./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-races/race-1_1-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-races/race-1_1-join.i -s /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3cd35ce33d4b035fe378e7f17ce504e953f9db6a ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 20:26:27,239 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 20:26:27,241 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 20:26:27,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 20:26:27,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 20:26:27,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 20:26:27,254 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 20:26:27,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 20:26:27,257 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 20:26:27,258 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 20:26:27,259 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 20:26:27,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 20:26:27,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 20:26:27,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 20:26:27,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 20:26:27,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 20:26:27,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 20:26:27,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 20:26:27,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 20:26:27,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 20:26:27,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 20:26:27,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 20:26:27,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 20:26:27,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 20:26:27,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 20:26:27,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 20:26:27,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 20:26:27,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 20:26:27,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 20:26:27,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 20:26:27,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 20:26:27,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 20:26:27,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 20:26:27,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 20:26:27,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 20:26:27,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 20:26:27,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 20:26:27,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 20:26:27,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 20:26:27,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 20:26:27,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 20:26:27,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 20:26:27,299 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 20:26:27,299 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 20:26:27,301 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 20:26:27,301 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 20:26:27,301 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 20:26:27,301 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 20:26:27,302 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 20:26:27,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 20:26:27,302 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 20:26:27,302 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 20:26:27,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 20:26:27,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 20:26:27,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 20:26:27,303 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 20:26:27,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 20:26:27,304 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 20:26:27,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 20:26:27,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 20:26:27,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 20:26:27,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 20:26:27,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 20:26:27,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 20:26:27,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 20:26:27,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 20:26:27,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 20:26:27,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 20:26:27,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 20:26:27,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 20:26:27,307 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cd35ce33d4b035fe378e7f17ce504e953f9db6a [2019-11-15 20:26:27,333 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 20:26:27,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 20:26:27,347 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 20:26:27,348 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 20:26:27,348 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 20:26:27,349 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/../../sv-benchmarks/c/ldv-races/race-1_1-join.i [2019-11-15 20:26:27,395 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/data/c54857730/2b399a117df54b709ad03eb509e9d80c/FLAG9358e3a09 [2019-11-15 20:26:27,924 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 20:26:27,924 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/sv-benchmarks/c/ldv-races/race-1_1-join.i [2019-11-15 20:26:27,944 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/data/c54857730/2b399a117df54b709ad03eb509e9d80c/FLAG9358e3a09 [2019-11-15 20:26:28,417 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/data/c54857730/2b399a117df54b709ad03eb509e9d80c [2019-11-15 20:26:28,422 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 20:26:28,423 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 20:26:28,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 20:26:28,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 20:26:28,428 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 20:26:28,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:26:28" (1/1) ... [2019-11-15 20:26:28,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@583b2920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:28, skipping insertion in model container [2019-11-15 20:26:28,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 08:26:28" (1/1) ... [2019-11-15 20:26:28,439 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 20:26:28,512 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 20:26:29,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:26:29,231 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 20:26:29,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 20:26:29,589 INFO L192 MainTranslator]: Completed translation [2019-11-15 20:26:29,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29 WrapperNode [2019-11-15 20:26:29,590 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 20:26:29,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 20:26:29,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 20:26:29,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 20:26:29,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29" (1/1) ... [2019-11-15 20:26:29,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29" (1/1) ... [2019-11-15 20:26:29,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 20:26:29,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 20:26:29,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 20:26:29,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 20:26:29,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29" (1/1) ... [2019-11-15 20:26:29,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29" (1/1) ... [2019-11-15 20:26:29,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29" (1/1) ... [2019-11-15 20:26:29,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29" (1/1) ... [2019-11-15 20:26:29,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29" (1/1) ... [2019-11-15 20:26:29,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29" (1/1) ... [2019-11-15 20:26:29,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29" (1/1) ... [2019-11-15 20:26:29,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 20:26:29,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 20:26:29,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 20:26:29,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 20:26:29,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/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 [2019-11-15 20:26:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-15 20:26:29,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-15 20:26:29,825 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-15 20:26:29,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-15 20:26:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 20:26:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 20:26:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-15 20:26:29,827 