./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-regression/mutex_lock_int.c_1.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.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/ldv-regression/mutex_lock_int.c_1.i -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(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 893a1dbd0a599f9a69d980cdd7a0c124f8071b90 ................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:58:01,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:58:01,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:58:01,455 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:58:01,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:58:01,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:58:01,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:58:01,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:58:01,474 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:58:01,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:58:01,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:58:01,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:58:01,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:58:01,484 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:58:01,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:58:01,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:58:01,488 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:58:01,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:58:01,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:58:01,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:58:01,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:58:01,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:58:01,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:58:01,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:58:01,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:58:01,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:58:01,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:58:01,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:58:01,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:58:01,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:58:01,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:58:01,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:58:01,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:58:01,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:58:01,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:58:01,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:58:01,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:58:01,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:58:01,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:58:01,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:58:01,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:58:01,523 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:58:01,558 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:58:01,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:58:01,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:58:01,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:58:01,568 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:58:01,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:58:01,568 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:58:01,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:58:01,569 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:58:01,569 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:58:01,569 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:58:01,571 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:58:01,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:58:01,571 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:58:01,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:58:01,572 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:58:01,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:58:01,573 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:58:01,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:58:01,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:58:01,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:58:01,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:58:01,574 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:58:01,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:58:01,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:58:01,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:58:01,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:58:01,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:58:01,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:58:01,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(__VERIFIER_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 -> 893a1dbd0a599f9a69d980cdd7a0c124f8071b90 [2020-07-28 17:58:01,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:58:01,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:58:01,927 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:58:01,929 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:58:01,929 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:58:01,930 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/mutex_lock_int.c_1.i [2020-07-28 17:58:01,990 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/140f5d6cd/ab6632896b584986837c4d054508d61e/FLAGc97986b6c [2020-07-28 17:58:02,408 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:58:02,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/mutex_lock_int.c_1.i [2020-07-28 17:58:02,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/140f5d6cd/ab6632896b584986837c4d054508d61e/FLAGc97986b6c [2020-07-28 17:58:02,780 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/140f5d6cd/ab6632896b584986837c4d054508d61e [2020-07-28 17:58:02,783 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:58:02,787 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:58:02,788 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:58:02,788 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:58:02,792 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:58:02,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:58:02" (1/1) ... [2020-07-28 17:58:02,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4833bc85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:02, skipping insertion in model container [2020-07-28 17:58:02,797 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:58:02" (1/1) ... [2020-07-28 17:58:02,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:58:02,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:58:02,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:58:02,991 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:58:03,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:58:03,025 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:58:03,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03 WrapperNode [2020-07-28 17:58:03,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:58:03,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:58:03,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:58:03,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:58:03,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03" (1/1) ... [2020-07-28 17:58:03,044 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03" (1/1) ... [2020-07-28 17:58:03,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:58:03,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:58:03,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:58:03,124 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:58:03,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03" (1/1) ... [2020-07-28 17:58:03,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03" (1/1) ... [2020-07-28 17:58:03,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03" (1/1) ... [2020-07-28 17:58:03,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03" (1/1) ... [2020-07-28 17:58:03,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03" (1/1) ... [2020-07-28 17:58:03,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03" (1/1) ... [2020-07-28 17:58:03,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03" (1/1) ... [2020-07-28 17:58:03,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:58:03,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:58:03,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:58:03,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:58:03,145 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:58:03,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:58:03,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:58:03,206 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:58:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:58:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:58:03,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:58:03,413 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:58:03,413 INFO L295 CfgBuilder]: Removed 12 assume(true) statements. [2020-07-28 17:58:03,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:03 BoogieIcfgContainer [2020-07-28 17:58:03,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:58:03,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:58:03,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:58:03,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:58:03,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:58:02" (1/3) ... [2020-07-28 17:58:03,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235bde7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:58:03, skipping insertion in model container [2020-07-28 17:58:03,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:58:03" (2/3) ... [2020-07-28 17:58:03,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@235bde7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:58:03, skipping insertion in model container [2020-07-28 17:58:03,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:03" (3/3) ... [2020-07-28 17:58:03,431 INFO L109 eAbstractionObserver]: Analyzing ICFG mutex_lock_int.c_1.i [2020-07-28 17:58:03,442 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:58:03,450 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-07-28 17:58:03,466 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-07-28 17:58:03,499 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:58:03,500 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:58:03,500 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:58:03,501 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:58:03,501 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:58:03,501 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:58:03,502 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:58:03,502 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:58:03,523 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-07-28 17:58:03,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-07-28 17:58:03,529 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:58:03,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-07-28 17:58:03,531 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:58:03,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:58:03,537 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-07-28 17:58:03,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:58:03,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232127084] [2020-07-28 17:58:03,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:58:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:58:03,748 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {18#true} is VALID [2020-07-28 17:58:03,751 INFO L280 TraceCheckUtils]: 1: Hoare triple {18#true} havoc main_#res;havoc main_~#m~0.base, main_~#m~0.offset;call main_~#m~0.base, main_~#m~0.offset := #Ultimate.allocOnStack(4);call write~int(0, main_~#m~0.base, main_~#m~0.offset, 4);mutex_lock_#in~a.base, mutex_lock_#in~a.offset := main_~#m~0.base, main_~#m~0.offset;havoc mutex_lock_#t~mem0, mutex_lock_~a.base, mutex_lock_~a.offset;mutex_lock_~a.base, mutex_lock_~a.offset := mutex_lock_#in~a.base, mutex_lock_#in~a.offset;call mutex_lock_#t~mem0 := read~int(mutex_lock_~a.base, mutex_lock_~a.offset, 4); {20#(= 0 |ULTIMATE.start_mutex_lock_#t~mem0|)} is VALID [2020-07-28 17:58:03,752 INFO L280 TraceCheckUtils]: 2: Hoare triple {20#(= 0 |ULTIMATE.start_mutex_lock_#t~mem0|)} assume 1 == mutex_lock_#t~mem0;havoc mutex_lock_#t~mem0; {19#false} is VALID [2020-07-28 17:58:03,752 INFO L280 TraceCheckUtils]: 3: Hoare triple {19#false} assume !false; {19#false} is VALID [2020-07-28 17:58:03,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:58:03,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232127084] [2020-07-28 17:58:03,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:58:03,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 17:58:03,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903784057] [2020-07-28 17:58:03,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-28 17:58:03,764 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:58:03,767 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 17:58:03,780 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:58:03,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 17:58:03,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:58:03,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 17:58:03,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:58:03,791 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2020-07-28 17:58:03,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:03,851 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-07-28 17:58:03,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 17:58:03,852 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-07-28 17:58:03,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:58:03,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:58:03,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2020-07-28 17:58:03,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:58:03,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 26 transitions. [2020-07-28 17:58:03,863 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 26 transitions. [2020-07-28 17:58:03,923 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:58:03,933 INFO L225 Difference]: With dead ends: 25 [2020-07-28 17:58:03,933 INFO L226 Difference]: Without dead ends: 8 [2020-07-28 