./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.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.3.1.ufo.BOUNDED-6.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 0f65231614a0bb06d166a117ae6b0891975cceefd0cbaa82222551bd46667e23 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 21:23:39,997 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 21:23:40,064 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 21:23:40,069 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 21:23:40,069 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 21:23:40,098 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 21:23:40,099 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 21:23:40,099 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 21:23:40,099 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 21:23:40,100 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 21:23:40,100 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 21:23:40,101 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 21:23:40,101 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 21:23:40,101 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 21:23:40,101 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 21:23:40,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 21:23:40,101 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 21:23:40,101 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 21:23:40,102 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 21:23:40,102 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 21:23:40,102 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 21:23:40,102 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 21:23:40,102 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 21:23:40,102 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 21:23:40,103 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 21:23:40,103 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 21:23:40,103 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 21:23:40,103 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 21:23:40,103 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 21:23:40,103 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 21:23:40,103 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 21:23:40,103 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 21:23:40,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:23:40,104 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 21:23:40,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 21:23:40,104 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 21:23:40,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 21:23:40,104 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 21:23:40,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 21:23:40,105 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 21:23:40,105 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 21:23:40,105 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 21:23:40,105 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 21:23:40,105 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 -> 0f65231614a0bb06d166a117ae6b0891975cceefd0cbaa82222551bd46667e23 [2025-02-07 21:23:40,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 21:23:40,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 21:23:40,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 21:23:40,412 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 21:23:40,413 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 21:23:40,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2025-02-07 21:23:41,711 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c266b6042/3a61fe1e54594e47bcc8dd4fb42a181e/FLAG85ed42676 [2025-02-07 21:23:42,088 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 21:23:42,089 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2025-02-07 21:23:42,101 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c266b6042/3a61fe1e54594e47bcc8dd4fb42a181e/FLAG85ed42676 [2025-02-07 21:23:42,276 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c266b6042/3a61fe1e54594e47bcc8dd4fb42a181e [2025-02-07 21:23:42,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 21:23:42,279 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 21:23:42,280 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 21:23:42,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 21:23:42,283 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 21:23:42,284 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:42,284 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55d62bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42, skipping insertion in model container [2025-02-07 21:23:42,284 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:42,329 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 21:23:42,609 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15445,15458] [2025-02-07 21:23:42,620 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16092,16105] [2025-02-07 21:23:42,634 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17433,17446] [2025-02-07 21:23:42,641 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18493,18506] [2025-02-07 21:23:42,686 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[27778,27791] [2025-02-07 21:23:42,725 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:23:42,745 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 21:23:42,839 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[15445,15458] [2025-02-07 21:23:42,842 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[16092,16105] [2025-02-07 21:23:42,850 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[17433,17446] [2025-02-07 21:23:42,857 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[18493,18506] [2025-02-07 21:23:42,891 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.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c[27778,27791] [2025-02-07 21:23:42,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 21:23:42,937 INFO L204 MainTranslator]: Completed translation [2025-02-07 21:23:42,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42 WrapperNode [2025-02-07 21:23:42,937 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 21:23:42,938 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 21:23:42,938 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 21:23:42,939 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 21:23:42,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:42,960 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:43,012 INFO L138 Inliner]: procedures = 22, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1774 [2025-02-07 21:23:43,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 21:23:43,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 21:23:43,013 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 21:23:43,013 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 21:23:43,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:43,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:43,028 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:43,063 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 21:23:43,063 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:43,063 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:43,089 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:43,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:43,101 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:43,103 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:43,113 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 21:23:43,114 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 21:23:43,115 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 21:23:43,115 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 21:23:43,116 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (1/1) ... [2025-02-07 21:23:43,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 21:23:43,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 21:23:43,144 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 21:23:43,147 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 21:23:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 21:23:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 21:23:43,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 21:23:43,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 21:23:43,311 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 21:23:43,313 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 21:23:44,552 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1028: havoc main_~__tmp_6~0#1, main_~assert__arg~5#1;havoc main_~check__tmp~5#1; [2025-02-07 21:23:44,552 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1501: havoc main_~node2____CPAchecker_TMP_1~2#1;havoc main_~node2____CPAchecker_TMP_0~2#1; [2025-02-07 21:23:44,552 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L974: havoc main_~node3__newmax~4#1; [2025-02-07 21:23:44,552 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1900: havoc main_~__tmp_8~0#1, main_~assert__arg~7#1;havoc main_~check__tmp~8#1; [2025-02-07 21:23:44,552 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1177: havoc main_~node3__newmax~5#1; [2025-02-07 21:23:44,552 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1111: havoc main_~node1__newmax~4#1;havoc main_~main____CPAchecker_TMP_0~3#1;havoc main_~__tmp_7~0#1, main_~assert__arg~6#1;havoc main_~check__tmp~6#1; [2025-02-07 21:23:44,552 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2105: havoc main_~check__tmp~10#1; [2025-02-07 21:23:44,552 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L920: havoc main_~__tmp_5~0#1, main_~assert__arg~4#1;havoc main_~check__tmp~4#1; [2025-02-07 21:23:44,552 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1846: havoc main_~node3__newmax~6#1; [2025-02-07 21:23:44,553 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L790: havoc main_~node2__newmax~3#1; [2025-02-07 21:23:44,553 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1386: havoc main_~node3____CPAchecker_TMP_1~2#1;havoc main_~node3____CPAchecker_TMP_0~2#1; [2025-02-07 21:23:44,553 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2062: havoc main_~node3__newmax~7#1; [2025-02-07 21:23:44,553 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L875: havoc main_~__tmp_4~0#1, main_~assert__arg~3#1;havoc main_~check__tmp~3#1; [2025-02-07 21:23:44,553 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1934: havoc main_~check__tmp~9#1; [2025-02-07 21:23:44,553 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1144: havoc main_~node2__newmax~4#1; [2025-02-07 21:23:44,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 21:23:44,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L821: havoc main_~node3__newmax~3#1; [2025-02-07 21:23:44,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1616: havoc main_~node1____CPAchecker_TMP_1~2#1;havoc main_~node1____CPAchecker_TMP_0~2#1; [2025-02-07 21:23:44,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1815: havoc main_~node2__newmax~5#1; [2025-02-07 21:23:44,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L759: havoc main_~node1__newmax~3#1;havoc main_~main____CPAchecker_TMP_0~2#1;havoc main_~__tmp_3~0#1, main_~assert__arg~2#1;havoc main_~check__tmp~2#1;havoc main_~node3____CPAchecker_TMP_1~1#1;havoc main_~node3____CPAchecker_TMP_0~1#1;havoc main_~node3__newmax~2#1;havoc main_~node2____CPAchecker_TMP_1~1#1;havoc main_~node2____CPAchecker_TMP_0~1#1;havoc main_~node2__newmax~2#1;havoc main_~node1____CPAchecker_TMP_1~1#1;havoc main_~node1____CPAchecker_TMP_0~1#1;havoc main_~node1__newmax~2#1;havoc main_~main____CPAchecker_TMP_0~1#1;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;havoc main_~node1__newmax~1#1;havoc main_~main____CPAchecker_TMP_0~0#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_4~0#1, main_~assert__arg~3#1, main_~check__tmp~3#1, main_~__tmp_5~0#1, main_~assert__arg~4#1, main_~check__tmp~4#1, main_~node3__newmax~3#1, main_~__tmp_6~0#1, main_~assert__arg~5#1, main_~check__tmp~5#1, main_~check__tmp~7#1, main_~node3____CPAchecker_TMP_1~2#1, main_~node3____CPAchecker_TMP_0~2#1, main_~node3__newmax~5#1, main_~node2____CPAchecker_TMP_1~2#1, main_~node2____CPAchecker_TMP_0~2#1, main_~node2__newmax~4#1, main_~node1____CPAchecker_TMP_1~2#1, main_~node1____CPAchecker_TMP_0~2#1, main_~node1__newmax~4#1, main_~main____CPAchecker_TMP_0~3#1, main_~__tmp_7~0#1, main_~assert__arg~6#1, main_~check__tmp~6#1, main_~node3__newmax~4#1, main_~node2__newmax~3#1, main_~__tmp_8~0#1, main_~assert__arg~7#1, main_~check__tmp~8#1, main_~check__tmp~9#1, main_~node3__newmax~6#1, main_~check__tmp~10#1, main_~check__tmp~11#1, main_~node3__newmax~7#1, main_~node2__newmax~5#1, main_~node1__newmax~3#1, main_~main____CPAchecker_TMP_0~2#1, main_~__tmp_3~0#1, main_~assert__arg~2#1, main_~check__tmp~2#1, main_~node3____CPAchecker_TMP_1~1#1, main_~node3____CPAchecker_TMP_0~1#1, main_~node3__newmax~2#1, main_~node2____CPAchecker_TMP_1~1#1, main_~node2____CPAchecker_TMP_0~1#1, main_~node2__newmax~2#1, main_~node1____CPAchecker_TMP_1~1#1, main_~node1____CPAchecker_TMP_0~1#1, main_~node1__newmax~2#1, main_~main____CPAchecker_TMP_0~1#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_~node1__newmax~1#1, main_~main____CPAchecker_TMP_0~0#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 21:23:44,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1222: havoc main_~check__tmp~7#1; [2025-02-07 21:23:44,554 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2213: havoc main_~check__tmp~11#1; [2025-02-07 21:23:44,657 INFO L? ?]: Removed 345 outVars from TransFormulas that were not future-live. [2025-02-07 21:23:44,657 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 21:23:44,684 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 21:23:44,684 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 21:23:44,687 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:23:44 BoogieIcfgContainer [2025-02-07 21:23:44,687 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 21:23:44,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 21:23:44,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 21:23:44,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 21:23:44,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 09:23:42" (1/3) ... [2025-02-07 21:23:44,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32aff812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:23:44, skipping insertion in model container [2025-02-07 21:23:44,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 09:23:42" (2/3) ... [2025-02-07 21:23:44,694 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32aff812 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 09:23:44, skipping insertion in model container [2025-02-07 21:23:44,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:23:44" (3/3) ... [2025-02-07 21:23:44,696 INFO L128 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c [2025-02-07 21:23:44,730 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 21:23:44,734 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pals_opt-floodmax.3.1.ufo.BOUNDED-6.pals.c.v+lhb-reducer.c that has 1 procedures, 449 locations, 1 initial locations, 0 loop locations, and 5 error locations. [2025-02-07 21:23:44,806 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 21:23:44,821 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;@20339170, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 21:23:44,822 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-02-07 21:23:44,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 448 states, 323 states have (on average 1.9969040247678018) internal successors, (645), 447 states have internal predecessors, (645), 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 21:23:44,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2025-02-07 21:23:44,842 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:23:44,842 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] [2025-02-07 21:23:44,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-02-07 21:23:44,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:23:44,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1491359999, now seen corresponding path program 1 times [2025-02-07 21:23:44,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:23:44,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201019600] [2025-02-07 21:23:44,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:23:44,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:23:44,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-02-07 21:23:45,279 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-02-07 21:23:45,280 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:23:45,280 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:23:49,025 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 21:23:49,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:23:49,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201019600] [2025-02-07 21:23:49,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201019600] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:23:49,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:23:49,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-02-07 21:23:49,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400290504] [2025-02-07 21:23:49,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:23:49,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-07 21:23:49,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:23:49,053 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-07 21:23:49,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2025-02-07 21:23:49,057 INFO L87 Difference]: Start difference. First operand has 448 states, 323 states have (on average 1.9969040247678018) internal successors, (645), 447 states have internal predecessors, (645), 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 17 states, 17 states have (on average 10.058823529411764) internal successors, (171), 17 states have internal predecessors, (171), 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 21:23:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:23:50,260 INFO L93 Difference]: Finished difference Result 474 states and 645 transitions. [2025-02-07 21:23:50,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-02-07 21:23:50,262 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 10.058823529411764) internal successors, (171), 17 states have internal predecessors, (171), 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 171 [2025-02-07 21:23:50,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:23:50,271 INFO L225 Difference]: With dead ends: 474 [2025-02-07 21:23:50,271 INFO L226 Difference]: Without dead ends: 195 [2025-02-07 21:23:50,278 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=366, Invalid=966, Unknown=0, NotChecked=0, Total=1332 [2025-02-07 21:23:50,281 INFO L435 NwaCegarLoop]: 505 mSDtfsCounter, 2836 mSDsluCounter, 2587 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2836 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-02-07 21:23:50,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2836 Valid, 3092 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-02-07 21:23:50,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2025-02-07 