./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-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 3bc3edc5b41c709765acde9978c91c5bce55372e37ee7403b6f2103b9547cfa5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:20:27,417 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:20:27,475 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:20:27,478 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:20:27,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:20:27,503 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:20:27,504 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:20:27,505 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:20:27,505 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:20:27,505 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:20:27,506 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:20:27,506 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:20:27,506 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:20:27,506 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:20:27,507 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:20:27,507 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:20:27,507 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:20:27,507 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:20:27,507 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:20:27,507 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:20:27,507 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:20:27,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:20:27,508 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:20:27,508 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:20:27,508 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:20:27,508 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:20:27,508 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:20:27,508 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:20:27,508 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:20:27,508 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:20:27,508 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:20:27,509 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:20:27,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:20:27,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:20:27,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:20:27,509 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:20:27,509 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:20:27,509 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:20:27,509 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:20:27,509 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:20:27,509 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:20:27,509 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:20:27,509 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:20:27,509 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 -> 3bc3edc5b41c709765acde9978c91c5bce55372e37ee7403b6f2103b9547cfa5 [2025-02-07 21:20:27,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:20:27,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:20:27,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:20:27,771 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:20:27,771 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:20:27,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-02-07 21:20:28,978 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fc41f8128/e7169f742e7b4f1f9445031d04ba60fa/FLAG26f3e8717 [2025-02-07 21:20:29,290 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:20:29,290 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-02-07 21:20:29,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fc41f8128/e7169f742e7b4f1f9445031d04ba60fa/FLAG26f3e8717 [2025-02-07 21:20:29,322 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fc41f8128/e7169f742e7b4f1f9445031d04ba60fa [2025-02-07 21:20:29,324 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:20:29,326 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:20:29,327 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:20:29,328 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:20:29,331 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:20:29,332 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:20:29" (1/1) ... [2025-02-07 21:20:29,332 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15c29319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:29, skipping insertion in model container [2025-02-07 21:20:29,333 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:20:29" (1/1) ... [2025-02-07 21:20:29,379 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:20:29,748 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[31343,31356] [2025-02-07 21:20:29,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:20:29,888 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:20:30,057 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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c[31343,31356] [2025-02-07 21:20:30,119 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:20:30,132 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:20:30,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30 WrapperNode [2025-02-07 21:20:30,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:20:30,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:20:30,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:20:30,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:20:30,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,166 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,228 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 2778 [2025-02-07 21:20:30,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:20:30,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:20:30,228 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:20:30,228 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:20:30,236 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,245 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,275 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 21:20:30,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,309 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,326 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:20:30,348 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:20:30,348 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:20:30,349 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:20:30,349 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (1/1) ... [2025-02-07 21:20:30,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:20:30,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:20:30,379 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 21:20:30,382 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 21:20:30,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:20:30,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:20:30,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:20:30,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:20:30,536 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:20:30,538 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:20:32,321 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2682: havoc main_~node1____CPAchecker_TMP_2~2#1;havoc main_~node1____CPAchecker_TMP_1~2#1;havoc main_~node1____CPAchecker_TMP_0~2#1; [2025-02-07 21:20:32,321 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2250: havoc main_~node4____CPAchecker_TMP_2~3#1;havoc main_~node4____CPAchecker_TMP_1~3#1;havoc main_~node4____CPAchecker_TMP_0~3#1; [2025-02-07 21:20:32,321 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2056: havoc main_~check__tmp~6#1; [2025-02-07 21:20:32,322 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1860: havoc main_~__tmp_6~0#1, main_~assert__arg~5#1;havoc main_~check__tmp~5#1;havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~4#1;havoc main_~node4____CPAchecker_TMP_2~2#1;havoc main_~node4____CPAchecker_TMP_1~2#1;havoc main_~node4____CPAchecker_TMP_0~2#1;havoc main_~node3____CPAchecker_TMP_2~2#1;havoc main_~node3____CPAchecker_TMP_1~2#1;havoc main_~node3____CPAchecker_TMP_0~2#1;havoc main_~node2____CPAchecker_TMP_2~2#1;havoc main_~node2____CPAchecker_TMP_1~2#1;havoc main_~node2____CPAchecker_TMP_0~2#1;havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1;havoc main_~node4____CPAchecker_TMP_2~1#1;havoc main_~node4____CPAchecker_TMP_1~1#1;havoc main_~node4____CPAchecker_TMP_0~1#1;havoc main_~node3____CPAchecker_TMP_2~1#1;havoc main_~node3____CPAchecker_TMP_1~1#1;havoc main_~node3____CPAchecker_TMP_0~1#1;havoc main_~node2____CPAchecker_TMP_2~1#1;havoc main_~node2____CPAchecker_TMP_1~1#1;havoc main_~node2____CPAchecker_TMP_0~1#1;havoc main_~node1____CPAchecker_TMP_2~1#1;havoc main_~node1____CPAchecker_TMP_1~1#1;havoc main_~node1____CPAchecker_TMP_0~1#1;havoc main_~__tmp_2~0#1, main_~assert__arg~1#1;havoc main_~check__tmp~1#1;havoc main_~__tmp_1~0#1, main_~assert__arg~0#1;havoc main_~check__tmp~0#1;havoc main_~node4____CPAchecker_TMP_2~0#1;havoc main_~node4____CPAchecker_TMP_1~0#1;havoc main_~node4____CPAchecker_TMP_0~0#1;havoc main_~node3____CPAchecker_TMP_2~0#1;havoc main_~node3____CPAchecker_TMP_1~0#1;havoc main_~node3____CPAchecker_TMP_0~0#1;havoc main_~node2____CPAchecker_TMP_2~0#1;havoc main_~node2____CPAchecker_TMP_1~0#1;havoc main_~node2____CPAchecker_TMP_0~0#1;havoc main_~node1____CPAchecker_TMP_2~0#1;havoc main_~node1____CPAchecker_TMP_1~0#1;havoc main_~node1____CPAchecker_TMP_0~0#1;havoc main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r141~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r241~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r341~0#1, main_~init__r411~0#1, main_~init__r421~0#1, main_~init__r431~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r142~0#1, main_~init__tmp___1~0#1, main_~init__r212~0#1, main_~init__tmp___2~0#1, main_~init__r232~0#1, main_~init__tmp___3~0#1, main_~init__r242~0#1, main_~init__tmp___4~0#1, main_~init__r312~0#1, main_~init__tmp___5~0#1, main_~init__r322~0#1, main_~init__tmp___6~0#1, main_~init__r342~0#1, main_~init__tmp___7~0#1, main_~init__r412~0#1, main_~init__tmp___8~0#1, main_~init__r422~0#1, main_~init__tmp___9~0#1, main_~init__r432~0#1, main_~init__tmp___10~0#1, main_~init__r123~0#1, main_~init__tmp___11~0#1, main_~init__r133~0#1, main_~init__tmp___12~0#1, main_~init__r143~0#1, main_~init__tmp___13~0#1, main_~init__r213~0#1, main_~init__tmp___14~0#1, main_~init__r233~0#1, main_~init__tmp___15~0#1, main_~init__r243~0#1, main_~init__tmp___16~0#1, main_~init__r313~0#1, main_~init__tmp___17~0#1, main_~init__r323~0#1, main_~init__tmp___18~0#1, main_~init__r343~0#1, main_~init__tmp___19~0#1, main_~init__r413~0#1, main_~init__tmp___20~0#1, main_~init__r423~0#1, main_~init__tmp___21~0#1, main_~init__r433~0#1, main_~init__tmp___22~0#1, main_~init__tmp___23~0#1;#t~ret44#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_#t~nondet34#1, main_#t~nondet35#1, main_#t~nondet36#1, main_#t~nondet37#1, main_#t~nondet38#1, main_#t~nondet39#1, main_#t~nondet40#1, main_#t~nondet41#1, main_#t~nondet42#1, main_#t~nondet43#1, main_~check__tmp~6#1, main_~node4____CPAchecker_TMP_2~3#1, main_~node4____CPAchecker_TMP_1~3#1, main_~node4____CPAchecker_TMP_0~3#1, main_~node3____CPAchecker_TMP_2~3#1, main_~node3____CPAchecker_TMP_1~3#1, main_~node3____CPAchecker_TMP_0~3#1, main_~node2____CPAchecker_TMP_2~3#1, main_~node2____CPAchecker_TMP_1~3#1, main_~node2____CPAchecker_TMP_0~3#1, main_~node1____CPAchecker_TMP_2~2#1, main_~node1____CPAchecker_TMP_1~2#1, main_~node1____CPAchecker_TMP_0~2#1, main_~__tmp_6~0#1, main_~assert__arg~5#1, main_~check__tmp~5#1, main_~__tmp_5~0#1, main_~assert__arg~4#1, main_~check__tmp~4#1, main_~node4____CPAchecker_TMP_2~2#1, main_~node4____CPAchecker_TMP_1~2#1, main_~node4____CPAchecker_TMP_0~2#1, main_~node3____CPAchecker_TMP_2~2#1, main_~node3____CPAchecker_TMP_1~2#1, main_~node3____CPAchecker_TMP_0~2#1, main_~node2____CPAchecker_TMP_2~2#1, main_~node2____CPAchecker_TMP_1~2#1, main_~node2____CPAchecker_TMP_0~2#1, main_~__tmp_4~0#1, main_~assert__arg~3#1, main_~check__tmp~3#1, main_~__tmp_3~0#1, main_~assert__arg~2#1, main_~check__tmp~2#1, main_~node4____CPAchecker_TMP_2~1#1, main_~node4____CPAchecker_TMP_1~1#1, main_~node4____CPAchecker_TMP_0~1#1, main_~node3____CPAchecker_TMP_2~1#1, main_~node3____CPAchecker_TMP_1~1#1, main_~node3____CPAchecker_TMP_0~1#1, main_~node2____CPAchecker_TMP_2~1#1, main_~node2____CPAchecker_TMP_1~1#1, main_~node2____CPAchecker_TMP_0~1#1, main_~node1____CPAchecker_TMP_2~1#1, main_~node1____CPAchecker_TMP_1~1#1, main_~node1____CPAchecker_TMP_0~1#1, main_~__tmp_2~0#1, main_~assert__arg~1#1, main_~check__tmp~1#1, main_~__tmp_1~0#1, main_~assert__arg~0#1, main_~check__tmp~0#1, main_~node4____CPAchecker_TMP_2~0#1, main_~node4____CPAchecker_TMP_1~0#1, main_~node4____CPAchecker_TMP_0~0#1, main_~node3____CPAchecker_TMP_2~0#1, main_~node3____CPAchecker_TMP_1~0#1, main_~node3____CPAchecker_TMP_0~0#1, main_~node2____CPAchecker_TMP_2~0#1, main_~node2____CPAchecker_TMP_1~0#1, main_~node2____CPAchecker_TMP_0~0#1, main_~node1____CPAchecker_TMP_2~0#1, main_~node1____CPAchecker_TMP_1~0#1, main_~node1____CPAchecker_TMP_0~0#1, main_~init__r121~0#1, main_~init__r131~0#1, main_~init__r141~0#1, main_~init__r211~0#1, main_~init__r231~0#1, main_~init__r241~0#1, main_~init__r311~0#1, main_~init__r321~0#1, main_~init__r341~0#1, main_~init__r411~0#1, main_~init__r421~0#1, main_~init__r431~0#1, main_~init__r122~0#1, main_~init__tmp~0#1, main_~init__r132~0#1, main_~init__tmp___0~0#1, main_~init__r142~0#1, main_~init__tmp___1~0#1, main_~init__r212~0#1, main_~init__tmp___2~0#1, main_~init__r232~0#1, main_~init__tmp___3~0#1, main_~init__r242~0#1, main_~init__tmp___4~0#1, main_~init__r312~0#1, main_~init__tmp___5~0#1, main_~init__r322~0#1, main_~init__tmp___6~0#1, main_~init__r342~0#1, main_~init__tmp___7~0#1, main_~init__r412~0#1, main_~init__tmp___8~0#1, main_~init__r422~0#1, main_~init__tmp___9~0#1, main_~init__r432~0#1, main_~init__tmp___10~0#1, main_~init__r123~0#1, main_~init__tmp___11~0#1, main_~init__r133~0#1, main_~init__tmp___12~0#1, main_~init__r143~0#1, main_~init__tmp___13~0#1, main_~init__r213~0#1, main_~init__tmp___14~0#1, main_~init__r233~0#1, main_~init__tmp___15~0#1, main_~init__r243~0#1, main_~init__tmp___16~0#1, main_~init__r313~0#1, main_~init__tmp___17~0#1, main_~init__r323~0#1, main_~init__tmp___18~0#1, main_~init__r343~0#1, main_~init__tmp___19~0#1, main_~init__r413~0#1, main_~init__tmp___20~0#1, main_~init__r423~0#1, main_~init__tmp___21~0#1, main_~init__r433~0#1, main_~init__tmp___22~0#1, main_~init__tmp___23~0#1, main_~main__c1~0#1, main_~main__i2~0#1;assume { :end_inline_main } true; [2025-02-07 21:20:32,322 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2394: havoc main_~node3____CPAchecker_TMP_2~3#1;havoc main_~node3____CPAchecker_TMP_1~3#1;havoc main_~node3____CPAchecker_TMP_0~3#1; [2025-02-07 21:20:32,322 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2538: havoc main_~node2____CPAchecker_TMP_2~3#1;havoc main_~node2____CPAchecker_TMP_1~3#1;havoc main_~node2____CPAchecker_TMP_0~3#1; [2025-02-07 21:20:32,322 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:20:32,471 INFO L? ?]: Removed 582 outVars from TransFormulas that were not future-live. [2025-02-07 21:20:32,472 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:20:32,493 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:20:32,494 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:20:32,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:20:32 BoogieIcfgContainer [2025-02-07 21:20:32,494 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:20:32,496 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:20:32,496 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:20:32,500 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:20:32,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:20:29" (1/3) ... [2025-02-07 21:20:32,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143bf560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:20:32, skipping insertion in model container [2025-02-07 21:20:32,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:20:30" (2/3) ... [2025-02-07 21:20:32,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@143bf560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:20:32, skipping insertion in model container [2025-02-07 21:20:32,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:20:32" (3/3) ... [2025-02-07 21:20:32,502 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c [2025-02-07 21:20:32,512 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:20:32,515 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+nlh-reducer.c that has 1 procedures, 858 locations, 1 initial locations, 0 loop locations, and 1 error locations. [2025-02-07 21:20:32,562 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:20:32,570 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;@69dc8812, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:20:32,571 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 21:20:32,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 857 states, 566 states have (on average 1.9982332155477032) internal successors, (1131), 856 states have internal predecessors, (1131), 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 21:20:32,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2025-02-07 21:20:32,588 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:20:32,589 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 21:20:32,589 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 21:20:32,593 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:20:32,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1291585477, now seen corresponding path program 1 times [2025-02-07 21:20:32,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:20:32,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445709093] [2025-02-07 21:20:32,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:20:32,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:20:32,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 375 statements into 1 equivalence classes. [2025-02-07 21:20:32,989 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 375 of 375 statements. [2025-02-07 21:20:32,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:20:32,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:20:34,027 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 21:20:34,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:20:34,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445709093] [2025-02-07 21:20:34,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445709093] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:20:34,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:20:34,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-07 21:20:34,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259759158] [2025-02-07 21:20:34,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:20:34,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-07 21:20:34,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:20:34,051 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-07 21:20:34,051 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-07 21:20:34,054 INFO L87 Difference]: Start difference. First operand has 857 states, 566 states have (on average 1.9982332155477032) internal successors, (1131), 856 states have internal predecessors, (1131), 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 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 21:20:34,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:20:34,237 INFO L93 Difference]: Finished difference Result 861 states and 1131 transitions. [2025-02-07 21:20:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-07 21:20:34,239 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 375 [2025-02-07 21:20:34,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:20:34,243 INFO L225 Difference]: With dead ends: 861 [2025-02-07 21:20:34,243 INFO L226 Difference]: Without dead ends: 0 [2025-02-07 21:20:34,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-07 21:20:34,251 INFO L435 NwaCegarLoop]: 917 mSDtfsCounter, 42 mSDsluCounter, 1710 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-07 21:20:34,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 2627 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-07 21:20:34,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-07 21:20:34,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-07 21:20:34,273 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 21:20:34,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-07 21:20:34,277 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 375 [2025-02-07 21:20:34,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:20:34,279 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-07 21:20:34,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 62.5) internal successors, (375), 6 states have internal predecessors, (375), 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 21:20:34,279 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-07 21:20:34,279 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 21:20:34,281 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 21:20:34,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:20:34,284 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-07 21:20:34,286 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-07 21:20:34,292 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:20:34,303 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:20:34 BoogieIcfgContainer [2025-02-07 21:20:34,304 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:20:34,305 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:20:34,305 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:20:34,305 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:20:34,307 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:20:32" (3/4) ... [2025-02-07 21:20:34,308 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 21:20:34,341 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-07 21:20:34,344 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 21:20:34,346 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-07 21:20:34,349 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 21:20:34,510 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 21:20:34,510 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 21:20:34,510 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:20:34,512 INFO L158 Benchmark]: Toolchain (without parser) took 5185.65ms. Allocated memory was 167.8MB in the beginning and 285.2MB in the end (delta: 117.4MB). Free memory was 130.7MB in the beginning and 118.7MB in the end (delta: 12.1MB). Peak memory consumption was 126.4MB. Max. memory is 16.1GB. [2025-02-07 21:20:34,512 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:20:34,512 INFO L158 Benchmark]: CACSL2BoogieTranslator took 806.09ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 83.4MB in the end (delta: 46.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-07 21:20:34,513 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.11ms. Allocated memory is still 167.8MB. Free memory was 83.4MB in the beginning and 70.3MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:20:34,514 INFO L158 Benchmark]: Boogie Preprocessor took 118.41ms. Allocated memory is still 167.8MB. Free memory was 70.3MB in the beginning and 61.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:20:34,514 INFO L158 Benchmark]: IcfgBuilder took 2146.14ms. Allocated memory is still 167.8MB. Free memory was 61.6MB in the beginning and 81.9MB in the end (delta: -20.3MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2025-02-07 21:20:34,514 INFO L158 Benchmark]: TraceAbstraction took 1808.48ms. Allocated memory was 167.8MB in the beginning and 285.2MB in the end (delta: 117.4MB). Free memory was 80.6MB in the beginning and 146.3MB in the end (delta: -65.7MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. [2025-02-07 21:20:34,514 INFO L158 Benchmark]: Witness Printer took 205.44ms. Allocated memory is still 285.2MB. Free memory was 146.3MB in the beginning and 118.7MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 21:20:34,515 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 201.3MB. Free memory is still 126.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 806.09ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 83.4MB in the end (delta: 46.9MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.11ms. Allocated memory is still 167.8MB. Free memory was 83.4MB in the beginning and 70.3MB in the end (delta: 13.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 118.41ms. Allocated memory is still 167.8MB. Free memory was 70.3MB in the beginning and 61.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 2146.14ms. Allocated memory is still 167.8MB. Free memory was 61.6MB in the beginning and 81.9MB in the end (delta: -20.3MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1808.48ms. Allocated memory was 167.8MB in the beginning and 285.2MB in the end (delta: 117.4MB). Free memory was 80.6MB in the beginning and 146.3MB in the end (delta: -65.7MB). Peak memory consumption was 51.0MB. Max. memory is 16.1GB. * Witness Printer took 205.44ms. Allocated memory is still 285.2MB. Free memory was 146.3MB in the beginning and 118.7MB in the end (delta: 27.7MB). Peak memory consumption was 25.2MB. 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: 1867]: 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, 858 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 42 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 42 mSDsluCounter, 2627 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1710 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 83 IncrementalHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 917 mSDtfsCounter, 83 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=857occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 375 NumberOfCodeBlocks, 375 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 374 ConstructedInterpolants, 0 QuantifiedInterpolants, 556 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-07 21:20:34,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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