17:58:03,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:58:03,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-07-28 17:58:03,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-07-28 17:58:03,965 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:58:03,966 INFO L82 GeneralOperation]: Start isEquivalent. First operand 8 states. Second operand 8 states. [2020-07-28 17:58:03,966 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2020-07-28 17:58:03,967 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2020-07-28 17:58:03,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:03,969 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-07-28 17:58:03,969 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:58:03,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:03,969 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:58:03,970 INFO L74 IsIncluded]: Start isIncluded. First operand 8 states. Second operand 8 states. [2020-07-28 17:58:03,970 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 8 states. [2020-07-28 17:58:03,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:03,971 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-07-28 17:58:03,971 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:58:03,972 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:03,972 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:58:03,972 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:58:03,973 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:58:03,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:58:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-07-28 17:58:03,976 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 4 [2020-07-28 17:58:03,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:58:03,976 INFO L479 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-07-28 17:58:03,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 17:58:03,977 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-07-28 17:58:03,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-07-28 17:58:03,977 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:58:03,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:58:03,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:58:03,978 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:58:03,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:58:03,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1810629644, now seen corresponding path program 1 times [2020-07-28 17:58:03,979 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:58:03,980 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356083298] [2020-07-28 17:58:03,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:58:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:58:04,087 INFO L280 TraceCheckUtils]: 0: Hoare triple {72#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {72#true} is VALID [2020-07-28 17:58:04,089 INFO L280 TraceCheckUtils]: 1: Hoare triple {72#true} havoc main_#res;havoc main_~#m~0.base, main_~#m~0.offset;call main_~#m~0.base, main_~#m~0.offset := #Ultimate.allocOnStack(4);call write~int(0, main_~#m~0.base, main_~#m~0.offset, 4);mutex_lock_#in~a.base, mutex_lock_#in~a.offset := main_~#m~0.base, main_~#m~0.offset;havoc mutex_lock_#t~mem0, mutex_lock_~a.base, mutex_lock_~a.offset;mutex_lock_~a.base, mutex_lock_~a.offset := mutex_lock_#in~a.base, mutex_lock_#in~a.offset;call mutex_lock_#t~mem0 := read~int(mutex_lock_~a.base, mutex_lock_~a.offset, 4); {74#(and (= ULTIMATE.start_mutex_lock_~a.base |ULTIMATE.start_main_~#m~0.base|) (= ULTIMATE.start_mutex_lock_~a.offset |ULTIMATE.start_main_~#m~0.offset|))} is VALID [2020-07-28 17:58:04,090 INFO L280 TraceCheckUtils]: 2: Hoare triple {74#(and (= ULTIMATE.start_mutex_lock_~a.base |ULTIMATE.start_main_~#m~0.base|) (= ULTIMATE.start_mutex_lock_~a.offset |ULTIMATE.start_main_~#m~0.offset|))} assume !(1 == mutex_lock_#t~mem0);havoc mutex_lock_#t~mem0; {74#(and (= ULTIMATE.start_mutex_lock_~a.base |ULTIMATE.start_main_~#m~0.base|) (= ULTIMATE.start_mutex_lock_~a.offset |ULTIMATE.start_main_~#m~0.offset|))} is VALID [2020-07-28 17:58:04,092 INFO L280 TraceCheckUtils]: 3: Hoare triple {74#(and (= ULTIMATE.start_mutex_lock_~a.base |ULTIMATE.start_main_~#m~0.base|) (= ULTIMATE.start_mutex_lock_~a.offset |ULTIMATE.start_main_~#m~0.offset|))} call write~int(1, mutex_lock_~a.base, mutex_lock_~a.offset, 4); {75#(= 1 (select (select |#memory_int| |ULTIMATE.start_main_~#m~0.base|) |ULTIMATE.start_main_~#m~0.offset|))} is VALID [2020-07-28 17:58:04,094 INFO L280 TraceCheckUtils]: 4: Hoare triple {75#(= 1 (select (select |#memory_int| |ULTIMATE.start_main_~#m~0.base|) |ULTIMATE.start_main_~#m~0.offset|))} mutex_unlock_#in~b.base, mutex_unlock_#in~b.offset := main_~#m~0.base, main_~#m~0.offset;havoc mutex_unlock_#t~mem1, mutex_unlock_~b.base, mutex_unlock_~b.offset;mutex_unlock_~b.base, mutex_unlock_~b.offset := mutex_unlock_#in~b.base, mutex_unlock_#in~b.offset;call mutex_unlock_#t~mem1 := read~int(mutex_unlock_~b.base, mutex_unlock_~b.offset, 4); {76#(= 1 |ULTIMATE.start_mutex_unlock_#t~mem1|)} is VALID [2020-07-28 17:58:04,095 INFO L280 TraceCheckUtils]: 5: Hoare triple {76#(= 1 |ULTIMATE.start_mutex_unlock_#t~mem1|)} assume 1 != mutex_unlock_#t~mem1;havoc mutex_unlock_#t~mem1; {73#false} is VALID [2020-07-28 17:58:04,095 INFO L280 TraceCheckUtils]: 6: Hoare triple {73#false} assume !false; {73#false} is VALID [2020-07-28 17:58:04,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:58:04,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356083298] [2020-07-28 17:58:04,097 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:58:04,097 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-28 17:58:04,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042214525] [2020-07-28 17:58:04,100 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-07-28 17:58:04,100 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:58:04,100 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 17:58:04,114 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:58:04,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 17:58:04,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:58:04,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 17:58:04,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-28 17:58:04,116 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 5 states. [2020-07-28 17:58:04,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:04,187 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-07-28 17:58:04,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:58:04,187 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-07-28 17:58:04,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:58:04,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 17:58:04,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-07-28 17:58:04,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 17:58:04,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2020-07-28 17:58:04,190 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 7 transitions. [2020-07-28 17:58:04,202 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:58:04,202 INFO L225 Difference]: With dead ends: 8 [2020-07-28 17:58:04,203 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:58:04,204 