./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-invariants/bin-suffix-5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a31fd051 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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/loop-invariants/bin-suffix-5.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 5914c4745abcb0dcb313c2b575f4f16975b523b456d4ed119a355a5c133e341f --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 11:16:13,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 11:16:13,343 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 11:16:13,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 11:16:13,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 11:16:13,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 11:16:13,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 11:16:13,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 11:16:13,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 11:16:13,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 11:16:13,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 11:16:13,401 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 11:16:13,401 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 11:16:13,402 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 11:16:13,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 11:16:13,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 11:16:13,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 11:16:13,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 11:16:13,405 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 11:16:13,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 11:16:13,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 11:16:13,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 11:16:13,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 11:16:13,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 11:16:13,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 11:16:13,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 11:16:13,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 11:16:13,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 11:16:13,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 11:16:13,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 11:16:13,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 11:16:13,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 11:16:13,425 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 11:16:13,426 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 11:16:13,427 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 11:16:13,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 11:16:13,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 11:16:13,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 11:16:13,428 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 11:16:13,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 11:16:13,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 11:16:13,432 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 11:16:13,459 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 11:16:13,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 11:16:13,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 11:16:13,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 11:16:13,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 11:16:13,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 11:16:13,462 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 11:16:13,462 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 11:16:13,462 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 11:16:13,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 11:16:13,463 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 11:16:13,463 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 11:16:13,463 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 11:16:13,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 11:16:13,464 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 11:16:13,464 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 11:16:13,464 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 11:16:13,464 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 11:16:13,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 11:16:13,465 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 11:16:13,465 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 11:16:13,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 11:16:13,465 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 11:16:13,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 11:16:13,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 11:16:13,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 11:16:13,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 11:16:13,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 11:16:13,466 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 11:16:13,466 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 11:16:13,467 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 11:16:13,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 11:16:13,467 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 11:16:13,467 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 11:16:13,468 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 11:16:13,468 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5914c4745abcb0dcb313c2b575f4f16975b523b456d4ed119a355a5c133e341f [2023-02-15 11:16:13,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 11:16:13,716 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 11:16:13,718 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 11:16:13,719 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 11:16:13,720 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 11:16:13,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2023-02-15 11:16:14,767 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 11:16:14,921 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 11:16:14,921 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2023-02-15 11:16:14,926 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/302a558f2/878b6dc94b1d4f5b89fff1046991607f/FLAG014e73e9b [2023-02-15 11:16:14,938 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/302a558f2/878b6dc94b1d4f5b89fff1046991607f [2023-02-15 11:16:14,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 11:16:14,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 11:16:14,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 11:16:14,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 11:16:14,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 11:16:14,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:16:14" (1/1) ... [2023-02-15 11:16:14,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@251882e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:14, skipping insertion in model container [2023-02-15 11:16:14,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:16:14" (1/1) ... [2023-02-15 11:16:14,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 11:16:14,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 11:16:15,057 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2023-02-15 11:16:15,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 11:16:15,071 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 11:16:15,080 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2023-02-15 11:16:15,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 11:16:15,092 INFO L208 MainTranslator]: Completed translation [2023-02-15 11:16:15,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15 WrapperNode [2023-02-15 11:16:15,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 11:16:15,094 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 11:16:15,094 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 11:16:15,094 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 11:16:15,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (1/1) ... [2023-02-15 11:16:15,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (1/1) ... [2023-02-15 11:16:15,116 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2023-02-15 11:16:15,116 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 11:16:15,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 11:16:15,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 11:16:15,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 11:16:15,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (1/1) ... [2023-02-15 11:16:15,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (1/1) ... [2023-02-15 11:16:15,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (1/1) ... [2023-02-15 11:16:15,124 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (1/1) ... [2023-02-15 11:16:15,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (1/1) ... [2023-02-15 11:16:15,128 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (1/1) ... [2023-02-15 11:16:15,129 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (1/1) ... [2023-02-15 11:16:15,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (1/1) ... [2023-02-15 11:16:15,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 11:16:15,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 11:16:15,131 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 11:16:15,131 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 11:16:15,132 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (1/1) ... [2023-02-15 