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-11-15 20:26:29,827 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-11-15 20:26:29,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-15 20:26:29,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-15 20:26:29,832 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-15 20:26:30,464 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 20:26:30,464 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-15 20:26:30,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:26:30 BoogieIcfgContainer [2019-11-15 20:26:30,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 20:26:30,467 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 20:26:30,467 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 20:26:30,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 20:26:30,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 08:26:28" (1/3) ... [2019-11-15 20:26:30,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8497332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:26:30, skipping insertion in model container [2019-11-15 20:26:30,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 08:26:29" (2/3) ... [2019-11-15 20:26:30,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8497332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 08:26:30, skipping insertion in model container [2019-11-15 20:26:30,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:26:30" (3/3) ... [2019-11-15 20:26:30,473 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2019-11-15 20:26:30,526 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,526 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,527 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,527 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,527 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,528 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,528 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,537 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,537 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,537 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,537 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,538 WARN L315 ript$VariableManager]: TermVariabe Thread0_thread1_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,538 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,538 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thread1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-15 20:26:30,550 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-15 20:26:30,550 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 20:26:30,557 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2019-11-15 20:26:30,590 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-11-15 20:26:30,610 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 20:26:30,611 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 20:26:30,611 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 20:26:30,611 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 20:26:30,611 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 20:26:30,611 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 20:26:30,612 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 20:26:30,612 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 20:26:30,625 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 78 places, 82 transitions [2019-11-15 20:26:30,653 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 272 states. [2019-11-15 20:26:30,655 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states. [2019-11-15 20:26:30,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-15 20:26:30,666 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:26:30,667 INFO L380 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] [2019-11-15 20:26:30,670 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:26:30,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:26:30,675 INFO L82 PathProgramCache]: Analyzing trace with hash 382526295, now seen corresponding path program 1 times [2019-11-15 20:26:30,683 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:26:30,684 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036224264] [2019-11-15 20:26:30,685 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:26:30,685 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:26:30,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:26:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:26:31,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:26:31,119 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036224264] [2019-11-15 20:26:31,120 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:26:31,120 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:26:31,120 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654682361] [2019-11-15 20:26:31,124 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:26:31,125 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:26:31,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:26:31,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:26:31,141 INFO L87 Difference]: Start difference. First operand 272 states. Second operand 5 states. [2019-11-15 20:26:31,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:26:31,284 INFO L93 Difference]: Finished difference Result 270 states and 452 transitions. [2019-11-15 20:26:31,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 20:26:31,288 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-15 20:26:31,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:26:31,306 INFO L225 Difference]: With dead ends: 270 [2019-11-15 20:26:31,306 INFO L226 Difference]: Without dead ends: 234 [2019-11-15 20:26:31,309 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:26:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2019-11-15 20:26:31,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2019-11-15 20:26:31,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2019-11-15 20:26:31,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 395 transitions. [2019-11-15 20:26:31,405 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 395 transitions. Word has length 22 [2019-11-15 20:26:31,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:26:31,406 INFO L462 AbstractCegarLoop]: Abstraction has 234 states and 395 transitions. [2019-11-15 20:26:31,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:26:31,406 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 395 transitions. [2019-11-15 20:26:31,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-15 20:26:31,408 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:26:31,409 INFO L380 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, 1, 1, 1, 1] [2019-11-15 20:26:31,409 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:26:31,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:26:31,410 INFO L82 PathProgramCache]: Analyzing trace with hash 526427509, now seen corresponding path program 1 times [2019-11-15 20:26:31,410 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:26:31,410 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985748204] [2019-11-15 20:26:31,410 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:26:31,411 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:26:31,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:26:31,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:26:31,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:26:31,593 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985748204] [2019-11-15 20:26:31,594 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:26:31,594 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:26:31,594 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219786578] [2019-11-15 20:26:31,595 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:26:31,596 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:26:31,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:26:31,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:26:31,596 INFO L87 Difference]: Start difference. First operand 234 states and 395 transitions. Second operand 5 states. [2019-11-15 20:26:31,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:26:31,738 INFO L93 Difference]: Finished difference Result 232 states and 393 transitions. [2019-11-15 20:26:31,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:26:31,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2019-11-15 20:26:31,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:26:31,741 INFO L225 Difference]: With dead ends: 232 [2019-11-15 20:26:31,742 INFO L226 Difference]: Without dead ends: 226 [2019-11-15 20:26:31,742 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:26:31,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2019-11-15 20:26:31,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2019-11-15 20:26:31,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2019-11-15 20:26:31,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 387 transitions. [2019-11-15 20:26:31,773 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 387 transitions. Word has length 30 [2019-11-15 20:26:31,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:26:31,773 INFO L462 AbstractCegarLoop]: Abstraction has 226 states and 387 transitions. [2019-11-15 20:26:31,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:26:31,774 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 387 transitions. [2019-11-15 20:26:31,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-11-15 20:26:31,777 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:26:31,777 INFO L380 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 20:26:31,777 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:26:31,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:26:31,778 INFO L82 PathProgramCache]: Analyzing trace with hash 577163515, now seen corresponding path program 1 times [2019-11-15 20:26:31,784 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:26:31,784 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600289643] [2019-11-15 20:26:31,784 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:26:31,784 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:26:31,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:26:31,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:26:31,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:26:31,957 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600289643] [2019-11-15 20:26:31,957 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:26:31,957 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:26:31,957 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637159775] [2019-11-15 20:26:31,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:26:31,958 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:26:31,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:26:31,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:26:31,958 INFO L87 Difference]: Start difference. First operand 226 states and 387 transitions. Second operand 5 states. [2019-11-15 20:26:32,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:26:32,071 INFO L93 Difference]: Finished difference Result 196 states and 329 transitions. [2019-11-15 20:26:32,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:26:32,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 35 [2019-11-15 20:26:32,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:26:32,073 INFO L225 Difference]: With dead ends: 196 [2019-11-15 20:26:32,073 INFO L226 Difference]: Without dead ends: 156 [2019-11-15 20:26:32,073 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:26:32,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-11-15 20:26:32,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2019-11-15 20:26:32,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-11-15 20:26:32,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 254 transitions. [2019-11-15 20:26:32,083 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 254 transitions. Word has length 35 [2019-11-15 20:26:32,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:26:32,084 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 254 transitions. [2019-11-15 20:26:32,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:26:32,084 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 254 transitions. [2019-11-15 20:26:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-11-15 20:26:32,092 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 20:26:32,093 INFO L380 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, 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, 1, 1, 1, 1] [2019-11-15 20:26:32,093 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 20:26:32,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 20:26:32,093 INFO L82 PathProgramCache]: Analyzing trace with hash 646698672, now seen corresponding path program 1 times [2019-11-15 20:26:32,093 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 20:26:32,093 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017755088] [2019-11-15 20:26:32,094 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:26:32,094 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 20:26:32,094 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 20:26:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 20:26:32,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 20:26:32,251 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017755088] [2019-11-15 20:26:32,251 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 20:26:32,251 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 20:26:32,251 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16336732] [2019-11-15 20:26:32,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 20:26:32,252 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 20:26:32,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 20:26:32,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 20:26:32,252 INFO L87 Difference]: Start difference. First operand 156 states and 254 transitions. Second operand 5 states. [2019-11-15 20:26:32,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 20:26:32,328 INFO L93 Difference]: Finished difference Result 154 states and 252 transitions. [2019-11-15 20:26:32,328 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 20:26:32,329 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2019-11-15 20:26:32,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 20:26:32,329 INFO L225 Difference]: With dead ends: 154 [2019-11-15 20:26:32,329 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 20:26:32,330 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-15 20:26:32,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 20:26:32,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 20:26:32,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 20:26:32,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 20:26:32,330 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 56 [2019-11-15 20:26:32,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 20:26:32,331 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 20:26:32,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 20:26:32,331 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 20:26:32,331 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 20:26:32,334 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-11-15 20:26:32,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 08:26:32 BasicIcfg [2019-11-15 20:26:32,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 20:26:32,336 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 20:26:32,336 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 20:26:32,337 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 20:26:32,337 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 08:26:30" (3/4) ... [2019-11-15 20:26:32,340 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 20:26:32,346 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2019-11-15 20:26:32,351 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-15 20:26:32,351 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-15 20:26:32,394 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_17613e41-2f1b-454b-b3d4-8fc1d74c6e08/bin/uautomizer/witness.graphml [2019-11-15 20:26:32,394 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 20:26:32,396 INFO L168 Benchmark]: Toolchain (without parser) took 3972.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -132.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2019-11-15 20:26:32,397 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:26:32,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1166.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -68.1 MB). Peak memory consumption was 88.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:26:32,398 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:26:32,398 INFO L168 Benchmark]: Boogie Preprocessor took 44.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-15 20:26:32,399 INFO L168 Benchmark]: RCFGBuilder took 722.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 963.5 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2019-11-15 20:26:32,399 INFO L168 Benchmark]: TraceAbstraction took 1869.32 ms. Allocated memory is still 1.2 GB. Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -120.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 20:26:32,400 INFO L168 Benchmark]: Witness Printer took 58.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-11-15 20:26:32,402 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1166.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -68.1 MB). Peak memory consumption was 88.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 100.06 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 44.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 722.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 963.5 MB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1869.32 ms. Allocated memory is still 1.2 GB. Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -120.8 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 58.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 92 locations, 5 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 292 SDtfs, 307 SDslu, 550 SDs, 0 SdLazy, 63 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 139 ConstructedInterpolants, 0 QuantifiedInterpolants, 6992 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...