./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/dekker.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/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-atomic/dekker.i -s /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/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 f6cb963e1fbb040f542eba054f6a77048b7f932a ..................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:59:39,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:59:39,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:59:39,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:59:39,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:59:39,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:59:39,353 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:59:39,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:59:39,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:59:39,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:59:39,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:59:39,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:59:39,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:59:39,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:59:39,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:59:39,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:59:39,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:59:39,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:59:39,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:59:39,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:59:39,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:59:39,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:59:39,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:59:39,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:59:39,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:59:39,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:59:39,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:59:39,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:59:39,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:59:39,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:59:39,381 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:59:39,381 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:59:39,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:59:39,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:59:39,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:59:39,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:59:39,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:59:39,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:59:39,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:59:39,384 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:59:39,385 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:59:39,385 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:59:39,398 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:59:39,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:59:39,399 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:59:39,400 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:59:39,400 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:59:39,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:59:39,400 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:59:39,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:59:39,400 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:59:39,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:59:39,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:59:39,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:59:39,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:59:39,401 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:59:39,401 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:59:39,401 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:59:39,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:59:39,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:59:39,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:59:39,412 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:59:39,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:59:39,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:59:39,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:59:39,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:59:39,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:59:39,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:59:39,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:59:39,413 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:59:39,413 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/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/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 -> f6cb963e1fbb040f542eba054f6a77048b7f932a [2019-10-22 08:59:39,446 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:59:39,457 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:59:39,459 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:59:39,461 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:59:39,461 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:59:39,463 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/bin/uautomizer/../../sv-benchmarks/c/pthread-atomic/dekker.i [2019-10-22 08:59:39,509 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/bin/uautomizer/data/36825e6f0/99e3509007f44af1a47a487e84438745/FLAG7eae031f1 [2019-10-22 08:59:39,950 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:59:39,951 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/sv-benchmarks/c/pthread-atomic/dekker.i [2019-10-22 08:59:39,962 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/bin/uautomizer/data/36825e6f0/99e3509007f44af1a47a487e84438745/FLAG7eae031f1 [2019-10-22 08:59:39,975 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/bin/uautomizer/data/36825e6f0/99e3509007f44af1a47a487e84438745 [2019-10-22 08:59:39,977 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:59:39,979 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:59:39,982 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:39,982 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:59:39,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:59:39,988 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:39" (1/1) ... [2019-10-22 08:59:39,990 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f23af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:39, skipping insertion in model container [2019-10-22 08:59:39,990 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:59:39" (1/1) ... [2019-10-22 08:59:39,997 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:59:40,030 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:59:40,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:40,364 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:59:40,423 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:59:40,479 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:59:40,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40 WrapperNode [2019-10-22 08:59:40,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:59:40,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:40,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:59:40,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:59:40,487 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40" (1/1) ... [2019-10-22 08:59:40,500 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40" (1/1) ... [2019-10-22 08:59:40,518 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:59:40,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:59:40,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:59:40,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:59:40,526 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40" (1/1) ... [2019-10-22 08:59:40,527 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40" (1/1) ... [2019-10-22 08:59:40,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40" (1/1) ... [2019-10-22 08:59:40,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40" (1/1) ... [2019-10-22 08:59:40,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40" (1/1) ... [2019-10-22 08:59:40,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40" (1/1) ... [2019-10-22 08:59:40,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40" (1/1) ... [2019-10-22 08:59:40,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:59:40,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:59:40,550 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:59:40,550 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:59:40,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/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 [2019-10-22 08:59:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 08:59:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-10-22 08:59:40,616 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-10-22 08:59:40,616 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-10-22 08:59:40,616 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-10-22 08:59:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 08:59:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 08:59:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 08:59:40,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:59:40,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:59:40,619 WARN L202 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-10-22 08:59:40,998 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:59:40,999 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-10-22 08:59:41,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:40 BoogieIcfgContainer [2019-10-22 08:59:41,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:59:41,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:59:41,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:59:41,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:59:41,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:59:39" (1/3) ... [2019-10-22 08:59:41,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627db45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:41, skipping insertion in model container [2019-10-22 08:59:41,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:59:40" (2/3) ... [2019-10-22 08:59:41,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@627db45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:59:41, skipping insertion in model container [2019-10-22 08:59:41,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:40" (3/3) ... [2019-10-22 08:59:41,009 INFO L109 eAbstractionObserver]: Analyzing ICFG dekker.i [2019-10-22 08:59:41,046 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,047 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,047 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,047 WARN L315 ript$VariableManager]: TermVariabe Thread0_thr2_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,048 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,049 WARN L315 ript$VariableManager]: TermVariabe |Thread0_thr2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,050 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,051 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,051 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,051 WARN L315 ript$VariableManager]: TermVariabe Thread1_thr1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,053 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,053 WARN L315 ript$VariableManager]: TermVariabe |Thread1_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-10-22 08:59:41,083 WARN L141 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-10-22 08:59:41,083 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:59:41,092 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-10-22 08:59:41,107 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-10-22 08:59:41,127 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:59:41,127 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:59:41,128 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:59:41,128 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:59:41,128 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:59:41,128 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:59:41,128 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:59:41,128 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:59:41,138 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 74 transitions [2019-10-22 08:59:41,191 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 934 states. [2019-10-22 08:59:41,193 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states. [2019-10-22 08:59:41,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 08:59:41,202 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:41,202 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:59:41,204 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:41,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:41,209 INFO L82 PathProgramCache]: Analyzing trace with hash 884026491, now seen corresponding path program 1 times [2019-10-22 08:59:41,217 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:41,217 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521565500] [2019-10-22 08:59:41,217 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:41,217 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:41,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:41,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:41,380 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521565500] [2019-10-22 08:59:41,381 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:41,381 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:41,381 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274761358] [2019-10-22 08:59:41,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:59:41,388 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:41,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:59:41,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:41,404 INFO L87 Difference]: Start difference. First operand 934 states. Second operand 3 states. [2019-10-22 08:59:41,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:41,490 INFO L93 Difference]: Finished difference Result 1075 states and 2820 transitions. [2019-10-22 08:59:41,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:59:41,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-10-22 08:59:41,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:41,511 INFO L225 Difference]: With dead ends: 1075 [2019-10-22 08:59:41,511 INFO L226 Difference]: Without dead ends: 685 [2019-10-22 08:59:41,513 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:41,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2019-10-22 08:59:41,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 631. [2019-10-22 08:59:41,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-10-22 08:59:41,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1740 transitions. [2019-10-22 08:59:41,599 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1740 transitions. Word has length 19 [2019-10-22 08:59:41,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:41,600 INFO L462 AbstractCegarLoop]: Abstraction has 631 states and 1740 transitions. [2019-10-22 08:59:41,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:59:41,600 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1740 transitions. [2019-10-22 08:59:41,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-22 08:59:41,601 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:41,601 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] [2019-10-22 08:59:41,602 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:41,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:41,602 INFO L82 PathProgramCache]: Analyzing trace with hash -471121587, now seen corresponding path program 1 times [2019-10-22 08:59:41,602 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:41,602 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650106853] [2019-10-22 08:59:41,603 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:41,603 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:41,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:41,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:41,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:41,651 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650106853] [2019-10-22 08:59:41,651 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:41,652 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:41,652 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700288638] [2019-10-22 08:59:41,653 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:59:41,653 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:41,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:59:41,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:41,654 INFO L87 Difference]: Start difference. First operand 631 states and 1740 transitions. Second operand 3 states. [2019-10-22 08:59:41,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:41,675 INFO L93 Difference]: Finished difference Result 583 states and 1568 transitions. [2019-10-22 08:59:41,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:59:41,675 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-10-22 08:59:41,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:41,678 INFO L225 Difference]: With dead ends: 583 [2019-10-22 08:59:41,679 INFO L226 Difference]: Without dead ends: 406 [2019-10-22 08:59:41,679 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:41,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2019-10-22 08:59:41,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2019-10-22 08:59:41,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2019-10-22 08:59:41,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 1091 transitions. [2019-10-22 08:59:41,700 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 1091 transitions. Word has length 22 [2019-10-22 08:59:41,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:41,701 INFO L462 AbstractCegarLoop]: Abstraction has 406 states and 1091 transitions. [2019-10-22 08:59:41,701 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:59:41,701 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 1091 transitions. [2019-10-22 08:59:41,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:59:41,708 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:41,708 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] [2019-10-22 08:59:41,709 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:41,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:41,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1512893712, now seen corresponding path program 1 times [2019-10-22 08:59:41,709 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:41,709 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080270111] [2019-10-22 08:59:41,710 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:41,710 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:41,710 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:41,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:41,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:41,792 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080270111] [2019-10-22 08:59:41,792 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:41,792 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:41,793 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082802259] [2019-10-22 08:59:41,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:59:41,793 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:41,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:59:41,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:41,794 INFO L87 Difference]: Start difference. First operand 406 states and 1091 transitions. Second operand 3 states. [2019-10-22 08:59:41,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:41,825 INFO L93 Difference]: Finished difference Result 406 states and 1076 transitions. [2019-10-22 08:59:41,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:59:41,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 08:59:41,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:41,827 INFO L225 Difference]: With dead ends: 406 [2019-10-22 08:59:41,827 INFO L226 Difference]: Without dead ends: 364 [2019-10-22 08:59:41,828 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:41,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-10-22 08:59:41,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2019-10-22 08:59:41,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2019-10-22 08:59:41,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 952 transitions. [2019-10-22 08:59:41,840 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 952 transitions. Word has length 26 [2019-10-22 08:59:41,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:41,841 INFO L462 AbstractCegarLoop]: Abstraction has 364 states and 952 transitions. [2019-10-22 08:59:41,841 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:59:41,841 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 952 transitions. [2019-10-22 08:59:41,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-10-22 08:59:41,845 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:59:41,846 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] [2019-10-22 08:59:41,846 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:59:41,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:59:41,846 INFO L82 PathProgramCache]: Analyzing trace with hash -447811862, now seen corresponding path program 1 times [2019-10-22 08:59:41,846 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:59:41,847 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838195902] [2019-10-22 08:59:41,847 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:41,847 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:59:41,847 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:59:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:59:41,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:59:41,930 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838195902] [2019-10-22 08:59:41,930 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:59:41,930 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 08:59:41,930 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843212923] [2019-10-22 08:59:41,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-22 08:59:41,931 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:59:41,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-22 08:59:41,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:41,931 INFO L87 Difference]: Start difference. First operand 364 states and 952 transitions. Second operand 3 states. [2019-10-22 08:59:41,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:59:41,958 INFO L93 Difference]: Finished difference Result 229 states and 664 transitions. [2019-10-22 08:59:41,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-22 08:59:41,959 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-10-22 08:59:41,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:59:41,959 INFO L225 Difference]: With dead ends: 229 [2019-10-22 08:59:41,959 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:59:41,960 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-22 08:59:41,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:59:41,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:59:41,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:59:41,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:59:41,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-10-22 08:59:41,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:59:41,961 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:59:41,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-22 08:59:41,961 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:59:41,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:59:41,965 INFO L303 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-10-22 08:59:41,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:59:41 BasicIcfg [2019-10-22 08:59:41,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:59:41,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:59:41,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:59:41,967 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:59:41,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:59:40" (3/4) ... [2019-10-22 08:59:41,973 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:59:41,981 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2019-10-22 08:59:41,981 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-10-22 08:59:41,987 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-10-22 08:59:41,987 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-10-22 08:59:42,023 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_41ad1883-fabc-414f-bec6-f023322a3914/bin/uautomizer/witness.graphml [2019-10-22 08:59:42,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:59:42,026 INFO L168 Benchmark]: Toolchain (without parser) took 2046.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.5 MB in the beginning and 979.3 MB in the end (delta: -34.8 MB). Peak memory consumption was 91.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:42,026 INFO L168 Benchmark]: CDTParser took 1.66 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:42,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:42,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.69 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:42,028 INFO L168 Benchmark]: Boogie Preprocessor took 31.15 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:42,028 INFO L168 Benchmark]: RCFGBuilder took 450.46 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:42,028 INFO L168 Benchmark]: TraceAbstraction took 966.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.3 MB in the end (delta: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:59:42,029 INFO L168 Benchmark]: Witness Printer took 56.87 ms. Allocated memory is still 1.2 GB. Free memory is still 979.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:59:42,031 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.66 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 497.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -150.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.69 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: 7.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.15 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: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 450.46 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 966.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 979.3 MB in the end (delta: 77.8 MB). Peak memory consumption was 77.8 MB. Max. memory is 11.5 GB. * Witness Printer took 56.87 ms. Allocated memory is still 1.2 GB. Free memory is still 979.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 95 locations, 4 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 273 SDtfs, 127 SDslu, 150 SDs, 0 SdLazy, 24 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=934occurred 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, 54 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 2543 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...