./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe004_tso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/safe004_tso.oepc_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdd404ca31686c70dbc8bc4ecac8e0500aa3a958 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 20:42:30,327 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:42:30,329 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:42:30,342 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:42:30,343 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:42:30,344 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:42:30,346 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:42:30,348 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:42:30,350 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:42:30,351 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:42:30,352 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:42:30,352 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:42:30,354 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:42:30,355 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:42:30,357 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:42:30,358 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:42:30,358 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:42:30,361 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:42:30,364 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:42:30,365 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:42:30,367 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:42:30,368 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:42:30,371 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:42:30,371 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:42:30,371 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:42:30,373 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:42:30,374 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:42:30,375 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:42:30,376 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:42:30,377 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:42:30,377 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:42:30,378 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:42:30,379 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:42:30,379 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:42:30,380 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:42:30,381 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:42:30,381 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:42:30,398 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:42:30,398 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:42:30,399 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:42:30,399 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:42:30,400 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:42:30,400 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:42:30,400 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:42:30,400 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:42:30,402 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:42:30,402 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:42:30,402 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:42:30,402 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:42:30,402 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:42:30,402 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:42:30,403 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:42:30,403 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:42:30,403 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:42:30,403 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:42:30,403 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:42:30,404 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:42:30,404 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:42:30,404 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:42:30,404 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:42:30,404 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:42:30,406 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:42:30,407 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:42:30,407 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:42:30,407 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:42:30,407 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:42:30,407 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:42:30,407 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__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 -> cdd404ca31686c70dbc8bc4ecac8e0500aa3a958 [2018-11-28 20:42:30,449 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:42:30,468 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:42:30,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:42:30,476 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:42:30,476 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:42:30,477 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe004_tso.oepc_true-unreach-call.i [2018-11-28 20:42:30,550 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a599f514a/c711232df72d481e8fe9b078e28329ae/FLAG1709d427f [2018-11-28 20:42:31,156 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:42:31,157 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe004_tso.oepc_true-unreach-call.i [2018-11-28 20:42:31,175 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a599f514a/c711232df72d481e8fe9b078e28329ae/FLAG1709d427f [2018-11-28 20:42:31,507 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a599f514a/c711232df72d481e8fe9b078e28329ae [2018-11-28 20:42:31,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:42:31,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:42:31,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:42:31,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:42:31,517 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:42:31,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:42:31" (1/1) ... [2018-11-28 20:42:31,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38010f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:31, skipping insertion in model container [2018-11-28 20:42:31,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:42:31" (1/1) ... [2018-11-28 20:42:31,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:42:31,587 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:42:32,081 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:42:32,099 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:42:32,233 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:42:32,333 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:42:32,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32 WrapperNode [2018-11-28 20:42:32,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:42:32,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:42:32,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:42:32,339 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:42:32,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32" (1/1) ... [2018-11-28 20:42:32,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32" (1/1) ... [2018-11-28 20:42:32,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:42:32,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:42:32,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:42:32,397 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:42:32,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32" (1/1) ... [2018-11-28 20:42:32,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32" (1/1) ... [2018-11-28 20:42:32,413 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32" (1/1) ... [2018-11-28 20:42:32,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32" (1/1) ... [2018-11-28 20:42:32,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32" (1/1) ... [2018-11-28 20:42:32,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32" (1/1) ... [2018-11-28 20:42:32,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32" (1/1) ... [2018-11-28 20:42:32,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:42:32,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:42:32,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:42:32,430 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:42:32,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:42:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:42:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:42:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:42:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:42:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:42:32,504 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:42:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:42:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:42:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:42:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:42:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:42:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:42:32,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:42:32,507 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 20:42:33,002 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:42:33,003 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:42:33,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:33 BoogieIcfgContainer [2018-11-28 20:42:33,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:42:33,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:42:33,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:42:33,008 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:42:33,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:42:31" (1/3) ... [2018-11-28 20:42:33,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab494db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:42:33, skipping insertion in model container [2018-11-28 20:42:33,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:32" (2/3) ... [2018-11-28 20:42:33,010 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab494db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:42:33, skipping insertion in model container [2018-11-28 20:42:33,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:33" (3/3) ... [2018-11-28 20:42:33,012 INFO L112 eAbstractionObserver]: Analyzing ICFG safe004_tso.oepc_true-unreach-call.i [2018-11-28 20:42:33,050 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,050 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,050 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,050 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,051 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,051 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,051 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,051 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,051 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,052 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,052 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,052 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,052 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,052 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,053 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,053 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,053 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,053 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,054 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,054 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,054 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,054 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,054 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,055 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,055 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,055 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,055 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,055 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,056 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,056 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:33,099 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:42:33,099 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:42:33,108 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:42:33,125 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:42:33,152 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:42:33,152 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:42:33,153 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:42:33,153 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:42:33,153 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:42:33,153 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:42:33,153 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:42:33,153 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:42:33,153 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:42:33,163 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2018-11-28 20:42:33,284 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2018-11-28 20:42:33,287 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2018-11-28 20:42:33,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 20:42:33,310 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:33,311 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, 1, 1] [2018-11-28 20:42:33,314 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:33,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:33,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1523724345, now seen corresponding path program 1 times [2018-11-28 20:42:33,323 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:33,324 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:33,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:33,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:33,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:33,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:33,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:33,682 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:33,683 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:42:33,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:42:33,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:42:33,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:42:33,706 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2018-11-28 20:42:34,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:34,059 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2018-11-28 20:42:34,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:42:34,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-28 20:42:34,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:34,097 INFO L225 Difference]: With dead ends: 2492 [2018-11-28 20:42:34,097 INFO L226 Difference]: Without dead ends: 1127 [2018-11-28 20:42:34,099 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:42:34,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-11-28 20:42:34,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2018-11-28 20:42:34,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2018-11-28 20:42:34,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2018-11-28 20:42:34,254 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2018-11-28 20:42:34,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:34,255 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2018-11-28 20:42:34,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:42:34,256 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2018-11-28 20:42:34,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 20:42:34,262 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:34,262 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, 1, 1, 1] [2018-11-28 20:42:34,263 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:34,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:34,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1285499803, now seen corresponding path program 1 times [2018-11-28 20:42:34,264 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:34,264 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:34,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:34,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:34,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:34,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:34,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:34,426 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:42:34,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:42:34,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:42:34,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:42:34,429 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2018-11-28 20:42:34,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:34,970 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2018-11-28 20:42:34,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:42:34,973 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-11-28 20:42:34,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:34,982 INFO L225 Difference]: With dead ends: 1167 [2018-11-28 20:42:34,982 INFO L226 Difference]: Without dead ends: 1043 [2018-11-28 20:42:34,983 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:34,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-11-28 20:42:35,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2018-11-28 20:42:35,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-11-28 20:42:35,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2018-11-28 20:42:35,032 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2018-11-28 20:42:35,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:35,033 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2018-11-28 20:42:35,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:42:35,033 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2018-11-28 20:42:35,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:42:35,037 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:35,037 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, 1, 1, 1, 1] [2018-11-28 20:42:35,037 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:35,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:35,038 INFO L82 PathProgramCache]: Analyzing trace with hash 171977797, now seen corresponding path program 1 times [2018-11-28 20:42:35,038 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:35,038 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:35,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:35,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:35,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:35,258 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:35,258 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:42:35,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:42:35,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:42:35,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:42:35,262 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2018-11-28 20:42:35,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:35,526 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2018-11-28 20:42:35,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:42:35,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-28 20:42:35,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:35,535 INFO L225 Difference]: With dead ends: 819 [2018-11-28 20:42:35,535 INFO L226 Difference]: Without dead ends: 707 [2018-11-28 20:42:35,535 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:42:35,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-11-28 20:42:35,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2018-11-28 20:42:35,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2018-11-28 20:42:35,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2018-11-28 20:42:35,564 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2018-11-28 20:42:35,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:35,564 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2018-11-28 20:42:35,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:42:35,565 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2018-11-28 20:42:35,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:42:35,568 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:35,568 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, 1, 1, 1, 1, 1] [2018-11-28 20:42:35,568 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:35,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:35,569 INFO L82 PathProgramCache]: Analyzing trace with hash -438647425, now seen corresponding path program 1 times [2018-11-28 20:42:35,569 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:35,570 