./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 1e059282fd5d86931dc4c64c61df508e5e1072350b4f411e7728a201bfba22a1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:23:49,941 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:23:49,980 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:23:49,984 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:23:49,984 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:23:49,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:23:49,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:23:49,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:23:49,998 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:23:49,998 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:23:49,998 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:23:49,998 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:23:49,998 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:23:49,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:23:49,998 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:23:49,999 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:23:49,999 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:23:49,999 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:23:50,000 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:23:50,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:23:50,000 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:23:50,000 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:23:50,000 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:23:50,000 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:23:50,000 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:23:50,000 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:23:50,000 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:23:50,000 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:23:50,000 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:23:50,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:23:50,000 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-jdk21/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 -> 1e059282fd5d86931dc4c64c61df508e5e1072350b4f411e7728a201bfba22a1 [2025-02-07 21:23:50,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:23:50,239 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:23:50,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:23:50,246 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:23:50,246 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:23:50,247 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2025-02-07 21:23:51,428 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/95ed0e515/ffb36225397142f1b2d532a3ee1bfdb8/FLAG9c3425050 [2025-02-07 21:23:51,754 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:23:51,754 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2025-02-07 21:23:51,762 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/95ed0e515/ffb36225397142f1b2d532a3ee1bfdb8/FLAG9c3425050 [2025-02-07 21:23:52,046 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/95ed0e515/ffb36225397142f1b2d532a3ee1bfdb8 [2025-02-07 21:23:52,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:23:52,049 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:23:52,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:23:52,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:23:52,056 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:23:52,057 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,058 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e3f5dff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52, skipping insertion in model container [2025-02-07 21:23:52,058 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,084 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:23:52,236 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10504,10517] [2025-02-07 21:23:52,251 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13076,13089] [2025-02-07 21:23:52,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:23:52,300 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:23:52,352 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[10504,10517] [2025-02-07 21:23:52,360 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[13076,13089] [2025-02-07 21:23:52,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:23:52,397 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:23:52,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52 WrapperNode [2025-02-07 21:23:52,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:23:52,398 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:23:52,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:23:52,399 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:23:52,403 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,414 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,449 INFO L138 Inliner]: procedures = 23, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1131 [2025-02-07 21:23:52,449 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:23:52,450 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:23:52,450 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:23:52,450 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:23:52,457 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,457 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,461 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,486 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]. [2025-02-07 21:23:52,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,508 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,534 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:23:52,539 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:23:52,539 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:23:52,539 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:23:52,540 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (1/1) ... [2025-02-07 21:23:52,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:23:52,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:23:52,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 21:23:52,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 21:23:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:23:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:23:52,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:23:52,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:23:52,784 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:23:52,786 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:23:53,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L934: havoc main_~check__tmp~3#1; [2025-02-07 21:23:53,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1102: havoc main_~node3____CPAchecker_TMP_1~1#1;havoc main_~node3____CPAchecker_TMP_0~1#1; [2025-02-07 21:23:53,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L576: havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1;havoc main_~node3__newmax~1#1;havoc main_~node2__newmax~1#1; [2025-02-07 21:23:53,600 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L811: havoc main_~node1__newmax~2#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1;havoc main_~node3__newmax~2#1;havoc main_~node2__newmax~2#1; [2025-02-07 21:23:53,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1342: havoc main_~node1____CPAchecker_TMP_1~1#1;havoc main_~node1____CPAchecker_TMP_0~1#1; [2025-02-07 21:23:53,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L848: havoc main_~node2__newmax~3#1; [2025-02-07 21:23:53,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L885: havoc main_~node3__newmax~3#1; [2025-02-07 21:23:53,601 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:23:53,605 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L426: havoc main_~node1__newmax~1#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1;havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1;havoc main_~node3__newmax~0#1;havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1;havoc main_~node2__newmax~0#1;havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~node1__newmax~0#1;havoc main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r212~0#1, main_~init__tmp___1~0#1, main_~init__r232~0#1, main_~init__tmp___2~0#1, main_~init__r312~0#1, main_~init__tmp___3~0#1, main_~init__r322~0#1, main_~init__tmp___4~0#1, main_~init__tmp___5~0#1;#t~ret34#1 := main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_#t~nondet26#1, main_#t~nondet27#1, main_#t~nondet28#1, main_#t~nondet29#1, main_#t~nondet30#1, main_#t~nondet31#1, main_#t~nondet32#1, main_#t~nondet33#1, main_~__tmp_2~0#1, main_~assert__arg~1#1, main_~check__tmp~1#1, main_~node3__newmax~1#1, main_~node2__newmax~1#1, main_~check__tmp~3#1, main_~node3____CPAchecker_TMP_1~1#1, main_~node3____CPAchecker_TMP_0~1#1, main_~node3__newmax~3#1, main_~node2____CPAchecker_TMP_1~1#1, main_~node2____CPAchecker_TMP_0~1#1, main_~node2__newmax~3#1, main_~node1____CPAchecker_TMP_1~1#1, main_~node1____CPAchecker_TMP_0~1#1, main_~node1__newmax~2#1, main_~__tmp_3~0#1, main_~assert__arg~2#1, main_~check__tmp~2#1, main_~node3__newmax~2#1, main_~node2__newmax~2#1, main_~node1__newmax~1#1, main_~__tmp_1~0#1, main_~assert__arg~0#1, main_~check__tmp~0#1, main_~node3____CPAchecker_TMP_1~0#1, main_~node3____CPAchecker_TMP_0~0#1, main_~node3__newmax~0#1, main_~node2____CPAchecker_TMP_1~0#1, main_~node2____CPAchecker_TMP_0~0#1, main_~node2__newmax~0#1, main_~node1____CPAchecker_TMP_1~0#1, main_~node1____CPAchecker_TMP_0~0#1, main_~node1__newmax~0#1, main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r212~0#1, main_~init__tmp___1~0#1, main_~init__r232~0#1, main_~init__tmp___2~0#1, main_~init__r312~0#1, main_~init__tmp___3~0#1, main_~init__r322~0#1, main_~init__tmp___4~0#1, main_~init__tmp___5~0#1, main_~main__c1~0#1, main_~main__i2~0#1;assume { :end_inline_main } true; [2025-02-07 21:23:53,605 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1222: havoc main_~node2____CPAchecker_TMP_1~1#1;havoc main_~node2____CPAchecker_TMP_0~1#1; [2025-02-07 21:23:53,690 INFO L? ?]: Removed 217 outVars from TransFormulas that were not future-live. [2025-02-07 21:23:53,690 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:23:53,705 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:23:53,705 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:23:53,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:23:53 BoogieIcfgContainer [2025-02-07 21:23:53,706 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:23:53,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:23:53,711 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:23:53,715 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:23:53,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:23:52" (1/3) ... [2025-02-07 21:23:53,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2261a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:23:53, skipping insertion in model container [2025-02-07 21:23:53,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:52" (2/3) ... [2025-02-07 21:23:53,719 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2261a32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:23:53, skipping insertion in model container [2025-02-07 21:23:53,719 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:23:53" (3/3) ... [2025-02-07 21:23:53,721 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2025-02-07 21:23:53,743 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:23:53,748 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.3.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c that has 1 procedures, 298 locations, 1 initial locations, 0 loop locations, and 2 error locations. [2025-02-07 21:23:53,812 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:23:53,824 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;@7702355a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:23:53,826 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 21:23:53,832 INFO L276 IsEmpty]: Start isEmpty. Operand has 297 states, 209 states have (on average 1.9952153110047848) internal successors, (417), 296 states have internal predecessors, (417), 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) [2025-02-07 21:23:53,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-02-07 21:23:53,843 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:23:53,843 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] [2025-02-07 21:23:53,844 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:23:53,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:23:53,848 INFO L85 PathProgramCache]: Analyzing trace with hash 217885915, now seen corresponding path program 1 times [2025-02-07 21:23:53,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:23:53,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827355519] [2025-02-07 21:23:53,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:23:53,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:23:53,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-02-07 21:23:54,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-02-07 21:23:54,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:23:54,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:23:55,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 21:23:55,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:23:55,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827355519] [2025-02-07 21:23:55,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827355519] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:23:55,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:23:55,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-02-07 21:23:55,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557629732] [2025-02-07 21:23:55,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:23:55,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-02-07 21:23:55,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:23:55,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-02-07 21:23:55,159 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2025-02-07 21:23:55,162 INFO L87 Difference]: Start difference. First operand has 297 states, 209 states have (on average 1.9952153110047848) internal successors, (417), 296 states have internal predecessors, (417), 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 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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) [2025-02-07 21:23:55,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:23:55,342 INFO L93 Difference]: Finished difference Result 301 states and 417 transitions. [2025-02-07 21:23:55,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-07 21:23:55,345 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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 109 [2025-02-07 21:23:55,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:23:55,356 INFO L225 Difference]: With dead ends: 301 [2025-02-07 21:23:55,356 INFO L226 Difference]: Without dead ends: 113 [2025-02-07 21:23:55,360 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-02-07 21:23:55,365 INFO L435 NwaCegarLoop]: 256 mSDtfsCounter, 421 mSDsluCounter, 633 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-07 21:23:55,367 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 889 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-07 21:23:55,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2025-02-07 21:23:55,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2025-02-07 21:23:55,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.0) internal successors, (112), 112 states have internal predecessors, (112), 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) [2025-02-07 21:23:55,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 112 transitions. [2025-02-07 21:23:55,392 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 112 transitions. Word has length 109 [2025-02-07 21:23:55,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:23:55,393 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 112 transitions. [2025-02-07 21:23:55,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.625) internal successors, (109), 8 states have internal predecessors, (109), 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) [2025-02-07 21:23:55,393 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 112 transitions. [2025-02-07 21:23:55,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-02-07 21:23:55,394 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:23:55,394 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] [2025-02-07 21:23:55,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:23:55,395 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:23:55,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:23:55,395 