11:16:15,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 11:16:15,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 11:16:15,162 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) [2023-02-15 11:16:15,169 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 [2023-02-15 11:16:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 11:16:15,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 11:16:15,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 11:16:15,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 11:16:15,249 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 11:16:15,250 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 11:16:15,340 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 11:16:15,345 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 11:16:15,345 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 11:16:15,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:16:15 BoogieIcfgContainer [2023-02-15 11:16:15,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 11:16:15,349 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 11:16:15,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 11:16:15,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 11:16:15,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 11:16:14" (1/3) ... [2023-02-15 11:16:15,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@597dbffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:16:15, skipping insertion in model container [2023-02-15 11:16:15,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:15" (2/3) ... [2023-02-15 11:16:15,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@597dbffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:16:15, skipping insertion in model container [2023-02-15 11:16:15,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:16:15" (3/3) ... [2023-02-15 11:16:15,354 INFO L112 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2023-02-15 11:16:15,367 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 11:16:15,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 11:16:15,402 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 11:16:15,408 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@20e8493c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 11:16:15,408 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 11:16:15,411 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:15,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 11:16:15,415 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:16:15,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 11:16:15,416 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 11:16:15,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:16:15,420 INFO L85 PathProgramCache]: Analyzing trace with hash 889783783, now seen corresponding path program 1 times [2023-02-15 11:16:15,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:16:15,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766865121] [2023-02-15 11:16:15,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:16:15,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:16:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:16:15,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:16:15,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:16:15,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766865121] [2023-02-15 11:16:15,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766865121] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:16:15,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:16:15,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 11:16:15,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938423339] [2023-02-15 11:16:15,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:16:15,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 11:16:15,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:16:15,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 11:16:15,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 11:16:15,578 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:15,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:16:15,590 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2023-02-15 11:16:15,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 11:16:15,592 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 11:16:15,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:16:15,598 INFO L225 Difference]: With dead ends: 20 [2023-02-15 11:16:15,598 INFO L226 Difference]: Without dead ends: 8 [2023-02-15 11:16:15,600 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 11:16:15,607 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 11:16:15,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 11:16:15,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-02-15 11:16:15,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-15 11:16:15,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:15,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-02-15 11:16:15,631 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2023-02-15 11:16:15,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:16:15,632 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-02-15 11:16:15,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:15,632 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-02-15 11:16:15,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 11:16:15,633 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:16:15,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:16:15,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 11:16:15,634 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 11:16:15,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:16:15,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1806847180, now seen corresponding path program 1 times [2023-02-15 11:16:15,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:16:15,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985322759] [2023-02-15 11:16:15,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:16:15,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:16:15,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:16:15,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:16:15,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 11:16:15,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985322759] [2023-02-15 11:16:15,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985322759] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:16:15,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:16:15,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 11:16:15,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792146692] [2023-02-15 11:16:15,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:16:15,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 11:16:15,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 11:16:15,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 11:16:15,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 11:16:15,877 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:15,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:16:15,914 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-02-15 11:16:15,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 11:16:15,915 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 11:16:15,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:16:15,915 INFO L225 Difference]: With dead ends: 14 [2023-02-15 11:16:15,915 INFO L226 Difference]: Without dead ends: 10 [2023-02-15 11:16:15,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:16:15,917 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 11:16:15,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 11:16:15,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-02-15 11:16:15,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2023-02-15 11:16:15,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:15,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-02-15 11:16:15,938 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2023-02-15 11:16:15,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:16:15,938 INFO L495 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2023-02-15 11:16:15,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:15,939 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-02-15 11:16:15,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 11:16:15,939 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:16:15,939 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:16:15,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 11:16:15,940 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 11:16:15,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:16:15,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1262026695, now seen corresponding path program 1 times [2023-02-15 11:16:15,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 11:16:15,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157648397] [2023-02-15 11:16:15,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:16:15,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 11:16:15,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 11:16:15,952 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-02-15 11:16:15,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-02-15 11:16:15,995 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-02-15 