./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-20.i --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/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-20.i -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 e22f36fcb48e37029a5451272d2b65f2136f0249698c819249f45360edf16ac5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 00:37:12,433 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 00:37:12,494 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-08 00:37:12,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 00:37:12,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 00:37:12,521 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 00:37:12,523 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 00:37:12,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 00:37:12,523 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 00:37:12,524 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 00:37:12,524 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 00:37:12,524 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 00:37:12,525 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 00:37:12,525 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 00:37:12,525 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 00:37:12,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 00:37:12,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 00:37:12,526 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 00:37:12,526 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 00:37:12,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 00:37:12,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 00:37:12,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:37:12,527 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 00:37:12,527 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 00:37:12,527 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-08 00:37:12,527 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-08 00:37:12,528 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 00:37:12,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 00:37:12,528 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 00:37:12,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 00:37:12,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 00:37:12,528 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 00:37:12,528 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 -> e22f36fcb48e37029a5451272d2b65f2136f0249698c819249f45360edf16ac5 [2025-02-08 00:37:12,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 00:37:12,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 00:37:12,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 00:37:12,773 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 00:37:12,774 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 00:37:12,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-20.i [2025-02-08 00:37:13,887 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/78e784ec6/cf1dfbc35da64996aabed628567509e0/FLAG88fe7e22a [2025-02-08 00:37:14,233 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 00:37:14,233 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-20.i [2025-02-08 00:37:14,245 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/78e784ec6/cf1dfbc35da64996aabed628567509e0/FLAG88fe7e22a [2025-02-08 00:37:14,260 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/78e784ec6/cf1dfbc35da64996aabed628567509e0 [2025-02-08 00:37:14,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 00:37:14,263 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 00:37:14,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 00:37:14,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 00:37:14,269 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 00:37:14,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415ccde2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14, skipping insertion in model container [2025-02-08 00:37:14,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,291 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 00:37:14,385 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/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-20.i[916,929] [2025-02-08 00:37:14,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:37:14,481 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 00:37:14,490 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/hardness-nfm22/hardness_loopvsstraightlinecode_100-while_file-20.i[916,929] [2025-02-08 00:37:14,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 00:37:14,553 INFO L204 MainTranslator]: Completed translation [2025-02-08 00:37:14,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14 WrapperNode [2025-02-08 00:37:14,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 00:37:14,555 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 00:37:14,555 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 00:37:14,555 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 00:37:14,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,568 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,605 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 258 [2025-02-08 00:37:14,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 00:37:14,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 00:37:14,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 00:37:14,606 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 00:37:14,613 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,621 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,647 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]. [2025-02-08 00:37:14,648 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,660 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,665 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,672 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,677 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 00:37:14,677 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 00:37:14,678 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 00:37:14,678 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 00:37:14,679 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (1/1) ... [2025-02-08 00:37:14,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 00:37:14,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 00:37:14,703 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) [2025-02-08 00:37:14,706 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 [2025-02-08 00:37:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 00:37:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2025-02-08 00:37:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2025-02-08 00:37:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 00:37:14,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 00:37:14,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 00:37:14,799 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 00:37:14,800 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 00:37:15,203 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-1: assume false;assume false; [2025-02-08 00:37:15,203 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-1: assume !false; [2025-02-08 00:37:15,204 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L209: havoc __VERIFIER_assert_~cond#1;havoc __VERIFIER_assert_#in~cond#1;assume { :end_inline___VERIFIER_assert } true;havoc main_#t~ret29#1;~isInitial~0 := 0; [2025-02-08 00:37:15,204 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-2: assume 0 == __VERIFIER_assert_~cond#1; [2025-02-08 00:37:15,204 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L19-2: assume !(0 == __VERIFIER_assert_~cond#1); [2025-02-08 00:37:15,204 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L199: havoc property_#t~bitwise23#1;havoc property_#t~short24#1;havoc property_#t~ite27#1;havoc property_#t~ite26#1;havoc property_#t~bitwise25#1;havoc property_#t~short28#1;main_#t~ret29#1 := property_#res#1;havoc property_#t~bitwise23#1, property_#t~short24#1, property_#t~ite27#1, property_#t~ite26#1, property_#t~bitwise25#1, property_#t~short28#1;assume { :end_inline_property } true;assume -2147483648 <= main_#t~ret29#1 && main_#t~ret29#1 <= 2147483647;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := main_#t~ret29#1;havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; [2025-02-08 00:37:15,255 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2025-02-08 00:37:15,255 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 00:37:15,274 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 00:37:15,274 INFO L337 CfgBuilder]: Removed 2 assume(true) statements. [2025-02-08 00:37:15,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:37:15 BoogieIcfgContainer [2025-02-08 00:37:15,275 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 00:37:15,280 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 00:37:15,281 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 00:37:15,285 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 00:37:15,285 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 12:37:14" (1/3) ... [2025-02-08 00:37:15,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf8e9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:37:15, skipping insertion in model container [2025-02-08 00:37:15,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 12:37:14" (2/3) ... [2025-02-08 00:37:15,286 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cf8e9d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 12:37:15, skipping insertion in model container [2025-02-08 00:37:15,286 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:37:15" (3/3) ... [2025-02-08 00:37:15,287 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-while_file-20.i [2025-02-08 00:37:15,299 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 00:37:15,301 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_100-while_file-20.i that has 2 procedures, 107 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-02-08 00:37:15,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 00:37:15,361 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;@2ba02e38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 00:37:15,362 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-08 00:37:15,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-02-08 00:37:15,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-08 00:37:15,375 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-08 00:37:15,379 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-02-08 00:37:15,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 107 states, 73 states have (on average 1.452054794520548) internal successors, (106), 74 states have internal predecessors, (106), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2025-02-08 00:37:15,431 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 00:37:15,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 12:37:15 BoogieIcfgContainer [2025-02-08 00:37:15,441 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 00:37:15,442 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 00:37:15,443 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 00:37:15,443 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 00:37:15,443 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 12:37:15" (3/4) ... [2025-02-08 00:37:15,445 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 00:37:15,448 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2025-02-08 00:37:15,453 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2025-02-08 00:37:15,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-02-08 00:37:15,454 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-08 00:37:15,455 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 00:37:15,522 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 00:37:15,523 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 00:37:15,523 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 00:37:15,524 INFO L158 Benchmark]: Toolchain (without parser) took 1260.27ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 36.5MB in the end (delta: 86.8MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2025-02-08 00:37:15,524 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 00:37:15,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.79ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 106.6MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 00:37:15,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.92ms. Allocated memory is still 167.8MB. Free memory was 106.6MB in the beginning and 101.2MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 00:37:15,524 INFO L158 Benchmark]: Boogie Preprocessor took 70.61ms. Allocated memory is still 167.8MB. Free memory was 101.2MB in the beginning and 92.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 00:37:15,525 INFO L158 Benchmark]: IcfgBuilder took 597.26ms. Allocated memory is still 167.8MB. Free memory was 92.8MB in the beginning and 56.3MB in the end (delta: 36.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-02-08 00:37:15,525 INFO L158 Benchmark]: TraceAbstraction took 160.89ms. Allocated memory is still 167.8MB. Free memory was 56.3MB in the beginning and 45.2MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 00:37:15,525 INFO L158 Benchmark]: Witness Printer took 81.22ms. Allocated memory is still 167.8MB. Free memory was 45.2MB in the beginning and 36.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 00:37:15,526 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 201.3MB. Free memory is still 115.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.79ms. Allocated memory is still 167.8MB. Free memory was 123.3MB in the beginning and 106.6MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.92ms. Allocated memory is still 167.8MB. Free memory was 106.6MB in the beginning and 101.2MB in the end (delta: 5.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.61ms. Allocated memory is still 167.8MB. Free memory was 101.2MB in the beginning and 92.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 597.26ms. Allocated memory is still 167.8MB. Free memory was 92.8MB in the beginning and 56.3MB in the end (delta: 36.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 160.89ms. Allocated memory is still 167.8MB. Free memory was 56.3MB in the beginning and 45.2MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 81.22ms. Allocated memory is still 167.8MB. Free memory was 45.2MB in the beginning and 36.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. 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: 19]: 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 2 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: 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! [2025-02-08 00:37:15,540 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