142.6MB. Free memory was 68.1MB in the beginning and 92.5MB in the end (delta: -24.4MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2002.82ms. Allocated memory was 142.6MB in the beginning and 419.4MB in the end (delta: 276.8MB). Free memory was 91.7MB in the beginning and 186.4MB in the end (delta: -94.7MB). Peak memory consumption was 188.0MB. Max. memory is 16.1GB. * Witness Printer took 136.32ms. Allocated memory is still 419.4MB. Free memory was 186.4MB in the beginning and 167.7MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 2003]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 2312]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 247 locations, 482 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 590 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 590 mSDsluCounter, 1069 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 709 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1241 IncrementalHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 360 mSDtfsCounter, 1241 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 269 NumberOfCodeBlocks, 269 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 267 ConstructedInterpolants, 0 QuantifiedInterpolants, 593 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-08 04:42:41,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE