./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/locks/test_locks_15-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.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/locks/test_locks_15-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 04dfa849b43716e8587b0fc4953cadbe3968c4e3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-19 22:24:44,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 22:24:44,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 22:24:44,410 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 22:24:44,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 22:24:44,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 22:24:44,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 22:24:44,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 22:24:44,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 22:24:44,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 22:24:44,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 22:24:44,419 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 22:24:44,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 22:24:44,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 22:24:44,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 22:24:44,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 22:24:44,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 22:24:44,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 22:24:44,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 22:24:44,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 22:24:44,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 22:24:44,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 22:24:44,432 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 22:24:44,433 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 22:24:44,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 22:24:44,436 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 22:24:44,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 22:24:44,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 22:24:44,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 22:24:44,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 22:24:44,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 22:24:44,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 22:24:44,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 22:24:44,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 22:24:44,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 22:24:44,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 22:24:44,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 22:24:44,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 22:24:44,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 22:24:44,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 22:24:44,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 22:24:44,446 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-19 22:24:44,499 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 22:24:44,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 22:24:44,505 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 22:24:44,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 22:24:44,505 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 22:24:44,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 22:24:44,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 22:24:44,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 22:24:44,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 22:24:44,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 22:24:44,507 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 22:24:44,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 22:24:44,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 22:24:44,507 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 22:24:44,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 22:24:44,508 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 22:24:44,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 22:24:44,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 22:24:44,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 22:24:44,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 22:24:44,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 22:24:44,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 22:24:44,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 22:24:44,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 22:24:44,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 22:24:44,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 22:24:44,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 22:24:44,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 22:24:44,513 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 22:24:44,513 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(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 -> 04dfa849b43716e8587b0fc4953cadbe3968c4e3 [2020-10-19 22:24:44,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 22:24:44,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 22:24:44,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 22:24:44,762 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 22:24:44,763 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 22:24:44,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_15-1.c [2020-10-19 22:24:44,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/802ca1a16/f4315f3c34ff4c80895904a4bff69ba9/FLAG2b4ffb2d9 [2020-10-19 22:24:45,391 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 22:24:45,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_15-1.c [2020-10-19 22:24:45,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/802ca1a16/f4315f3c34ff4c80895904a4bff69ba9/FLAG2b4ffb2d9 [2020-10-19 22:24:45,803 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/802ca1a16/f4315f3c34ff4c80895904a4bff69ba9 [2020-10-19 22:24:45,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 22:24:45,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 22:24:45,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 22:24:45,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 22:24:45,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 22:24:45,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:24:45" (1/1) ... [2020-10-19 22:24:45,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@322af429 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:45, skipping insertion in model container [2020-10-19 22:24:45,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 10:24:45" (1/1) ... [2020-10-19 22:24:45,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 22:24:45,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 22:24:46,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:24:46,221 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 22:24:46,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 22:24:46,315 INFO L208 MainTranslator]: Completed translation [2020-10-19 22:24:46,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46 WrapperNode [2020-10-19 22:24:46,316 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 22:24:46,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 