11:16:15,996 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-02-15 11:16:15,997 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 11:16:15,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 11:16:16,001 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-02-15 11:16:16,003 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 11:16:16,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 11:16:16 BoogieIcfgContainer [2023-02-15 11:16:16,016 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 11:16:16,017 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 11:16:16,017 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 11:16:16,017 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 11:16:16,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:16:15" (3/4) ... [2023-02-15 11:16:16,020 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-15 11:16:16,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 11:16:16,020 INFO L158 Benchmark]: Toolchain (without parser) took 1078.62ms. Allocated memory is still 132.1MB. Free memory was 93.9MB in the beginning and 64.9MB in the end (delta: 29.0MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2023-02-15 11:16:16,029 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 11:16:16,029 INFO L158 Benchmark]: CACSL2BoogieTranslator took 148.73ms. Allocated memory is still 132.1MB. Free memory was 93.9MB in the beginning and 84.1MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 11:16:16,030 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.92ms. Allocated memory is still 132.1MB. Free memory was 84.1MB in the beginning and 82.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 11:16:16,031 INFO L158 Benchmark]: Boogie Preprocessor took 13.49ms. Allocated memory is still 132.1MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 11:16:16,034 INFO L158 Benchmark]: RCFGBuilder took 215.90ms. Allocated memory is still 132.1MB. Free memory was 81.7MB in the beginning and 100.5MB in the end (delta: -18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 11:16:16,035 INFO L158 Benchmark]: TraceAbstraction took 667.36ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 64.9MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-02-15 11:16:16,036 INFO L158 Benchmark]: Witness Printer took 3.26ms. Allocated memory is still 132.1MB. Free memory is still 64.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 11:16:16,040 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 104.9MB. Free memory is still 78.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 148.73ms. Allocated memory is still 132.1MB. Free memory was 93.9MB in the beginning and 84.1MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.92ms. Allocated memory is still 132.1MB. Free memory was 84.1MB in the beginning and 82.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 13.49ms. Allocated memory is still 132.1MB. Free memory was 82.8MB in the beginning and 81.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 215.90ms. Allocated memory is still 132.1MB. Free memory was 81.7MB in the beginning and 100.5MB in the end (delta: -18.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 667.36ms. Allocated memory is still 132.1MB. Free memory was 100.0MB in the beginning and 64.9MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 3.26ms. Allocated memory is still 132.1MB. Free memory is still 64.9MB. 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 - UnprovableResult [Line: 7]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 16. Possible FailurePath: [L12] unsigned int x = 5; VAL [x=5] [L13] COND TRUE __VERIFIER_nondet_int() [L14] x += 8 VAL [x=13] [L13] COND FALSE !(__VERIFIER_nondet_int()) [L16] CALL __VERIFIER_assert((x & 5) == 5) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 18 mSDtfsCounter, 7 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-02-15 11:16:16,062 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 -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/loop-invariants/bin-suffix-5.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 5914c4745abcb0dcb313c2b575f4f16975b523b456d4ed119a355a5c133e341f --- Real Ultimate output --- This is Ultimate 0.2.2-?-a31fd05 [2023-02-15 11:16:18,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 11:16:18,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 11:16:18,050 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 11:16:18,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 11:16:18,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 11:16:18,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 11:16:18,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 11:16:18,064 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 11:16:18,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 11:16:18,069 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 11:16:18,071 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 11:16:18,071 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 11:16:18,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 11:16:18,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 11:16:18,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 11:16:18,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 11:16:18,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 11:16:18,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 11:16:18,085 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 11:16:18,086 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 11:16:18,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 11:16:18,087 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 11:16:18,088 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 11:16:18,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 11:16:18,094 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 11:16:18,094 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 11:16:18,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 11:16:18,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 11:16:18,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 11:16:18,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 11:16:18,103 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 11:16:18,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 11:16:18,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 11:16:18,105 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 11:16:18,106 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 11:16:18,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 11:16:18,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 11:16:18,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 11:16:18,107 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 11:16:18,108 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 11:16:18,109 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-02-15 11:16:18,150 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 11:16:18,150 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 11:16:18,151 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 11:16:18,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 11:16:18,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 11:16:18,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 11:16:18,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 11:16:18,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 11:16:18,153 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 11:16:18,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 11:16:18,154 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 11:16:18,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 11:16:18,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 11:16:18,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 11:16:18,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 11:16:18,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 11:16:18,155 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-15 11:16:18,156 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-15 11:16:18,156 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-15 11:16:18,156 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 11:16:18,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 11:16:18,156 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 11:16:18,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 11:16:18,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 11:16:18,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 11:16:18,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 11:16:18,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 11:16:18,158 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 11:16:18,158 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 11:16:18,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 11:16:18,158 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-15 11:16:18,158 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-15 11:16:18,159 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 11:16:18,159 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 11:16:18,159 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 11:16:18,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 11:16:18,159 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-15 11:16:18,160 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 11:16:18,160 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5914c4745abcb0dcb313c2b575f4f16975b523b456d4ed119a355a5c133e341f [2023-02-15 11:16:18,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 11:16:18,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 11:16:18,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 11:16:18,505 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 11:16:18,506 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 11:16:18,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2023-02-15 11:16:19,700 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 11:16:19,880 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 11:16:19,880 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/bin-suffix-5.c [2023-02-15 11:16:19,885 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a26b29c9d/4704b4207b3b425d88b2255cc098209c/FLAGf9e44e4b3 [2023-02-15 11:16:19,899 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a26b29c9d/4704b4207b3b425d88b2255cc098209c [2023-02-15 11:16:19,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 11:16:19,903 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 11:16:19,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 11:16:19,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 11:16:19,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 11:16:19,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:16:19" (1/1) ... [2023-02-15 11:16:19,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52d594ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:19, skipping insertion in model container [2023-02-15 11:16:19,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 11:16:19" (1/1) ... [2023-02-15 11:16:19,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 11:16:19,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 11:16:20,072 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2023-02-15 11:16:20,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 11:16:20,092 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 11:16:20,106 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-invariants/bin-suffix-5.c[359,372] [2023-02-15 11:16:20,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 11:16:20,120 INFO L208 MainTranslator]: Completed translation [2023-02-15 11:16:20,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20 WrapperNode [2023-02-15 11:16:20,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 11:16:20,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 11:16:20,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 11:16:20,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 11:16:20,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (1/1) ... [2023-02-15 11:16:20,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (1/1) ... [2023-02-15 11:16:20,146 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2023-02-15 11:16:20,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 11:16:20,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 11:16:20,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 11:16:20,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 11:16:20,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (1/1) ... [2023-02-15 11:16:20,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (1/1) ... [2023-02-15 11:16:20,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (1/1) ... [2023-02-15 11:16:20,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (1/1) ... [2023-02-15 11:16:20,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (1/1) ... [2023-02-15 11:16:20,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (1/1) ... [2023-02-15 11:16:20,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (1/1) ... [2023-02-15 11:16:20,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (1/1) ... [2023-02-15 11:16:20,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 11:16:20,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 11:16:20,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 11:16:20,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 11:16:20,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (1/1) ... [2023-02-15 11:16:20,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 11:16:20,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 11:16:20,194 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) [2023-02-15 11:16:20,201 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 [2023-02-15 11:16:20,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 11:16:20,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 11:16:20,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 11:16:20,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-15 11:16:20,267 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 11:16:20,268 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 11:16:20,342 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 11:16:20,347 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 11:16:20,347 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 11:16:20,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:16:20 BoogieIcfgContainer [2023-02-15 11:16:20,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 11:16:20,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 11:16:20,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 11:16:20,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 11:16:20,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 11:16:19" (1/3) ... [2023-02-15 11:16:20,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f71c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:16:20, skipping insertion in model container [2023-02-15 11:16:20,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 11:16:20" (2/3) ... [2023-02-15 11:16:20,354 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f71c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 11:16:20, skipping insertion in model container [2023-02-15 11:16:20,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:16:20" (3/3) ... [2023-02-15 11:16:20,361 INFO L112 eAbstractionObserver]: Analyzing ICFG bin-suffix-5.c [2023-02-15 11:16:20,374 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 11:16:20,375 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-15 11:16:20,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 11:16:20,438 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@56abda75, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 11:16:20,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-15 11:16:20,443 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:20,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 11:16:20,448 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:16:20,448 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 11:16:20,448 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 11:16:20,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:16:20,454 INFO L85 PathProgramCache]: Analyzing trace with hash 889633835, now seen corresponding path program 1 times [2023-02-15 11:16:20,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 11:16:20,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244279190] [2023-02-15 11:16:20,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:16:20,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 11:16:20,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 11:16:20,473 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 11:16:20,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-02-15 11:16:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:16:20,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 11:16:20,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 11:16:20,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:16:20,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 11:16:20,661 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 11:16:20,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244279190] [2023-02-15 11:16:20,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244279190] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 11:16:20,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 11:16:20,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 11:16:20,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342446618] [2023-02-15 11:16:20,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:16:20,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 11:16:20,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 11:16:20,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 11:16:20,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 11:16:20,721 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:20,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:16:20,770 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2023-02-15 11:16:20,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 11:16:20,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 11:16:20,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:16:20,778 INFO L225 Difference]: With dead ends: 26 [2023-02-15 11:16:20,778 INFO L226 Difference]: Without dead ends: 8 [2023-02-15 11:16:20,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 11:16:20,785 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 9 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 11:16:20,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 23 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 11:16:20,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2023-02-15 11:16:20,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2023-02-15 11:16:20,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:20,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-02-15 11:16:20,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2023-02-15 11:16:20,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:16:20,813 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-02-15 11:16:20,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:20,813 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-02-15 11:16:20,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 11:16:20,814 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 11:16:20,814 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 11:16:20,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-02-15 11:16:21,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 11:16:21,023 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-15 11:16:21,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 11:16:21,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1810510480, now seen corresponding path program 1 times [2023-02-15 11:16:21,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-15 11:16:21,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885497737] [2023-02-15 11:16:21,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 11:16:21,025 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 11:16:21,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-15 11:16:21,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-15 11:16:21,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-02-15 11:16:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 11:16:21,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 11:16:21,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 11:16:21,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 11:16:21,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 11:16:21,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 11:16:21,168 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-15 11:16:21,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885497737] [2023-02-15 11:16:21,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885497737] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-15 11:16:21,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 11:16:21,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-02-15 11:16:21,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072270726] [2023-02-15 11:16:21,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 11:16:21,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 11:16:21,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-15 11:16:21,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 11:16:21,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-02-15 11:16:21,171 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:21,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 11:16:21,185 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2023-02-15 11:16:21,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 11:16:21,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 11:16:21,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 11:16:21,186 INFO L225 Difference]: With dead ends: 8 [2023-02-15 11:16:21,186 INFO L226 Difference]: Without dead ends: 0 [2023-02-15 11:16:21,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-02-15 11:16:21,188 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 11:16:21,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 11:16:21,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-15 11:16:21,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-15 11:16:21,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:21,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-15 11:16:21,190 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2023-02-15 11:16:21,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 11:16:21,190 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-15 11:16:21,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 11:16:21,191 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-15 11:16:21,191 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-15 11:16:21,193 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-15 11:16:21,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-02-15 11:16:21,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-15 11:16:21,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-15 11:16:21,450 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-15 11:16:21,450 INFO L895 garLoopResultBuilder]: At program point L13-2(lines 13 15) the Hoare annotation is: (= (bvand |ULTIMATE.start_main_~x~0#1| (_ bv5 32)) (_ bv5 32)) [2023-02-15 11:16:21,451 INFO L899 garLoopResultBuilder]: For program point L13-3(lines 13 15) no Hoare annotation was computed. [2023-02-15 11:16:21,451 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-15 11:16:21,451 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 11 18) the Hoare annotation is: true [2023-02-15 11:16:21,451 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2023-02-15 11:16:21,451 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-15 11:16:21,451 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-15 11:16:21,451 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2023-02-15 11:16:21,452 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2023-02-15 11:16:21,452 INFO L902 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2023-02-15 11:16:21,454 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-02-15 11:16:21,455 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-15 11:16:21,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 11:16:21 BoogieIcfgContainer [2023-02-15 11:16:21,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-15 11:16:21,480 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-15 11:16:21,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-15 11:16:21,481 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-15 11:16:21,481 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 11:16:20" (3/4) ... [2023-02-15 11:16:21,483 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-15 11:16:21,489 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2023-02-15 11:16:21,489 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-15 11:16:21,490 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-15 11:16:21,490 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-15 11:16:21,542 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-15 11:16:21,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-15 11:16:21,543 INFO L158 Benchmark]: Toolchain (without parser) took 1639.55ms. Allocated memory is still 98.6MB. Free memory was 75.2MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.4MB. Max. memory is 16.1GB. [2023-02-15 11:16:21,543 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 11:16:21,543 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.09ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 64.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-15 11:16:21,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.87ms. Allocated memory is still 98.6MB. Free memory was 64.8MB in the beginning and 63.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-15 11:16:21,544 INFO L158 Benchmark]: Boogie Preprocessor took 15.75ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 62.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 11:16:21,544 INFO L158 Benchmark]: RCFGBuilder took 185.60ms. Allocated memory is still 98.6MB. Free memory was 62.1MB in the beginning and 53.5MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-15 11:16:21,544 INFO L158 Benchmark]: TraceAbstraction took 1129.94ms. Allocated memory is still 98.6MB. Free memory was 52.7MB in the beginning and 75.3MB in the end (delta: -22.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2023-02-15 11:16:21,545 INFO L158 Benchmark]: Witness Printer took 61.57ms. Allocated memory is still 98.6MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-15 11:16:21,547 INFO L339 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 73.4MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.09ms. Allocated memory is still 98.6MB. Free memory was 75.0MB in the beginning and 64.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.87ms. Allocated memory is still 98.6MB. Free memory was 64.8MB in the beginning and 63.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.75ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 62.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 185.60ms. Allocated memory is still 98.6MB. Free memory was 62.1MB in the beginning and 53.5MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1129.94ms. Allocated memory is still 98.6MB. Free memory was 52.7MB in the beginning and 75.3MB in the end (delta: -22.6MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Witness Printer took 61.57ms. Allocated memory is still 98.6MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. 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: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 19 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 7 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 46 SizeOfPredicates, 6 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ~bvand32(x, 5bv32) == 5bv32 RESULT: Ultimate proved your program to be correct! [2023-02-15 11:16:21,576 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: TRUE