INFO L85 PathProgramCache]: Analyzing trace with hash -371352542, now seen corresponding path program 1 times [2025-02-07 21:23:55,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:23:55,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388713643] [2025-02-07 21:23:55,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:23:55,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:23:55,417 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-02-07 21:23:55,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-02-07 21:23:55,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:23:55,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:23:56,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 21:23:56,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:23:56,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388713643] [2025-02-07 21:23:56,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388713643] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:23:56,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:23:56,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2025-02-07 21:23:56,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558817667] [2025-02-07 21:23:56,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:23:56,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-02-07 21:23:56,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:23:56,268 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-02-07 21:23:56,269 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2025-02-07 21:23:56,269 INFO L87 Difference]: Start difference. First operand 113 states and 112 transitions. Second operand has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 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) [2025-02-07 21:23:56,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:23:56,510 INFO L93 Difference]: Finished difference Result 113 states and 112 transitions. [2025-02-07 21:23:56,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-02-07 21:23:56,510 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 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 112 [2025-02-07 21:23:56,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:23:56,511 INFO L225 Difference]: With dead ends: 113 [2025-02-07 21:23:56,511 INFO L226 Difference]: Without dead ends: 0 [2025-02-07 21:23:56,511 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2025-02-07 21:23:56,512 INFO L435 NwaCegarLoop]: 74 mSDtfsCounter, 196 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 510 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-07 21:23:56,512 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 510 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-07 21:23:56,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-07 21:23:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-07 21:23:56,512 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) [2025-02-07 21:23:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-07 21:23:56,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 112 [2025-02-07 21:23:56,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:23:56,515 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-07 21:23:56,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.333333333333334) internal successors, (112), 12 states have internal predecessors, (112), 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) [2025-02-07 21:23:56,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-07 21:23:56,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 21:23:56,517 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 21:23:56,518 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 21:23:56,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 21:23:56,522 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 21:23:56,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-07 21:23:56,530 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:23:56,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:23:56 BoogieIcfgContainer [2025-02-07 21:23:56,540 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:23:56,540 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:23:56,540 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:23:56,540 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:23:56,541 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:23:53" (3/4) ... [2025-02-07 21:23:56,543 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 21:23:56,567 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-07 21:23:56,569 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 21:23:56,571 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-07 21:23:56,571 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 21:23:56,657 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 21:23:56,658 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 21:23:56,658 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:23:56,658 INFO L158 Benchmark]: Toolchain (without parser) took 4609.46ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 105.1MB in the beginning and 163.9MB in the end (delta: -58.8MB). Peak memory consumption was 107.2MB. Max. memory is 16.1GB. [2025-02-07 21:23:56,659 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:23:56,659 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.16ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 80.5MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 21:23:56,659 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.06ms. Allocated memory is still 142.6MB. Free memory was 80.5MB in the beginning and 74.3MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:23:56,659 INFO L158 Benchmark]: Boogie Preprocessor took 88.35ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 69.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:23:56,659 INFO L158 Benchmark]: IcfgBuilder took 1166.76ms. Allocated memory is still 142.6MB. Free memory was 69.9MB in the beginning and 50.6MB in the end (delta: 19.3MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. [2025-02-07 21:23:56,660 INFO L158 Benchmark]: TraceAbstraction took 2832.25ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 49.8MB in the beginning and 179.0MB in the end (delta: -129.1MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2025-02-07 21:23:56,660 INFO L158 Benchmark]: Witness Printer took 117.61ms. Allocated memory is still 310.4MB. Free memory was 179.0MB in the beginning and 163.9MB in the end (delta: 15.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 21:23:56,661 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.16ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 80.5MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.06ms. Allocated memory is still 142.6MB. Free memory was 80.5MB in the beginning and 74.3MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.35ms. Allocated memory is still 142.6MB. Free memory was 74.3MB in the beginning and 69.9MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1166.76ms. Allocated memory is still 142.6MB. Free memory was 69.9MB in the beginning and 50.6MB in the end (delta: 19.3MB). Peak memory consumption was 49.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2832.25ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 49.8MB in the beginning and 179.0MB in the end (delta: -129.1MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * Witness Printer took 117.61ms. Allocated memory is still 310.4MB. Free memory was 179.0MB in the beginning and 163.9MB in the end (delta: 15.0MB). 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: 583]: 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: 806]: 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, 298 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 617 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 617 mSDsluCounter, 1399 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1069 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 207 IncrementalHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 330 mSDtfsCounter, 207 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=297occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 219 ConstructedInterpolants, 0 QuantifiedInterpolants, 952 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! [2025-02-07 21:23:56,673 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE