./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive/McCarthy91-1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/McCarthy91-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 18:13:37,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:13:37,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:13:37,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:13:37,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:13:37,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:13:37,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:13:37,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:13:37,074 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:13:37,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:13:37,075 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:13:37,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:13:37,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:13:37,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:13:37,077 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:13:37,078 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:13:37,079 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:13:37,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:13:37,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:13:37,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:13:37,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:13:37,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:13:37,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:13:37,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:13:37,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:13:37,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:13:37,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:13:37,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:13:37,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:13:37,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:13:37,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:13:37,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:13:37,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:13:37,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:13:37,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:13:37,105 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:13:37,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:13:37,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:13:37,106 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:13:37,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:13:37,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:13:37,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 18:13:37,132 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:13:37,132 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:13:37,133 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:13:37,133 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:13:37,134 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:13:37,134 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:13:37,136 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:13:37,136 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:13:37,136 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:13:37,136 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:13:37,137 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:13:37,137 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 18:13:37,137 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:13:37,137 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:13:37,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:13:37,138 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:13:37,138 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:13:37,138 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:13:37,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:13:37,139 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:13:37,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:13:37,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:13:37,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:13:37,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:13:37,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:13:37,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:13:37,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:13:37,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:13:37,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 18:13:37,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 18:13:37,141 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:13:37,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:13:37,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:13:37,142 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 [2022-02-20 18:13:37,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:13:37,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:13:37,379 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:13:37,380 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:13:37,381 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:13:37,382 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/McCarthy91-1.c [2022-02-20 18:13:37,429 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb778e0e/f75ed76e12a54e6387525d73547afecf/FLAG46c241df9 [2022-02-20 18:13:37,795 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:13:37,796 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c [2022-02-20 18:13:37,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb778e0e/f75ed76e12a54e6387525d73547afecf/FLAG46c241df9 [2022-02-20 18:13:38,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb778e0e/f75ed76e12a54e6387525d73547afecf [2022-02-20 18:13:38,227 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:13:38,228 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:13:38,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:13:38,229 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:13:38,236 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:13:38,237 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d554236 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38, skipping insertion in model container [2022-02-20 18:13:38,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,242 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:13:38,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:13:38,375 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2022-02-20 18:13:38,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:13:38,387 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:13:38,398 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2022-02-20 18:13:38,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:13:38,410 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:13:38,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38 WrapperNode [2022-02-20 18:13:38,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:13:38,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:13:38,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:13:38,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:13:38,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,435 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2022-02-20 18:13:38,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:13:38,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:13:38,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:13:38,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:13:38,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:13:38,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:13:38,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:13:38,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:13:38,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38" (1/1) ... [2022-02-20 18:13:38,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:13:38,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:13:38,491 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 18:13:38,496 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 18:13:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:13:38,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:13:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:13:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 18:13:38,515 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2022-02-20 18:13:38,515 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2022-02-20 18:13:38,551 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:13:38,552 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:13:38,645 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:13:38,650 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:13:38,650 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 18:13:38,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:13:38 BoogieIcfgContainer [2022-02-20 18:13:38,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:13:38,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:13:38,653 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:13:38,655 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:13:38,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:13:38" (1/3) ... [2022-02-20 18:13:38,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581ede25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:13:38, skipping insertion in model container [2022-02-20 18:13:38,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:38" (2/3) ... [2022-02-20 18:13:38,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@581ede25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:13:38, skipping insertion in model container [2022-02-20 18:13:38,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:13:38" (3/3) ... [2022-02-20 18:13:38,657 INFO L111 eAbstractionObserver]: Analyzing ICFG McCarthy91-1.c [2022-02-20 18:13:38,660 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:13:38,660 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:13:38,688 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:13:38,692 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 18:13:38,693 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:13:38,705 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-20 18:13:38,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 18:13:38,708 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:13:38,709 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 18:13:38,709 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:13:38,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:13:38,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1165457142, now seen corresponding path program 1 times [2022-02-20 18:13:38,719 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 18:13:38,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161873839] [2022-02-20 18:13:38,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:13:38,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 18:13:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:13:38,786 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 18:13:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:13:38,817 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 18:13:38,819 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 18:13:38,820 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 18:13:38,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 18:13:38,824 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 18:13:38,827 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 18:13:38,834 FATAL L489 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call #t~ret7 := f91(~x~0); [2022-02-20 18:13:38,834 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: callstack broken after backtranslation by InlinerBacktranslator at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:607) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-20 18:13:38,845 INFO L158 Benchmark]: Toolchain (without parser) took 616.59ms. Allocated memory is still 92.3MB. Free memory was 58.9MB in the beginning and 42.3MB in the end (delta: 16.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-02-20 18:13:38,845 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 75.5MB. Free memory was 53.8MB in the beginning and 53.8MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:13:38,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 181.95ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 69.1MB in the end (delta: -10.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-02-20 18:13:38,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.35ms. Allocated memory is still 92.3MB. Free memory was 69.1MB in the beginning and 67.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 18:13:38,847 INFO L158 Benchmark]: Boogie Preprocessor took 19.03ms. Allocated memory is still 92.3MB. Free memory was 67.7MB in the beginning and 66.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:13:38,847 INFO L158 Benchmark]: RCFGBuilder took 195.95ms. Allocated memory is still 92.3MB. Free memory was 66.5MB in the beginning and 56.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 18:13:38,848 INFO L158 Benchmark]: TraceAbstraction took 191.13ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 42.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-02-20 18:13:38,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 75.5MB. Free memory was 53.8MB in the beginning and 53.8MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 181.95ms. Allocated memory is still 92.3MB. Free memory was 58.7MB in the beginning and 69.1MB in the end (delta: -10.4MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.35ms. Allocated memory is still 92.3MB. Free memory was 69.1MB in the beginning and 67.7MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.03ms. Allocated memory is still 92.3MB. Free memory was 67.7MB in the beginning and 66.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 195.95ms. Allocated memory is still 92.3MB. Free memory was 66.5MB in the beginning and 56.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 191.13ms. Allocated memory is still 92.3MB. Free memory was 56.2MB in the beginning and 42.3MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. 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 - ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: callstack broken after backtranslation by InlinerBacktranslator: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-20 18:13:38,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/McCarthy91-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 18:13:40,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 18:13:40,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 18:13:40,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 18:13:40,866 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 18:13:40,869 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 18:13:40,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 18:13:40,874 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 18:13:40,876 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 18:13:40,881 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 18:13:40,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 18:13:40,882 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 18:13:40,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 18:13:40,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 18:13:40,885 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 18:13:40,886 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 18:13:40,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 18:13:40,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 18:13:40,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 18:13:40,892 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 18:13:40,896 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 18:13:40,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 18:13:40,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 18:13:40,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 18:13:40,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 18:13:40,906 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 18:13:40,906 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 18:13:40,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 18:13:40,908 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 18:13:40,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 18:13:40,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 18:13:40,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 18:13:40,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 18:13:40,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 18:13:40,911 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 18:13:40,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 18:13:40,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 18:13:40,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 18:13:40,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 18:13:40,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 18:13:40,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 18:13:40,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 18:13:40,935 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 18:13:40,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 18:13:40,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 18:13:40,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 18:13:40,939 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 18:13:40,939 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 18:13:40,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 18:13:40,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 18:13:40,941 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 18:13:40,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 18:13:40,941 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 18:13:40,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 18:13:40,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 18:13:40,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 18:13:40,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 18:13:40,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 18:13:40,942 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 18:13:40,942 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 18:13:40,943 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 18:13:40,943 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 18:13:40,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 18:13:40,943 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 18:13:40,943 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 18:13:40,943 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 18:13:40,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 18:13:40,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 18:13:40,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:13:40,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 18:13:40,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 18:13:40,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 18:13:40,945 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 18:13:40,945 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 18:13:40,945 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 18:13:40,945 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 18:13:40,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 18:13:40,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 18:13:40,946 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a7241ade69e14c61e98aa837796de568ecf31fbd07f5084e15c262d93cdb3376 [2022-02-20 18:13:41,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 18:13:41,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 18:13:41,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 18:13:41,213 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 18:13:41,214 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 18:13:41,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/McCarthy91-1.c [2022-02-20 18:13:41,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e578baed/ce756d0a4e584051b8f9a44af3073fe8/FLAG56bdaab02 [2022-02-20 18:13:41,615 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 18:13:41,615 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c [2022-02-20 18:13:41,620 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e578baed/ce756d0a4e584051b8f9a44af3073fe8/FLAG56bdaab02 [2022-02-20 18:13:41,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e578baed/ce756d0a4e584051b8f9a44af3073fe8 [2022-02-20 18:13:41,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 18:13:41,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 18:13:41,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 18:13:41,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 18:13:41,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 18:13:41,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ddf2966 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41, skipping insertion in model container [2022-02-20 18:13:41,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 18:13:41,659 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 18:13:41,756 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2022-02-20 18:13:41,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:13:41,765 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 18:13:41,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/McCarthy91-1.c[749,762] [2022-02-20 18:13:41,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 18:13:41,828 INFO L208 MainTranslator]: Completed translation [2022-02-20 18:13:41,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41 WrapperNode [2022-02-20 18:13:41,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 18:13:41,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 18:13:41,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 18:13:41,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 18:13:41,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,851 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2022-02-20 18:13:41,851 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 18:13:41,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 18:13:41,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 18:13:41,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 18:13:41,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 18:13:41,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 18:13:41,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 18:13:41,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 18:13:41,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41" (1/1) ... [2022-02-20 18:13:41,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 18:13:41,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 18:13:41,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 18:13:41,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 18:13:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 18:13:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 18:13:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 18:13:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 18:13:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2022-02-20 18:13:41,935 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2022-02-20 18:13:41,976 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 18:13:41,977 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 18:13:42,055 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 18:13:42,060 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 18:13:42,060 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 18:13:42,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:13:42 BoogieIcfgContainer [2022-02-20 18:13:42,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 18:13:42,063 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 18:13:42,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 18:13:42,064 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 18:13:42,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 06:13:41" (1/3) ... [2022-02-20 18:13:42,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614c6f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:13:42, skipping insertion in model container [2022-02-20 18:13:42,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 06:13:41" (2/3) ... [2022-02-20 18:13:42,066 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@614c6f14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 06:13:42, skipping insertion in model container [2022-02-20 18:13:42,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 06:13:42" (3/3) ... [2022-02-20 18:13:42,067 INFO L111 eAbstractionObserver]: Analyzing ICFG McCarthy91-1.c [2022-02-20 18:13:42,070 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 18:13:42,070 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 18:13:42,098 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 18:13:42,139 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 18:13:42,139 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 18:13:42,167 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-20 18:13:42,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 18:13:42,170 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 18:13:42,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 18:13:42,171 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 18:13:42,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 18:13:42,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1385746507, now seen corresponding path program 1 times [2022-02-20 18:13:42,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 18:13:42,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [101155214] [2022-02-20 18:13:42,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 18:13:42,206 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 18:13:42,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 18:13:42,220 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 18:13:42,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 18:13:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:13:42,279 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 18:13:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 18:13:42,313 INFO L138 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-02-20 18:13:42,315 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 18:13:42,316 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 18:13:42,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 18:13:42,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 18:13:42,527 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 18:13:42,529 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 18:13:42,537 FATAL L489 DefaultTranslator]: Callstack has procedure call flag but succeeding procedure is empty at [CALL] call #t~ret7 := f91(~x~0); [2022-02-20 18:13:42,538 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: callstack broken after backtranslation by InlinerBacktranslator at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155) at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:607) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:182) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-20 18:13:42,542 INFO L158 Benchmark]: Toolchain (without parser) took 903.88ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 31.7MB in the beginning and 48.6MB in the end (delta: -17.0MB). Peak memory consumption was 161.6kB. Max. memory is 16.1GB. [2022-02-20 18:13:42,543 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:13:42,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 189.98ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 31.4MB in the beginning and 55.2MB in the end (delta: -23.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 18:13:42,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.56ms. Allocated memory is still 71.3MB. Free memory was 55.2MB in the beginning and 53.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:13:42,545 INFO L158 Benchmark]: Boogie Preprocessor took 26.32ms. Allocated memory is still 71.3MB. Free memory was 53.6MB in the beginning and 52.6MB in the end (delta: 955.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:13:42,548 INFO L158 Benchmark]: RCFGBuilder took 182.94ms. Allocated memory is still 71.3MB. Free memory was 52.6MB in the beginning and 43.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 18:13:42,549 INFO L158 Benchmark]: TraceAbstraction took 477.76ms. Allocated memory is still 71.3MB. Free memory was 42.9MB in the beginning and 48.6MB in the end (delta: -5.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 18:13:42,552 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory was 34.5MB in the beginning and 34.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 189.98ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 31.4MB in the beginning and 55.2MB in the end (delta: -23.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.56ms. Allocated memory is still 71.3MB. Free memory was 55.2MB in the beginning and 53.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.32ms. Allocated memory is still 71.3MB. Free memory was 53.6MB in the beginning and 52.6MB in the end (delta: 955.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 182.94ms. Allocated memory is still 71.3MB. Free memory was 52.6MB in the beginning and 43.3MB in the end (delta: 9.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 477.76ms. Allocated memory is still 71.3MB. Free memory was 42.9MB in the beginning and 48.6MB in the end (delta: -5.8MB). There was no memory consumed. 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 - ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: callstack broken after backtranslation by InlinerBacktranslator: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:230) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-20 18:13:42,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: callstack broken after backtranslation by InlinerBacktranslator