./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/locks/test_locks_14-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/locks/test_locks_14-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 ................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/locks/test_locks_14-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:16:27,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:16:27,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:16:27,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:16:27,250 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:16:27,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:16:27,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:16:27,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:16:27,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:16:27,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:16:27,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:16:27,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:16:27,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:16:27,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:16:27,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:16:27,282 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:16:27,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:16:27,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:16:27,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:16:27,287 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:16:27,288 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:16:27,289 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:16:27,291 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:16:27,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:16:27,294 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:16:27,294 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:16:27,294 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:16:27,295 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:16:27,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:16:27,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:16:27,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:16:27,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:16:27,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:16:27,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:16:27,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:16:27,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:16:27,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:16:27,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:16:27,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:16:27,303 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:16:27,304 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:16:27,305 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2020-10-20 06:16:27,327 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:16:27,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:16:27,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:16:27,329 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:16:27,329 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:16:27,329 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:16:27,330 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:16:27,330 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:16:27,330 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:16:27,330 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:16:27,331 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:16:27,331 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:16:27,331 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:16:27,331 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:16:27,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:16:27,332 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:16:27,332 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:16:27,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:16:27,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:16:27,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:16:27,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:16:27,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:16:27,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:16:27,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:16:27,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:16:27,334 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:16:27,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:16:27,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:16:27,335 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 [2020-10-20 06:16:27,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:16:27,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:16:27,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:16:27,575 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:16:27,576 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:16:27,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-2.c [2020-10-20 06:16:27,642 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90ab53e02/00137c5c9d324d068b269100ebf27670/FLAG5393fc9cf [2020-10-20 06:16:28,132 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:16:28,133 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c [2020-10-20 06:16:28,150 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90ab53e02/00137c5c9d324d068b269100ebf27670/FLAG5393fc9cf [2020-10-20 06:16:28,503 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/90ab53e02/00137c5c9d324d068b269100ebf27670 [2020-10-20 06:16:28,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:16:28,519 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:16:28,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:16:28,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:16:28,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:16:28,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:16:28" (1/1) ... [2020-10-20 06:16:28,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119d70f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:28, skipping insertion in model container [2020-10-20 06:16:28,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:16:28" (1/1) ... [2020-10-20 06:16:28,542 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:16:28,585 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:16:28,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:16:28,953 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:16:28,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:16:29,013 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:16:29,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:29 WrapperNode [2020-10-20 06:16:29,014 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:16:29,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:16:29,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:16:29,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:16:29,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:29" (1/1) ... [2020-10-20 06:16:29,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:29" (1/1) ... [2020-10-20 06:16:29,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:29" (1/1) ... [2020-10-20 06:16:29,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:29" (1/1) ... [2020-10-20 06:16:29,060 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:29" (1/1) ... [2020-10-20 06:16:29,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:29" (1/1) ... [2020-10-20 06:16:29,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:29" (1/1) ... [2020-10-20 06:16:29,075 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:16:29,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:16:29,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:16:29,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:16:29,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:29" (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 [2020-10-20 06:16:29,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:16:29,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:16:29,145 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 06:16:29,145 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:16:29,145 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:16:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 06:16:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 06:16:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:16:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:16:29,146 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:16:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:16:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 06:16:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:16:29,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 06:16:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 06:16:29,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:16:29,555 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:16:29,555 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-20 06:16:29,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:29 BoogieIcfgContainer [2020-10-20 06:16:29,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:16:29,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:16:29,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:16:29,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:16:29,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:16:28" (1/3) ... [2020-10-20 06:16:29,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72906275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:16:29, skipping insertion in model container [2020-10-20 06:16:29,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:29" (2/3) ... [2020-10-20 06:16:29,566 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72906275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:16:29, skipping insertion in model container [2020-10-20 06:16:29,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:29" (3/3) ... [2020-10-20 06:16:29,569 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2020-10-20 06:16:29,583 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:16:29,592 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-20 06:16:29,627 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-20 06:16:29,667 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:16:29,667 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:16:29,667 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:16:29,668 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:16:29,668 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:16:29,669 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:16:29,669 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:16:29,669 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:16:29,686 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2020-10-20 06:16:29,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 06:16:29,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:29,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:29,698 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 06:16:29,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:29,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1491239536, now seen corresponding path program 1 times [2020-10-20 06:16:29,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:29,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027417936] [2020-10-20 06:16:29,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:29,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:29,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:29,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:29,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027417936] [2020-10-20 06:16:29,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:16:29,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 06:16:29,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514700891] [2020-10-20 06:16:29,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:16:29,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:30,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:16:30,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:16:30,010 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2020-10-20 06:16:30,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:30,071 INFO L93 Difference]: Finished difference Result 58 states and 99 transitions. [2020-10-20 06:16:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:16:30,073 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-20 06:16:30,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:30,084 INFO L225 Difference]: With dead ends: 58 [2020-10-20 06:16:30,085 INFO L226 Difference]: Without dead ends: 53 [2020-10-20 06:16:30,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:16:30,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-20 06:16:30,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-20 06:16:30,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-20 06:16:30,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 94 transitions. [2020-10-20 06:16:30,138 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 94 transitions. Word has length 9 [2020-10-20 06:16:30,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:30,139 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 94 transitions. [2020-10-20 06:16:30,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:16:30,139 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 94 transitions. [2020-10-20 06:16:30,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:16:30,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:30,141 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, 1, 1, 1, 1] [2020-10-20 06:16:30,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:16:30,141 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 06:16:30,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:30,142 INFO L82 PathProgramCache]: Analyzing trace with hash -590778745, now seen corresponding path program 1 times [2020-10-20 06:16:30,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:30,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325448372] [2020-10-20 06:16:30,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:30,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:30,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:30,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:30,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325448372] [2020-10-20 06:16:30,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:16:30,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:16:30,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507433004] [2020-10-20 06:16:30,283 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:16:30,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:30,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:16:30,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:16:30,284 INFO L87 Difference]: Start difference. First operand 53 states and 94 transitions. Second operand 4 states. [2020-10-20 06:16:30,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:30,540 INFO L93 Difference]: Finished difference Result 97 states and 177 transitions. [2020-10-20 06:16:30,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:16:30,541 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-20 06:16:30,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:30,544 INFO L225 Difference]: With dead ends: 97 [2020-10-20 06:16:30,544 INFO L226 Difference]: Without dead ends: 97 [2020-10-20 06:16:30,545 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:16:30,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-20 06:16:30,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2020-10-20 06:16:30,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-20 06:16:30,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 176 transitions. [2020-10-20 06:16:30,561 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 176 transitions. Word has length 26 [2020-10-20 06:16:30,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:30,562 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 176 transitions. [2020-10-20 06:16:30,562 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:16:30,562 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 176 transitions. [2020-10-20 06:16:30,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:16:30,564 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:30,564 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, 1, 1, 1, 1] [2020-10-20 06:16:30,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:16:30,565 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 06:16:30,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:30,565 INFO L82 PathProgramCache]: Analyzing trace with hash -591001697, now seen corresponding path program 1 times [2020-10-20 06:16:30,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:30,566 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033248937] [2020-10-20 06:16:30,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:30,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:30,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-20 06:16:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:30,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:30,676 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033248937] [2020-10-20 06:16:30,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:16:30,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-20 06:16:30,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088800107] [2020-10-20 06:16:30,677 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:16:30,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:16:30,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:16:30,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:16:30,679 INFO L87 Difference]: Start difference. First operand 96 states and 176 transitions. Second operand 4 states. [2020-10-20 06:16:30,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:30,888 INFO L93 Difference]: Finished difference Result 97 states and 177 transitions. [2020-10-20 06:16:30,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 06:16:30,888 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 26 [2020-10-20 06:16:30,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:30,890 INFO L225 Difference]: With dead ends: 97 [2020-10-20 06:16:30,890 INFO L226 Difference]: Without dead ends: 97 [2020-10-20 06:16:30,891 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:16:30,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-20 06:16:30,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-20 06:16:30,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-20 06:16:30,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 177 transitions. [2020-10-20 06:16:30,901 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 177 transitions. Word has length 26 [2020-10-20 06:16:30,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:30,901 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 177 transitions. [2020-10-20 06:16:30,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:16:30,902 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 177 transitions. [2020-10-20 06:16:30,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:16:30,903 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:30,903 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, 1, 1, 1, 1] [2020-10-20 06:16:30,903 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:16:30,904 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 06:16:30,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:30,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1710043845, now seen corresponding path program 1 times [2020-10-20 06:16:30,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:16:30,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405547335] [2020-10-20 06:16:30,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:16:30,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:16:30,937 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:16:30,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:16:30,968 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:16:31,035 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 06:16:31,036 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:16:31,037 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:16:31,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:16:31 BoogieIcfgContainer [2020-10-20 06:16:31,115 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:16:31,116 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:16:31,116 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:16:31,116 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:16:31,117 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:29" (3/4) ... [2020-10-20 06:16:31,120 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:16:31,121 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:16:31,123 INFO L168 Benchmark]: Toolchain (without parser) took 2612.67 ms. Allocated memory was 34.1 MB in the beginning and 55.1 MB in the end (delta: 21.0 MB). Free memory was 10.7 MB in the beginning and 35.4 MB in the end (delta: -24.6 MB). There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:16:31,125 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 33.0 MB. Free memory was 17.8 MB in the beginning and 17.8 MB in the end (delta: 54.6 kB). Peak memory consumption was 54.6 kB. Max. memory is 14.3 GB. [2020-10-20 06:16:31,126 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.36 ms. Allocated memory was 34.1 MB in the beginning and 43.0 MB in the end (delta: 8.9 MB). Free memory was 9.9 MB in the beginning and 20.7 MB in the end (delta: -10.8 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:31,126 INFO L168 Benchmark]: Boogie Preprocessor took 59.82 ms. Allocated memory is still 43.0 MB. Free memory was 20.7 MB in the beginning and 18.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:31,128 INFO L168 Benchmark]: RCFGBuilder took 482.55 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 18.4 MB in the beginning and 19.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:31,129 INFO L168 Benchmark]: TraceAbstraction took 1555.62 ms. Allocated memory was 45.1 MB in the beginning and 55.1 MB in the end (delta: 10.0 MB). Free memory was 19.0 MB in the beginning and 35.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:31,129 INFO L168 Benchmark]: Witness Printer took 5.36 ms. Allocated memory is still 55.1 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:16:31,136 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 33.0 MB. Free memory was 17.8 MB in the beginning and 17.8 MB in the end (delta: 54.6 kB). Peak memory consumption was 54.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 493.36 ms. Allocated memory was 34.1 MB in the beginning and 43.0 MB in the end (delta: 8.9 MB). Free memory was 9.9 MB in the beginning and 20.7 MB in the end (delta: -10.8 MB). Peak memory consumption was 9.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 59.82 ms. Allocated memory is still 43.0 MB. Free memory was 20.7 MB in the beginning and 18.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 482.55 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 18.4 MB in the beginning and 19.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1555.62 ms. Allocated memory was 45.1 MB in the beginning and 55.1 MB in the end (delta: 10.0 MB). Free memory was 19.0 MB in the beginning and 35.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 14.3 GB. * Witness Printer took 5.36 ms. Allocated memory is still 55.1 MB. Free memory is still 35.4 MB. There was no memory consumed. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible 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; [L51] int cond; VAL [p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L88] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L92] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L96] COND TRUE p3 != 0 [L97] lk3 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L124] COND FALSE !(p10 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L128] COND TRUE p11 != 0 [L129] lk11 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L146] COND FALSE !(p1 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L151] COND FALSE !(p2 != 0) VAL [cond=1, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=6, p12=-4, p13=1, p14=1, p2=0, p3=-2, p4=-5, p5=-6, p6=-1, p7=1, p8=-3, p9=1] [L219] CALL reach_error() [L3] __assert_fail("0", "test_locks_14-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 62 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 404 SDslu, 17 SDs, 0 SdLazy, 183 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 4854 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:16:33,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:16:33,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:16:33,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:16:33,481 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:16:33,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:16:33,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:16:33,505 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:16:33,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:16:33,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:16:33,512 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:16:33,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:16:33,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:16:33,518 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:16:33,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:16:33,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:16:33,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:16:33,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:16:33,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:16:33,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:16:33,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:16:33,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:16:33,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:16:33,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:16:33,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:16:33,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:16:33,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:16:33,545 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:16:33,545 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:16:33,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:16:33,547 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:16:33,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:16:33,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:16:33,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:16:33,550 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:16:33,550 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:16:33,551 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:16:33,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:16:33,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:16:33,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:16:33,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:16:33,554 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2020-10-20 06:16:33,576 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:16:33,576 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:16:33,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:16:33,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:16:33,578 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:16:33,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:16:33,578 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 06:16:33,579 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:16:33,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:16:33,579 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 06:16:33,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:16:33,580 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-10-20 06:16:33,580 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-10-20 06:16:33,580 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-10-20 06:16:33,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:16:33,581 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-10-20 06:16:33,581 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 06:16:33,581 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 06:16:33,581 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 06:16:33,582 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:16:33,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:16:33,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:16:33,582 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:16:33,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:16:33,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:16:33,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:16:33,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:16:33,584 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 06:16:33,584 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 06:16:33,584 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:16:33,584 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 06:16:33,585 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 7dd19b8066311da8c1eb1c6a0e6567bb02c0b787 [2020-10-20 06:16:33,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:16:33,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:16:33,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:16:33,818 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:16:33,820 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:16:33,821 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/locks/test_locks_14-2.c [2020-10-20 06:16:33,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e19ccec/be72d22065614052b369e021cfe7db20/FLAG1c7ad2723 [2020-10-20 06:16:34,303 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:16:34,304 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/locks/test_locks_14-2.c [2020-10-20 06:16:34,313 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e19ccec/be72d22065614052b369e021cfe7db20/FLAG1c7ad2723 [2020-10-20 06:16:34,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e19ccec/be72d22065614052b369e021cfe7db20 [2020-10-20 06:16:34,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:16:34,723 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-20 06:16:34,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:16:34,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:16:34,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:16:34,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:16:34" (1/1) ... [2020-10-20 06:16:34,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@292bbfb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:34, skipping insertion in model container [2020-10-20 06:16:34,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:16:34" (1/1) ... [2020-10-20 06:16:34,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:16:34,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:16:35,079 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:16:35,097 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:16:35,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:16:35,153 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:16:35,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:35 WrapperNode [2020-10-20 06:16:35,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:16:35,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:16:35,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:16:35,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:16:35,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:35" (1/1) ... [2020-10-20 06:16:35,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:35" (1/1) ... [2020-10-20 06:16:35,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:35" (1/1) ... [2020-10-20 06:16:35,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:35" (1/1) ... [2020-10-20 06:16:35,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:35" (1/1) ... [2020-10-20 06:16:35,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:35" (1/1) ... [2020-10-20 06:16:35,245 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:35" (1/1) ... [2020-10-20 06:16:35,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:16:35,254 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:16:35,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:16:35,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:16:35,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:35" (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 [2020-10-20 06:16:35,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-20 06:16:35,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:16:35,346 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-20 06:16:35,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-20 06:16:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-20 06:16:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-20 06:16:35,347 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-20 06:16:35,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 06:16:35,347 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-20 06:16:35,347 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-20 06:16:35,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-20 06:16:35,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 06:16:35,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:16:35,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2020-10-20 06:16:35,348 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2020-10-20 06:16:35,349 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 06:16:35,830 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:16:35,831 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-20 06:16:35,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:35 BoogieIcfgContainer [2020-10-20 06:16:35,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:16:35,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:16:35,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:16:35,838 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:16:35,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:16:34" (1/3) ... [2020-10-20 06:16:35,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d01166e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:16:35, skipping insertion in model container [2020-10-20 06:16:35,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:35" (2/3) ... [2020-10-20 06:16:35,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d01166e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:16:35, skipping insertion in model container [2020-10-20 06:16:35,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:35" (3/3) ... [2020-10-20 06:16:35,843 INFO L111 eAbstractionObserver]: Analyzing ICFG test_locks_14-2.c [2020-10-20 06:16:35,854 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:16:35,862 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-20 06:16:35,877 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-20 06:16:35,896 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:16:35,896 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-20 06:16:35,896 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:16:35,896 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:16:35,897 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:16:35,897 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:16:35,897 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:16:35,897 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:16:35,919 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2020-10-20 06:16:35,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 06:16:35,929 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:35,930 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:16:35,930 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 06:16:35,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:35,936 INFO L82 PathProgramCache]: Analyzing trace with hash -1491239536, now seen corresponding path program 1 times [2020-10-20 06:16:35,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:16:35,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817074375] [2020-10-20 06:16:35,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-20 06:16:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:36,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 06:16:36,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:16:36,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:36,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:16:36,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:36,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817074375] [2020-10-20 06:16:36,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:16:36,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 06:16:36,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557527979] [2020-10-20 06:16:36,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 06:16:36,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:16:36,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 06:16:36,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 06:16:36,133 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 2 states. [2020-10-20 06:16:36,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:36,152 INFO L93 Difference]: Finished difference Result 58 states and 99 transitions. [2020-10-20 06:16:36,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 06:16:36,154 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-20 06:16:36,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:36,165 INFO L225 Difference]: With dead ends: 58 [2020-10-20 06:16:36,165 INFO L226 Difference]: Without dead ends: 53 [2020-10-20 06:16:36,167 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 06:16:36,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-20 06:16:36,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-20 06:16:36,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-20 06:16:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 94 transitions. [2020-10-20 06:16:36,210 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 94 transitions. Word has length 9 [2020-10-20 06:16:36,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:36,211 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 94 transitions. [2020-10-20 06:16:36,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 06:16:36,211 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 94 transitions. [2020-10-20 06:16:36,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:16:36,212 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:36,213 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, 1, 1, 1, 1] [2020-10-20 06:16:36,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 06:16:36,426 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 06:16:36,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:36,427 INFO L82 PathProgramCache]: Analyzing trace with hash -590778745, now seen corresponding path program 1 times [2020-10-20 06:16:36,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:16:36,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1844136573] [2020-10-20 06:16:36,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-20 06:16:36,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:36,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:16:36,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:16:36,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:36,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:16:36,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:36,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1844136573] [2020-10-20 06:16:36,585 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:16:36,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-20 06:16:36,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482299623] [2020-10-20 06:16:36,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:16:36,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:16:36,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:16:36,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:16:36,588 INFO L87 Difference]: Start difference. First operand 53 states and 94 transitions. Second operand 3 states. [2020-10-20 06:16:36,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:36,624 INFO L93 Difference]: Finished difference Result 97 states and 177 transitions. [2020-10-20 06:16:36,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:16:36,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-20 06:16:36,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:36,629 INFO L225 Difference]: With dead ends: 97 [2020-10-20 06:16:36,629 INFO L226 Difference]: Without dead ends: 97 [2020-10-20 06:16:36,630 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:16:36,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-20 06:16:36,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2020-10-20 06:16:36,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-10-20 06:16:36,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 176 transitions. [2020-10-20 06:16:36,649 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 176 transitions. Word has length 26 [2020-10-20 06:16:36,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:36,649 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 176 transitions. [2020-10-20 06:16:36,649 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:16:36,649 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 176 transitions. [2020-10-20 06:16:36,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:16:36,651 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:36,651 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, 1, 1, 1, 1] [2020-10-20 06:16:36,863 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 06:16:36,865 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 06:16:36,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:36,866 INFO L82 PathProgramCache]: Analyzing trace with hash -591001697, now seen corresponding path program 1 times [2020-10-20 06:16:36,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:16:36,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520661639] [2020-10-20 06:16:36,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-20 06:16:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:16:36,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-20 06:16:36,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:16:36,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:36,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 06:16:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:16:36,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520661639] [2020-10-20 06:16:36,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:16:36,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-10-20 06:16:36,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795177920] [2020-10-20 06:16:36,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:16:36,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 06:16:36,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:16:36,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:16:36,998 INFO L87 Difference]: Start difference. First operand 96 states and 176 transitions. Second operand 3 states. [2020-10-20 06:16:37,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:16:37,018 INFO L93 Difference]: Finished difference Result 97 states and 177 transitions. [2020-10-20 06:16:37,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:16:37,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-10-20 06:16:37,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:16:37,021 INFO L225 Difference]: With dead ends: 97 [2020-10-20 06:16:37,021 INFO L226 Difference]: Without dead ends: 97 [2020-10-20 06:16:37,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:16:37,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-10-20 06:16:37,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-10-20 06:16:37,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-10-20 06:16:37,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 177 transitions. [2020-10-20 06:16:37,035 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 177 transitions. Word has length 26 [2020-10-20 06:16:37,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:16:37,036 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 177 transitions. [2020-10-20 06:16:37,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:16:37,036 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 177 transitions. [2020-10-20 06:16:37,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-20 06:16:37,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:16:37,037 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, 1, 1, 1, 1] [2020-10-20 06:16:37,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 06:16:37,244 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, mainErr0ENSURES_VIOLATIONMEMORY_LEAK]=== [2020-10-20 