22:24:46,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 22:24:46,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 22:24:46,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46" (1/1) ... [2020-10-19 22:24:46,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46" (1/1) ... [2020-10-19 22:24:46,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 22:24:46,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 22:24:46,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 22:24:46,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 22:24:46,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46" (1/1) ... [2020-10-19 22:24:46,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46" (1/1) ... [2020-10-19 22:24:46,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46" (1/1) ... [2020-10-19 22:24:46,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46" (1/1) ... [2020-10-19 22:24:46,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46" (1/1) ... [2020-10-19 22:24:46,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46" (1/1) ... [2020-10-19 22:24:46,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46" (1/1) ... [2020-10-19 22:24:46,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 22:24:46,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 22:24:46,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 22:24:46,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 22:24:46,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46" (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 [2020-10-19 22:24:46,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 22:24:46,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 22:24:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 22:24:46,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 22:24:46,857 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 22:24:46,857 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-19 22:24:46,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:46 BoogieIcfgContainer [2020-10-19 22:24:46,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 22:24:46,861 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 22:24:46,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 22:24:46,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 22:24:46,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 10:24:45" (1/3) ... [2020-10-19 22:24:46,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d10dc2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:24:46, skipping insertion in model container [2020-10-19 22:24:46,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 10:24:46" (2/3) ... [2020-10-19 22:24:46,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d10dc2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 10:24:46, skipping insertion in model container [2020-10-19 22:24:46,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:46" (3/3) ... [2020-10-19 22:24:46,868 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_15-1.c [2020-10-19 22:24:46,883 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 22:24:46,893 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-19 22:24:46,925 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-19 22:24:46,982 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 22:24:46,982 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 22:24:46,983 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 22:24:46,983 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 22:24:46,983 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 22:24:46,983 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 22:24:46,984 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 22:24:46,984 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 22:24:47,002 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-19 22:24:47,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 22:24:47,007 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:47,008 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:47,009 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:47,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:47,014 INFO L82 PathProgramCache]: Analyzing trace with hash -1188553263, now seen corresponding path program 1 times [2020-10-19 22:24:47,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:47,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869290771] [2020-10-19 22:24:47,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:47,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:24:47,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869290771] [2020-10-19 22:24:47,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:47,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:47,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973504755] [2020-10-19 22:24:47,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:47,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:47,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:47,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:47,280 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 3 states. [2020-10-19 22:24:47,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:47,374 INFO L93 Difference]: Finished difference Result 161 states and 301 transitions. [2020-10-19 22:24:47,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:47,377 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-19 22:24:47,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:47,391 INFO L225 Difference]: With dead ends: 161 [2020-10-19 22:24:47,391 INFO L226 Difference]: Without dead ends: 99 [2020-10-19 22:24:47,395 INFO L677 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 [2020-10-19 22:24:47,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-19 22:24:47,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2020-10-19 22:24:47,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-19 22:24:47,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 183 transitions. [2020-10-19 22:24:47,443 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 183 transitions. Word has length 22 [2020-10-19 22:24:47,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:47,443 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 183 transitions. [2020-10-19 22:24:47,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 183 transitions. [2020-10-19 22:24:47,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 22:24:47,445 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:47,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:47,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-19 22:24:47,446 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:47,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:47,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1188560455, now seen corresponding path program 1 times [2020-10-19 22:24:47,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:47,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553090354] [2020-10-19 22:24:47,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:47,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:47,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:24:47,534 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553090354] [2020-10-19 22:24:47,534 