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-28 17:58:04,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:58:04,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:58:04,205 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:58:04,205 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:04,205 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:04,205 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:04,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:04,206 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:58:04,206 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:58:04,206 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:04,206 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:58:04,206 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:04,207 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:58:04,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:58:04,207 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:58:04,208 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:58:04,208 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:04,208 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:58:04,209 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:58:04,209 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:58:04,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:58:04,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:58:04,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-07-28 17:58:04,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:58:04,210 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:58:04,210 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 17:58:04,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:58:04,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:58:04,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:58:04,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:58:04,219 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:58:04,219 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-07-28 17:58:04,219 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:58:04,220 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:58:04,220 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:58:04,220 INFO L268 CegarLoopResult]: For program point L28(lines 28 40) no Hoare annotation was computed. [2020-07-28 17:58:04,220 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2020-07-28 17:58:04,220 INFO L268 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-07-28 17:58:04,221 INFO L268 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-07-28 17:58:04,221 INFO L268 CegarLoopResult]: For program point L22(lines 22 26) no Hoare annotation was computed. [2020-07-28 17:58:04,221 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-07-28 17:58:04,221 INFO L268 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-07-28 17:58:04,221 INFO L268 CegarLoopResult]: For program point L16(lines 16 20) no Hoare annotation was computed. [2020-07-28 17:58:04,222 INFO L268 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2020-07-28 17:58:04,222 INFO L268 CegarLoopResult]: For program point L14-1(line 14) no Hoare annotation was computed. [2020-07-28 17:58:04,226 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:58:04,227 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:58:04,227 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-28 17:58:04,227 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2020-07-28 17:58:04,227 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-28 17:58:04,228 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-28 17:58:04,228 WARN L170 areAnnotationChecker]: L18-1 has no Hoare annotation [2020-07-28 17:58:04,228 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-28 17:58:04,228 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:58:04,228 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:58:04,229 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:58:04,229 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:58:04,229 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-28 17:58:04,229 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 17:58:04,229 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-28 17:58:04,230 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:58:04,230 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:58:04,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:58:04 BoogieIcfgContainer [2020-07-28 17:58:04,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:58:04,233 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:58:04,234 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:58:04,234 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:58:04,235 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:58:03" (3/4) ... [2020-07-28 17:58:04,238 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:58:04,251 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-07-28 17:58:04,252 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 17:58:04,252 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-07-28 17:58:04,308 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:58:04,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:58:04,311 INFO L168 Benchmark]: Toolchain (without parser) took 1525.82 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 957.6 MB in the beginning and 1.0 GB in the end (delta: -77.8 MB). Peak memory consumption was 48.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:04,312 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:58:04,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.11 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 946.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:04,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:04,314 INFO L168 Benchmark]: Boogie Preprocessor took 19.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:58:04,315 INFO L168 Benchmark]: RCFGBuilder took 273.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:04,315 INFO L168 Benchmark]: TraceAbstraction took 814.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.2 MB). Peak memory consumption was 62.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:58:04,316 INFO L168 Benchmark]: Witness Printer took 74.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:58:04,319 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 238.11 ms. Allocated memory is still 1.0 GB. Free memory was 957.6 MB in the beginning and 946.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 96.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 946.8 MB in the beginning and 1.1 GB in the end (delta: -175.4 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.99 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 273.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 814.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 62.2 MB). Peak memory consumption was 62.2 MB. Max. memory is 11.5 GB. * Witness Printer took 74.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 14]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 3 SDslu, 16 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 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 proved your program to be correct! Received shutdown request...