06:16:37,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:16:37,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1710043845, now seen corresponding path program 1 times [2020-10-20 06:16:37,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 06:16:37,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [152657902] [2020-10-20 06:16:37,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-20 06:16:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:16:37,340 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:16:37,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 06:16:37,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 06:16:37,452 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-10-20 06:16:37,452 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 06:16:37,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 06:16:37,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:16:37 BoogieIcfgContainer [2020-10-20 06:16:37,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:16:37,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:16:37,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:16:37,784 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:16:37,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:35" (3/4) ... [2020-10-20 06:16:37,791 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 06:16:37,792 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:16:37,795 INFO L168 Benchmark]: Toolchain (without parser) took 3075.97 ms. Allocated memory was 34.1 MB in the beginning and 50.9 MB in the end (delta: 16.8 MB). Free memory was 10.7 MB in the beginning and 17.1 MB in the end (delta: -6.4 MB). Peak memory consumption was 10.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:37,796 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 33.6 MB. Free memory was 18.3 MB in the beginning and 18.3 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 06:16:37,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 430.30 ms. Allocated memory was 34.1 MB in the beginning and 44.0 MB in the end (delta: 10.0 MB). Free memory was 9.8 MB in the beginning and 20.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:37,800 INFO L168 Benchmark]: Boogie Preprocessor took 99.16 ms. Allocated memory is still 44.0 MB. Free memory was 20.8 MB in the beginning and 18.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:37,804 INFO L168 Benchmark]: RCFGBuilder took 579.09 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 18.5 MB in the beginning and 17.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:37,806 INFO L168 Benchmark]: TraceAbstraction took 1948.86 ms. Allocated memory was 45.6 MB in the beginning and 50.9 MB in the end (delta: 5.2 MB). Free memory was 16.8 MB in the beginning and 17.5 MB in the end (delta: -628.3 kB). Peak memory consumption was 4.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:16:37,809 INFO L168 Benchmark]: Witness Printer took 7.79 ms. Allocated memory is still 50.9 MB. Free memory was 17.5 MB in the beginning and 17.1 MB in the end (delta: 383.9 kB). Peak memory consumption was 383.9 kB. Max. memory is 14.3 GB. [2020-10-20 06:16:37,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 33.6 MB. Free memory was 18.3 MB in the beginning and 18.3 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 430.30 ms. Allocated memory was 34.1 MB in the beginning and 44.0 MB in the end (delta: 10.0 MB). Free memory was 9.8 MB in the beginning and 20.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 9.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 99.16 ms. Allocated memory is still 44.0 MB. Free memory was 20.8 MB in the beginning and 18.5 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 579.09 ms. Allocated memory was 44.0 MB in the beginning and 45.6 MB in the end (delta: 1.6 MB). Free memory was 18.5 MB in the beginning and 17.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 1948.86 ms. Allocated memory was 45.6 MB in the beginning and 50.9 MB in the end (delta: 5.2 MB). Free memory was 16.8 MB in the beginning and 17.5 MB in the end (delta: -628.3 kB). Peak memory consumption was 4.6 MB. Max. memory is 14.3 GB. * Witness Printer took 7.79 ms. Allocated memory is still 50.9 MB. Free memory was 17.5 MB in the beginning and 17.1 MB in the end (delta: 383.9 kB). Peak memory consumption was 383.9 kB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 3. Possible 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; [L51] int cond; VAL [p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L53] COND TRUE 1 [L54] cond = __VERIFIER_nondet_int() [L55] COND FALSE !(cond == 0) [L58] lk1 = 0 [L60] lk2 = 0 [L62] lk3 = 0 [L64] lk4 = 0 [L66] lk5 = 0 [L68] lk6 = 0 [L70] lk7 = 0 [L72] lk8 = 0 [L74] lk9 = 0 [L76] lk10 = 0 [L78] lk11 = 0 [L80] lk12 = 0 [L82] lk13 = 0 [L84] lk14 = 0 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L88] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L92] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=0, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L96] COND TRUE p3 != 0 [L97] lk3 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=0, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L100] COND TRUE p4 != 0 [L101] lk4 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=0, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L104] COND TRUE p5 != 0 [L105] lk5 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=0, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L108] COND TRUE p6 != 0 [L109] lk6 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=0, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L112] COND TRUE p7 != 0 [L113] lk7 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=0, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L116] COND TRUE p8 != 0 [L117] lk8 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=0, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L120] COND TRUE p9 != 0 [L121] lk9 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L124] COND FALSE !(p10 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=0, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L128] COND TRUE p11 != 0 [L129] lk11 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=0, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L132] COND TRUE p12 != 0 [L133] lk12 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=0, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L136] COND TRUE p13 != 0 [L137] lk13 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=0, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L140] COND TRUE p14 != 0 [L141] lk14 = 1 VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L146] COND FALSE !(p1 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L151] COND FALSE !(p2 != 0) VAL [cond=2147483648, lk1=0, lk10=0, lk11=1, lk12=1, lk13=1, lk14=1, lk2=0, lk3=1, lk4=1, lk5=1, lk6=1, lk7=1, lk8=1, lk9=1, p1=0, p10=0, p11=2147483648, p12=2147483648, p13=2147483648, p14=2147483648, p2=0, p3=2147483712, p4=2147483648, p5=2147483648, p6=2147483648, p7=2147483648, p8=2147483648, p9=2147483648] [L219] CALL reach_error() [L3] __assert_fail("0", "test_locks_14-2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 62 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 339 SDtfs, 83 SDslu, 176 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=97occurred 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, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 6228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 282 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...