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:47,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:47,535 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440795675] [2020-10-19 22:24:47,537 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:47,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:47,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:47,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:47,538 INFO L87 Difference]: Start difference. First operand 97 states and 183 transitions. Second operand 3 states. [2020-10-19 22:24:47,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:47,558 INFO L93 Difference]: Finished difference Result 100 states and 186 transitions. [2020-10-19 22:24:47,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:47,559 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-19 22:24:47,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:47,561 INFO L225 Difference]: With dead ends: 100 [2020-10-19 22:24:47,561 INFO L226 Difference]: Without dead ends: 98 [2020-10-19 22:24:47,562 INFO L677 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 [2020-10-19 22:24:47,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-19 22:24:47,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2020-10-19 22:24:47,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98 states. [2020-10-19 22:24:47,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 184 transitions. [2020-10-19 22:24:47,574 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 184 transitions. Word has length 22 [2020-10-19 22:24:47,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:47,575 INFO L481 AbstractCegarLoop]: Abstraction has 98 states and 184 transitions. [2020-10-19 22:24:47,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:47,575 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 184 transitions. [2020-10-19 22:24:47,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 22:24:47,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:47,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:47,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-19 22:24:47,577 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:47,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:47,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1112269327, now seen corresponding path program 1 times [2020-10-19 22:24:47,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:47,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499023505] [2020-10-19 22:24:47,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:47,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:47,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:24:47,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499023505] [2020-10-19 22:24:47,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:47,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:47,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592697091] [2020-10-19 22:24:47,681 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:47,681 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:47,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:47,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:47,682 INFO L87 Difference]: Start difference. First operand 98 states and 184 transitions. Second operand 3 states. [2020-10-19 22:24:47,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:47,721 INFO L93 Difference]: Finished difference Result 233 states and 437 transitions. [2020-10-19 22:24:47,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:47,722 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-19 22:24:47,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:47,724 INFO L225 Difference]: With dead ends: 233 [2020-10-19 22:24:47,724 INFO L226 Difference]: Without dead ends: 137 [2020-10-19 22:24:47,725 INFO L677 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 [2020-10-19 22:24:47,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-10-19 22:24:47,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2020-10-19 22:24:47,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2020-10-19 22:24:47,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 250 transitions. [2020-10-19 22:24:47,744 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 250 transitions. Word has length 22 [2020-10-19 22:24:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:47,745 INFO L481 AbstractCegarLoop]: Abstraction has 135 states and 250 transitions. [2020-10-19 22:24:47,745 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 250 transitions. [2020-10-19 22:24:47,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 22:24:47,746 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:47,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:47,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-19 22:24:47,747 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:47,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:47,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1112262135, now seen corresponding path program 1 times [2020-10-19 22:24:47,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:47,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538993548] [2020-10-19 22:24:47,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:47,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 22:24:47,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 22:24:47,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538993548] [2020-10-19 22:24:47,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 22:24:47,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 22:24:47,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457784727] [2020-10-19 22:24:47,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-19 22:24:47,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 22:24:47,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 22:24:47,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 22:24:47,800 INFO L87 Difference]: Start difference. First operand 135 states and 250 transitions. Second operand 3 states. [2020-10-19 22:24:47,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 22:24:47,822 INFO L93 Difference]: Finished difference Result 187 states and 341 transitions. [2020-10-19 22:24:47,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 22:24:47,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-10-19 22:24:47,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-19 22:24:47,824 INFO L225 Difference]: With dead ends: 187 [2020-10-19 22:24:47,824 INFO L226 Difference]: Without dead ends: 135 [2020-10-19 22:24:47,825 INFO L677 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 [2020-10-19 22:24:47,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-19 22:24:47,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 133. [2020-10-19 22:24:47,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-19 22:24:47,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 243 transitions. [2020-10-19 22:24:47,849 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 243 transitions. Word has length 22 [2020-10-19 22:24:47,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-19 22:24:47,849 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 243 transitions. [2020-10-19 22:24:47,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-19 22:24:47,850 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 243 transitions. [2020-10-19 22:24:47,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-19 22:24:47,851 INFO L414 BasicCegarLoop]: Found error trace [2020-10-19 22:24:47,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-19 22:24:47,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-19 22:24:47,852 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-19 22:24:47,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 22:24:47,852 INFO L82 PathProgramCache]: Analyzing trace with hash -476078575, now seen corresponding path program 1 times [2020-10-19 22:24:47,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 22:24:47,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315278117] [2020-10-19 22:24:47,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 22:24:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:24:47,918 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:24:47,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 22:24:47,991 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 22:24:48,044 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 22:24:48,045 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-19 22:24:48,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-19 22:24:48,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 10:24:48 BoogieIcfgContainer [2020-10-19 22:24:48,100 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 22:24:48,100 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 22:24:48,101 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 22:24:48,101 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 22:24:48,102 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 10:24:46" (3/4) ... [2020-10-19 22:24:48,104 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-19 22:24:48,205 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 22:24:48,206 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 22:24:48,208 INFO L168 Benchmark]: Toolchain (without parser) took 2399.31 ms. Allocated memory was 42.5 MB in the beginning and 49.8 MB in the end (delta: 7.3 MB). Free memory was 23.1 MB in the beginning and 22.6 MB in the end (delta: 479.4 kB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:48,214 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 32.0 MB. Free memory was 10.9 MB in the beginning and 10.9 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. [2020-10-19 22:24:48,215 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.82 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 22.2 MB in the beginning and 22.8 MB in the end (delta: -628.8 kB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:48,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.45 ms. Allocated memory is still 43.0 MB. Free memory was 22.8 MB in the beginning and 20.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:48,219 INFO L168 Benchmark]: Boogie Preprocessor took 29.33 ms. Allocated memory is still 43.0 MB. Free memory was 20.7 MB in the beginning and 19.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:48,220 INFO L168 Benchmark]: RCFGBuilder took 468.60 ms. Allocated memory was 43.0 MB in the beginning and 45.6 MB in the end (delta: 2.6 MB). Free memory was 19.0 MB in the beginning and 11.9 MB in the end (delta: 7.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:48,222 INFO L168 Benchmark]: TraceAbstraction took 1239.11 ms. Allocated memory was 45.6 MB in the beginning and 49.8 MB in the end (delta: 4.2 MB). Free memory was 11.4 MB in the beginning and 27.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:48,224 INFO L168 Benchmark]: Witness Printer took 105.31 ms. Allocated memory is still 49.8 MB. Free memory was 27.5 MB in the beginning and 22.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 14.3 GB. [2020-10-19 22:24:48,230 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 32.0 MB. Free memory was 10.9 MB in the beginning and 10.9 MB in the end (delta: 47.5 kB). Peak memory consumption was 47.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 498.82 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 22.2 MB in the beginning and 22.8 MB in the end (delta: -628.8 kB). Peak memory consumption was 13.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 44.45 ms. Allocated memory is still 43.0 MB. Free memory was 22.8 MB in the beginning and 20.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 29.33 ms. Allocated memory is still 43.0 MB. Free memory was 20.7 MB in the beginning and 19.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 468.60 ms. Allocated memory was 43.0 MB in the beginning and 45.6 MB in the end (delta: 2.6 MB). Free memory was 19.0 MB in the beginning and 11.9 MB in the end (delta: 7.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1239.11 ms. Allocated memory was 45.6 MB in the beginning and 49.8 MB in the end (delta: 4.2 MB). Free memory was 11.4 MB in the beginning and 27.5 MB in the end (delta: -16.1 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * Witness Printer took 105.31 ms. Allocated memory is still 49.8 MB. Free memory was 27.5 MB in the beginning and 22.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L23] int p6 = __VERIFIER_nondet_int(); [L24] int lk6; [L26] int p7 = __VERIFIER_nondet_int(); [L27] int lk7; [L29] int p8 = __VERIFIER_nondet_int(); [L30] int lk8; [L32] int p9 = __VERIFIER_nondet_int(); [L33] int lk9; [L35] int p10 = __VERIFIER_nondet_int(); [L36] int lk10; [L38] int p11 = __VERIFIER_nondet_int(); [L39] int lk11; [L41] int p12 = __VERIFIER_nondet_int(); [L42] int lk12; [L44] int p13 = __VERIFIER_nondet_int(); [L45] int lk13; [L47] int p14 = __VERIFIER_nondet_int(); [L48] int lk14; [L50] int p15 = __VERIFIER_nondet_int(); [L51] int lk15; [L54] int cond; [L56] COND TRUE 1 [L57] cond = __VERIFIER_nondet_int() [L58] COND FALSE !(cond == 0) [L61] lk1 = 0 [L63] lk2 = 0 [L65] lk3 = 0 [L67] lk4 = 0 [L69] lk5 = 0 [L71] lk6 = 0 [L73] lk7 = 0 [L75] lk8 = 0 [L77] lk9 = 0 [L79] lk10 = 0 [L81] lk11 = 0 [L83] lk12 = 0 [L85] lk13 = 0 [L87] lk14 = 0 [L89] lk15 = 0 [L93] COND FALSE !(p1 != 0) [L97] COND FALSE !(p2 != 0) [L101] COND FALSE !(p3 != 0) [L105] COND TRUE p4 != 0 [L106] lk4 = 1 [L109] COND TRUE p5 != 0 [L110] lk5 = 1 [L113] COND TRUE p6 != 0 [L114] lk6 = 1 [L117] COND TRUE p7 != 0 [L118] lk7 = 1 [L121] COND TRUE p8 != 0 [L122] lk8 = 1 [L125] COND TRUE p9 != 0 [L126] lk9 = 1 [L129] COND TRUE p10 != 0 [L130] lk10 = 1 [L133] COND FALSE !(p11 != 0) [L137] COND TRUE p12 != 0 [L138] lk12 = 1 [L141] COND TRUE p13 != 0 [L142] lk13 = 1 [L145] COND TRUE p14 != 0 [L146] lk14 = 1 [L149] COND TRUE p15 != 0 [L150] lk15 = 1 [L155] COND FALSE !(p1 != 0) [L160] COND FALSE !(p2 != 0) [L3] __assert_fail("0", "test_locks_15-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 475 SDtfs, 244 SDslu, 307 SDs, 0 SdLazy, 20 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=135occurred in iteration=3, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 110 NumberOfCodeBlocks, 110 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 84 ConstructedInterpolants, 0 QuantifiedInterpolants, 4956 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...