21:23:50,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2025-02-07 21:23:50,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 192 states have (on average 1.0104166666666667) internal successors, (194), 194 states have internal predecessors, (194), 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 21:23:50,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 194 transitions. [2025-02-07 21:23:50,326 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 194 transitions. Word has length 171 [2025-02-07 21:23:50,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:23:50,329 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 194 transitions. [2025-02-07 21:23:50,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.058823529411764) internal successors, (171), 17 states have internal predecessors, (171), 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 21:23:50,330 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 194 transitions. [2025-02-07 21:23:50,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2025-02-07 21:23:50,331 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:23:50,331 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] [2025-02-07 21:23:50,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 21:23:50,332 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-02-07 21:23:50,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:23:50,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1998405374, now seen corresponding path program 1 times [2025-02-07 21:23:50,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:23:50,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625741864] [2025-02-07 21:23:50,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:23:50,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:23:50,375 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-02-07 21:23:50,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-02-07 21:23:50,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:23:50,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:23:52,507 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 21:23:52,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:23:52,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625741864] [2025-02-07 21:23:52,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625741864] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:23:52,507 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:23:52,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2025-02-07 21:23:52,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250175527] [2025-02-07 21:23:52,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:23:52,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2025-02-07 21:23:52,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:23:52,510 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2025-02-07 21:23:52,510 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2025-02-07 21:23:52,510 INFO L87 Difference]: Start difference. First operand 195 states and 194 transitions. Second operand has 17 states, 17 states have (on average 10.058823529411764) internal successors, (171), 17 states have internal predecessors, (171), 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 21:23:53,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:23:53,081 INFO L93 Difference]: Finished difference Result 195 states and 194 transitions. [2025-02-07 21:23:53,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-07 21:23:53,082 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 10.058823529411764) internal successors, (171), 17 states have internal predecessors, (171), 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 171 [2025-02-07 21:23:53,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:23:53,083 INFO L225 Difference]: With dead ends: 195 [2025-02-07 21:23:53,083 INFO L226 Difference]: Without dead ends: 184 [2025-02-07 21:23:53,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=249, Invalid=681, Unknown=0, NotChecked=0, Total=930 [2025-02-07 21:23:53,085 INFO L435 NwaCegarLoop]: 154 mSDtfsCounter, 408 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1184 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-07 21:23:53,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 1184 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-07 21:23:53,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2025-02-07 21:23:53,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2025-02-07 21:23:53,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 182 states have (on average 1.0054945054945055) internal successors, (183), 183 states have internal predecessors, (183), 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 21:23:53,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 183 transitions. [2025-02-07 21:23:53,092 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 183 transitions. Word has length 171 [2025-02-07 21:23:53,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:23:53,092 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 183 transitions. [2025-02-07 21:23:53,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 10.058823529411764) internal successors, (171), 17 states have internal predecessors, (171), 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 21:23:53,092 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 183 transitions. [2025-02-07 21:23:53,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2025-02-07 21:23:53,094 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:23:53,094 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] [2025-02-07 21:23:53,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 21:23:53,094 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-02-07 21:23:53,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:23:53,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1742558129, now seen corresponding path program 1 times [2025-02-07 21:23:53,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:23:53,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061653560] [2025-02-07 21:23:53,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:23:53,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:23:53,135 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 171 statements into 1 equivalence classes. [2025-02-07 21:23:53,178 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 171 of 171 statements. [2025-02-07 21:23:53,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:23:53,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:23:54,933 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 21:23:54,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:23:54,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061653560] [2025-02-07 21:23:54,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061653560] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:23:54,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:23:54,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2025-02-07 21:23:54,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748355605] [2025-02-07 21:23:54,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:23:54,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2025-02-07 21:23:54,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:23:54,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2025-02-07 21:23:54,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2025-02-07 21:23:54,936 INFO L87 Difference]: Start difference. First operand 184 states and 183 transitions. Second operand has 18 states, 18 states have (on average 9.5) internal successors, (171), 18 states have internal predecessors, (171), 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 21:23:55,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:23:55,425 INFO L93 Difference]: Finished difference Result 184 states and 183 transitions. [2025-02-07 21:23:55,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-02-07 21:23:55,425 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.5) internal successors, (171), 18 states have internal predecessors, (171), 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 171 [2025-02-07 21:23:55,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:23:55,427 INFO L225 Difference]: With dead ends: 184 [2025-02-07 21:23:55,429 INFO L226 Difference]: Without dead ends: 180 [2025-02-07 21:23:55,430 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=261, Invalid=731, Unknown=0, NotChecked=0, Total=992 [2025-02-07 21:23:55,430 INFO L435 NwaCegarLoop]: 150 mSDtfsCounter, 512 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 512 SdHoareTripleChecker+Valid, 943 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-07 21:23:55,430 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [512 Valid, 943 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-07 21:23:55,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2025-02-07 21:23:55,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2025-02-07 21:23:55,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.0) internal successors, (179), 179 states have internal predecessors, (179), 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 21:23:55,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 179 transitions. [2025-02-07 21:23:55,441 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 179 transitions. Word has length 171 [2025-02-07 21:23:55,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:23:55,442 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 179 transitions. [2025-02-07 21:23:55,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.5) internal successors, (171), 18 states have internal predecessors, (171), 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 21:23:55,443 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 179 transitions. [2025-02-07 21:23:55,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-02-07 21:23:55,446 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 21:23:55,446 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 21:23:55,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-07 21:23:55,446 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2025-02-07 21:23:55,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 21:23:55,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1533073958, now seen corresponding path program 1 times [2025-02-07 21:23:55,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 21:23:55,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838542021] [2025-02-07 21:23:55,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 21:23:55,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 21:23:55,477 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-02-07 21:23:55,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-02-07 21:23:55,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 21:23:55,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 21:23:55,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 21:23:55,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 21:23:55,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838542021] [2025-02-07 21:23:55,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [838542021] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 21:23:55,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 21:23:55,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-07 21:23:55,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485865627] [2025-02-07 21:23:55,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 21:23:55,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-07 21:23:55,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 21:23:55,585 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-07 21:23:55,585 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 21:23:55,585 INFO L87 Difference]: Start difference. First operand 180 states and 179 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 21:23:55,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 21:23:55,622 INFO L93 Difference]: Finished difference Result 180 states and 179 transitions. [2025-02-07 21:23:55,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-07 21:23:55,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 179 [2025-02-07 21:23:55,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 21:23:55,623 INFO L225 Difference]: With dead ends: 180 [2025-02-07 21:23:55,623 INFO L226 Difference]: Without dead ends: 0 [2025-02-07 21:23:55,624 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-07 21:23:55,625 INFO L435 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 21:23:55,625 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 21:23:55,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-07 21:23:55,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-07 21:23:55,628 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 21:23:55,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-07 21:23:55,628 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2025-02-07 21:23:55,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 21:23:55,628 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-07 21:23:55,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 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 21:23:55,629 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-07 21:23:55,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 21:23:55,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-02-07 21:23:55,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2025-02-07 21:23:55,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2025-02-07 21:23:55,631 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2025-02-07 21:23:55,632 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2025-02-07 21:23:55,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-07 21:23:55,636 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-07 21:23:55,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-07 21:23:55,643 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 21:23:55,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 09:23:55 BoogieIcfgContainer [2025-02-07 21:23:55,651 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 21:23:55,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 21:23:55,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 21:23:55,652 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 21:23:55,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 09:23:44" (3/4) ... [2025-02-07 21:23:55,655 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 21:23:55,683 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-07 21:23:55,685 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 21:23:55,686 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-07 21:23:55,688 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 21:23:55,854 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 21:23:55,854 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 21:23:55,855 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 21:23:55,856 INFO L158 Benchmark]: Toolchain (without parser) took 13576.15ms. Allocated memory was 142.6MB in the beginning and 562.0MB in the end (delta: 419.4MB). Free memory was 110.7MB in the beginning and 513.1MB in the end (delta: -402.3MB). Peak memory consumption was 343.5MB. Max. memory is 16.1GB. [2025-02-07 21:23:55,856 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 21:23:55,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 657.28ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 76.7MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-07 21:23:55,857 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.86ms. Allocated memory is still 142.6MB. Free memory was 76.7MB in the beginning and 69.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:23:55,857 INFO L158 Benchmark]: Boogie Preprocessor took 100.79ms. Allocated memory is still 142.6MB. Free memory was 69.4MB in the beginning and 63.1MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 21:23:55,857 INFO L158 Benchmark]: IcfgBuilder took 1573.23ms. Allocated memory is still 142.6MB. Free memory was 63.1MB in the beginning and 50.6MB in the end (delta: 12.5MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. [2025-02-07 21:23:55,857 INFO L158 Benchmark]: TraceAbstraction took 10962.28ms. Allocated memory was 142.6MB in the beginning and 562.0MB in the end (delta: 419.4MB). Free memory was 49.7MB in the beginning and 204.5MB in the end (delta: -154.8MB). Peak memory consumption was 267.9MB. Max. memory is 16.1GB. [2025-02-07 21:23:55,857 INFO L158 Benchmark]: Witness Printer took 202.92ms. Allocated memory is still 562.0MB. Free memory was 204.5MB in the beginning and 513.1MB in the end (delta: -308.5MB). Peak memory consumption was 17.3MB. Max. memory is 16.1GB. [2025-02-07 21:23:55,859 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 201.3MB. Free memory is still 126.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 657.28ms. Allocated memory is still 142.6MB. Free memory was 110.7MB in the beginning and 76.7MB in the end (delta: 34.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.86ms. Allocated memory is still 142.6MB. Free memory was 76.7MB in the beginning and 69.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.79ms. Allocated memory is still 142.6MB. Free memory was 69.4MB in the beginning and 63.1MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 1573.23ms. Allocated memory is still 142.6MB. Free memory was 63.1MB in the beginning and 50.6MB in the end (delta: 12.5MB). Peak memory consumption was 39.6MB. Max. memory is 16.1GB. * TraceAbstraction took 10962.28ms. Allocated memory was 142.6MB in the beginning and 562.0MB in the end (delta: 419.4MB). Free memory was 49.7MB in the beginning and 204.5MB in the end (delta: -154.8MB). Peak memory consumption was 267.9MB. Max. memory is 16.1GB. * Witness Printer took 202.92ms. Allocated memory is still 562.0MB. Free memory was 204.5MB in the beginning and 513.1MB in the end (delta: -308.5MB). Peak memory consumption was 17.3MB. 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: 882]: 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: 927]: 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: 1035]: 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: 1102]: 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: 1907]: 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, 449 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 10.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3756 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3756 mSDsluCounter, 5525 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4543 mSDsCounter, 253 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1232 IncrementalHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 253 mSolverCounterUnsat, 982 mSDtfsCounter, 1232 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=448occurred in iteration=0, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 692 NumberOfCodeBlocks, 692 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 688 ConstructedInterpolants, 0 QuantifiedInterpolants, 4361 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 5 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-07 21:23:55,879 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