./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe022_tso.opt_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe022_tso.opt_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/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 f73ee83db3a59156287c5294dd3610839992da54 ................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 14:34:25,325 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 14:34:25,326 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 14:34:25,332 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 14:34:25,332 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 14:34:25,333 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 14:34:25,334 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 14:34:25,336 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 14:34:25,337 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 14:34:25,338 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 14:34:25,338 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 14:34:25,339 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 14:34:25,339 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 14:34:25,340 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 14:34:25,341 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 14:34:25,341 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 14:34:25,342 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 14:34:25,344 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 14:34:25,345 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 14:34:25,347 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 14:34:25,347 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 14:34:25,348 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 14:34:25,350 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 14:34:25,350 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 14:34:25,350 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 14:34:25,351 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 14:34:25,352 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 14:34:25,352 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 14:34:25,353 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 14:34:25,354 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 14:34:25,354 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 14:34:25,354 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 14:34:25,354 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 14:34:25,355 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 14:34:25,355 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 14:34:25,356 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 14:34:25,356 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 14:34:25,367 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 14:34:25,367 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 14:34:25,368 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 14:34:25,368 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 14:34:25,368 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 14:34:25,368 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 14:34:25,369 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 14:34:25,369 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 14:34:25,369 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 14:34:25,369 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 14:34:25,369 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 14:34:25,369 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 14:34:25,369 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 14:34:25,370 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 14:34:25,370 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 14:34:25,370 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 14:34:25,370 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 14:34:25,371 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 14:34:25,371 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 14:34:25,371 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 14:34:25,371 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 14:34:25,371 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 14:34:25,371 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 14:34:25,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 14:34:25,372 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 14:34:25,372 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 14:34:25,372 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 14:34:25,372 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 14:34:25,372 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 14:34:25,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 14:34:25,373 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/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 -> f73ee83db3a59156287c5294dd3610839992da54 [2018-11-23 14:34:25,396 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 14:34:25,404 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 14:34:25,406 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 14:34:25,407 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 14:34:25,408 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 14:34:25,408 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-wmm/safe022_tso.opt_true-unreach-call.i [2018-11-23 14:34:25,442 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/uautomizer/data/401bcbcf1/98e57341b7174a8a8e28410c23a1190f/FLAG3e053b523 [2018-11-23 14:34:25,888 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 14:34:25,889 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/sv-benchmarks/c/pthread-wmm/safe022_tso.opt_true-unreach-call.i [2018-11-23 14:34:25,900 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/uautomizer/data/401bcbcf1/98e57341b7174a8a8e28410c23a1190f/FLAG3e053b523 [2018-11-23 14:34:25,910 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/uautomizer/data/401bcbcf1/98e57341b7174a8a8e28410c23a1190f [2018-11-23 14:34:25,912 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 14:34:25,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 14:34:25,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 14:34:25,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 14:34:25,916 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 14:34:25,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:25" (1/1) ... [2018-11-23 14:34:25,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@143d1c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:25, skipping insertion in model container [2018-11-23 14:34:25,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:34:25" (1/1) ... [2018-11-23 14:34:25,924 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 14:34:25,952 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 14:34:26,141 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:34:26,148 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 14:34:26,215 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 14:34:26,264 INFO L195 MainTranslator]: Completed translation [2018-11-23 14:34:26,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26 WrapperNode [2018-11-23 14:34:26,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 14:34:26,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 14:34:26,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 14:34:26,265 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 14:34:26,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2018-11-23 14:34:26,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2018-11-23 14:34:26,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 14:34:26,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 14:34:26,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 14:34:26,293 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 14:34:26,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2018-11-23 14:34:26,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2018-11-23 14:34:26,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2018-11-23 14:34:26,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2018-11-23 14:34:26,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2018-11-23 14:34:26,305 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2018-11-23 14:34:26,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... [2018-11-23 14:34:26,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 14:34:26,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 14:34:26,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 14:34:26,308 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 14:34:26,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/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 [2018-11-23 14:34:26,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 14:34:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-23 14:34:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-23 14:34:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 14:34:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-23 14:34:26,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-23 14:34:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-23 14:34:26,344 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-23 14:34:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-23 14:34:26,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 14:34:26,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 14:34:26,345 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-23 14:34:26,512 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 14:34:26,512 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-23 14:34:26,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:26 BoogieIcfgContainer [2018-11-23 14:34:26,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 14:34:26,513 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 14:34:26,513 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 14:34:26,516 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 14:34:26,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:34:25" (1/3) ... [2018-11-23 14:34:26,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6cf9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:26, skipping insertion in model container [2018-11-23 14:34:26,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:34:26" (2/3) ... [2018-11-23 14:34:26,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c6cf9de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:34:26, skipping insertion in model container [2018-11-23 14:34:26,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:26" (3/3) ... [2018-11-23 14:34:26,520 INFO L112 eAbstractionObserver]: Analyzing ICFG safe022_tso.opt_true-unreach-call.i [2018-11-23 14:34:26,544 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,544 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,545 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,545 WARN L317 ript$VariableManager]: TermVariabe Thread0_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,545 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,545 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,545 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,545 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,546 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,546 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,546 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,546 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,546 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,546 WARN L317 ript$VariableManager]: TermVariabe Thread1_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,547 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,547 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,547 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,547 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,547 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,547 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-23 14:34:26,560 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-23 14:34:26,561 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 14:34:26,566 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 14:34:26,576 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 14:34:26,592 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 14:34:26,592 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 14:34:26,593 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 14:34:26,593 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 14:34:26,593 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 14:34:26,593 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 14:34:26,593 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 14:34:26,593 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 14:34:26,593 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 14:34:26,601 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 44places, 42 transitions [2018-11-23 14:34:26,626 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 434 states. [2018-11-23 14:34:26,628 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states. [2018-11-23 14:34:26,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-23 14:34:26,637 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:34:26,638 INFO L402 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] [2018-11-23 14:34:26,640 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:34:26,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:34:26,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1986495071, now seen corresponding path program 1 times [2018-11-23 14:34:26,647 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:34:26,647 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:34:26,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:34:26,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:34:26,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:34:26,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:34:26,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:34:26,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:34:26,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 14:34:26,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 14:34:26,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 14:34:26,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 14:34:26,840 INFO L87 Difference]: Start difference. First operand 434 states. Second operand 4 states. [2018-11-23 14:34:26,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:34:26,902 INFO L93 Difference]: Finished difference Result 444 states and 1061 transitions. [2018-11-23 14:34:26,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 14:34:26,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-11-23 14:34:26,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:34:26,912 INFO L225 Difference]: With dead ends: 444 [2018-11-23 14:34:26,913 INFO L226 Difference]: Without dead ends: 227 [2018-11-23 14:34:26,914 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:34:26,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2018-11-23 14:34:26,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2018-11-23 14:34:26,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2018-11-23 14:34:26,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 524 transitions. [2018-11-23 14:34:26,949 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 524 transitions. Word has length 25 [2018-11-23 14:34:26,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:34:26,950 INFO L480 AbstractCegarLoop]: Abstraction has 227 states and 524 transitions. [2018-11-23 14:34:26,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 14:34:26,950 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 524 transitions. [2018-11-23 14:34:26,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-23 14:34:26,951 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:34:26,951 INFO L402 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] [2018-11-23 14:34:26,951 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:34:26,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:34:26,952 INFO L82 PathProgramCache]: Analyzing trace with hash -2009742139, now seen corresponding path program 1 times [2018-11-23 14:34:26,952 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:34:26,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:34:26,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:34:26,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:34:26,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:34:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:34:27,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:34:27,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:34:27,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 14:34:27,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-23 14:34:27,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 14:34:27,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-23 14:34:27,023 INFO L87 Difference]: Start difference. First operand 227 states and 524 transitions. Second operand 5 states. [2018-11-23 14:34:27,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:34:27,059 INFO L93 Difference]: Finished difference Result 195 states and 416 transitions. [2018-11-23 14:34:27,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 14:34:27,066 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2018-11-23 14:34:27,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:34:27,068 INFO L225 Difference]: With dead ends: 195 [2018-11-23 14:34:27,068 INFO L226 Difference]: Without dead ends: 171 [2018-11-23 14:34:27,068 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:34:27,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2018-11-23 14:34:27,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2018-11-23 14:34:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 171 states. [2018-11-23 14:34:27,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 370 transitions. [2018-11-23 14:34:27,076 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 370 transitions. Word has length 26 [2018-11-23 14:34:27,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:34:27,077 INFO L480 AbstractCegarLoop]: Abstraction has 171 states and 370 transitions. [2018-11-23 14:34:27,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-23 14:34:27,077 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 370 transitions. [2018-11-23 14:34:27,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 14:34:27,078 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:34:27,078 INFO L402 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] [2018-11-23 14:34:27,078 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:34:27,078 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:34:27,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1111707995, now seen corresponding path program 1 times [2018-11-23 14:34:27,079 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:34:27,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:34:27,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:34:27,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:34:27,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:34:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:34:27,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:34:27,177 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:34:27,177 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-23 14:34:27,178 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 14:34:27,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 14:34:27,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-23 14:34:27,178 INFO L87 Difference]: Start difference. First operand 171 states and 370 transitions. Second operand 7 states. [2018-11-23 14:34:27,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:34:27,235 INFO L93 Difference]: Finished difference Result 267 states and 594 transitions. [2018-11-23 14:34:27,235 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-23 14:34:27,235 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-11-23 14:34:27,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:34:27,236 INFO L225 Difference]: With dead ends: 267 [2018-11-23 14:34:27,236 INFO L226 Difference]: Without dead ends: 167 [2018-11-23 14:34:27,236 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-23 14:34:27,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-11-23 14:34:27,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2018-11-23 14:34:27,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2018-11-23 14:34:27,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 362 transitions. [2018-11-23 14:34:27,243 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 362 transitions. Word has length 27 [2018-11-23 14:34:27,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:34:27,243 INFO L480 AbstractCegarLoop]: Abstraction has 167 states and 362 transitions. [2018-11-23 14:34:27,243 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 14:34:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 362 transitions. [2018-11-23 14:34:27,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-23 14:34:27,244 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 14:34:27,245 INFO L402 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] [2018-11-23 14:34:27,245 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 14:34:27,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 14:34:27,245 INFO L82 PathProgramCache]: Analyzing trace with hash 204449309, now seen corresponding path program 2 times [2018-11-23 14:34:27,245 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 14:34:27,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 14:34:27,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:34:27,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 14:34:27,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 14:34:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 14:34:27,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 14:34:27,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 14:34:27,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-23 14:34:27,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 14:34:27,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 14:34:27,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2018-11-23 14:34:27,346 INFO L87 Difference]: Start difference. First operand 167 states and 362 transitions. Second operand 9 states. [2018-11-23 14:34:27,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 14:34:27,448 INFO L93 Difference]: Finished difference Result 135 states and 282 transitions. [2018-11-23 14:34:27,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-23 14:34:27,448 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2018-11-23 14:34:27,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 14:34:27,448 INFO L225 Difference]: With dead ends: 135 [2018-11-23 14:34:27,448 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 14:34:27,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2018-11-23 14:34:27,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 14:34:27,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 14:34:27,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 14:34:27,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 14:34:27,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-23 14:34:27,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 14:34:27,449 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 14:34:27,449 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 14:34:27,449 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 14:34:27,449 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 14:34:27,451 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-23 14:34:27,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:34:27 BasicIcfg [2018-11-23 14:34:27,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 14:34:27,453 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 14:34:27,453 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 14:34:27,454 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 14:34:27,454 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:34:26" (3/4) ... [2018-11-23 14:34:27,457 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 14:34:27,463 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-23 14:34:27,464 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-23 14:34:27,467 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-23 14:34:27,468 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 14:34:27,496 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_85c7ffc9-dc89-4ce7-b4e7-a51d57e7d524/bin-2019/uautomizer/witness.graphml [2018-11-23 14:34:27,496 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 14:34:27,497 INFO L168 Benchmark]: Toolchain (without parser) took 1584.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 951.1 MB in the beginning and 996.4 MB in the end (delta: -45.4 MB). Peak memory consumption was 119.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:34:27,498 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:34:27,498 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. [2018-11-23 14:34:27,499 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.92 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:34:27,499 INFO L168 Benchmark]: Boogie Preprocessor took 14.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 14:34:27,499 INFO L168 Benchmark]: RCFGBuilder took 205.21 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: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. [2018-11-23 14:34:27,500 INFO L168 Benchmark]: TraceAbstraction took 939.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.7 MB in the end (delta: 109.1 MB). Peak memory consumption was 109.1 MB. Max. memory is 11.5 GB. [2018-11-23 14:34:27,500 INFO L168 Benchmark]: Witness Printer took 43.08 ms. Allocated memory is still 1.2 GB. Free memory was 999.7 MB in the beginning and 996.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 14:34:27,502 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 350.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 164.6 MB). Free memory was 951.1 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 34.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.92 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 205.21 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: 23.6 MB). Peak memory consumption was 23.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 939.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.7 MB in the end (delta: 109.1 MB). Peak memory consumption was 109.1 MB. Max. memory is 11.5 GB. * Witness Printer took 43.08 ms. Allocated memory is still 1.2 GB. Free memory was 999.7 MB in the beginning and 996.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 54 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 165 SDtfs, 173 SDslu, 489 SDs, 0 SdLazy, 82 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=434occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 7727 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...