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:35,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:35,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:35,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:35,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:35,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:35,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:42:35,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:42:35,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:42:35,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:42:35,851 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 6 states. [2018-11-28 20:42:36,302 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-28 20:42:36,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:36,356 INFO L93 Difference]: Finished difference Result 1171 states and 3450 transitions. [2018-11-28 20:42:36,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:42:36,357 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-28 20:42:36,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:36,365 INFO L225 Difference]: With dead ends: 1171 [2018-11-28 20:42:36,365 INFO L226 Difference]: Without dead ends: 655 [2018-11-28 20:42:36,367 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:42:36,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2018-11-28 20:42:36,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 655. [2018-11-28 20:42:36,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 655 states. [2018-11-28 20:42:36,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 1930 transitions. [2018-11-28 20:42:36,397 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 1930 transitions. Word has length 32 [2018-11-28 20:42:36,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:36,397 INFO L480 AbstractCegarLoop]: Abstraction has 655 states and 1930 transitions. [2018-11-28 20:42:36,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:42:36,399 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 1930 transitions. [2018-11-28 20:42:36,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:42:36,402 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:36,402 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, 1, 1, 1, 1, 1] [2018-11-28 20:42:36,402 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:36,403 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:36,404 INFO L82 PathProgramCache]: Analyzing trace with hash -2071656967, now seen corresponding path program 2 times [2018-11-28 20:42:36,404 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:36,404 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:36,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:36,408 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:36,408 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:37,034 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 10 [2018-11-28 20:42:37,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:37,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:37,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 20:42:37,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 20:42:37,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 20:42:37,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-11-28 20:42:37,224 INFO L87 Difference]: Start difference. First operand 655 states and 1930 transitions. Second operand 10 states. [2018-11-28 20:42:37,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:37,727 INFO L93 Difference]: Finished difference Result 1039 states and 3114 transitions. [2018-11-28 20:42:37,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 20:42:37,728 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2018-11-28 20:42:37,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:37,734 INFO L225 Difference]: With dead ends: 1039 [2018-11-28 20:42:37,734 INFO L226 Difference]: Without dead ends: 575 [2018-11-28 20:42:37,734 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2018-11-28 20:42:37,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2018-11-28 20:42:37,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2018-11-28 20:42:37,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2018-11-28 20:42:37,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 1710 transitions. [2018-11-28 20:42:37,755 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 1710 transitions. Word has length 32 [2018-11-28 20:42:37,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:37,756 INFO L480 AbstractCegarLoop]: Abstraction has 575 states and 1710 transitions. [2018-11-28 20:42:37,756 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 20:42:37,756 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 1710 transitions. [2018-11-28 20:42:37,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:42:37,758 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:37,758 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, 1, 1, 1, 1, 1] [2018-11-28 20:42:37,759 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:37,759 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:37,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1109604127, now seen corresponding path program 3 times [2018-11-28 20:42:37,759 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:37,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:37,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:37,762 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:42:37,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:37,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:37,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:37,938 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:42:37,938 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:42:37,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:42:37,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:37,939 INFO L87 Difference]: Start difference. First operand 575 states and 1710 transitions. Second operand 7 states. [2018-11-28 20:42:38,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:38,233 INFO L93 Difference]: Finished difference Result 447 states and 1294 transitions. [2018-11-28 20:42:38,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:42:38,233 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-11-28 20:42:38,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:38,235 INFO L225 Difference]: With dead ends: 447 [2018-11-28 20:42:38,235 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:42:38,235 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:42:38,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:42:38,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:42:38,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:42:38,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:42:38,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-28 20:42:38,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:38,238 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:42:38,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:42:38,238 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:42:38,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:42:38,243 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:42:38,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:42:38 BasicIcfg [2018-11-28 20:42:38,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:42:38,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:42:38,246 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:42:38,246 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:42:38,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:33" (3/4) ... [2018-11-28 20:42:38,250 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:42:38,258 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:42:38,258 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:42:38,258 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:42:38,264 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:42:38,264 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:42:38,316 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:42:38,316 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:42:38,317 INFO L168 Benchmark]: Toolchain (without parser) took 6805.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 947.3 MB in the beginning and 829.9 MB in the end (delta: 117.5 MB). Peak memory consumption was 246.4 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:38,318 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:42:38,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 824.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -156.2 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:38,319 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.33 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. [2018-11-28 20:42:38,320 INFO L168 Benchmark]: Boogie Preprocessor took 31.97 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:38,321 INFO L168 Benchmark]: RCFGBuilder took 574.50 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:38,321 INFO L168 Benchmark]: TraceAbstraction took 5240.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 836.6 MB in the end (delta: 242.4 MB). Peak memory consumption was 242.4 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:38,322 INFO L168 Benchmark]: Witness Printer took 70.23 ms. Allocated memory is still 1.2 GB. Free memory was 836.6 MB in the beginning and 829.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:38,327 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 824.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -156.2 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.33 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. * Boogie Preprocessor took 31.97 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 574.50 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5240.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 836.6 MB in the end (delta: 242.4 MB). Peak memory consumption was 242.4 MB. Max. memory is 11.5 GB. * Witness Printer took 70.23 ms. Allocated memory is still 1.2 GB. Free memory was 836.6 MB in the beginning and 829.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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 7 procedures, 70 locations, 1 error locations. SAFE Result, 5.1s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 356 SDtfs, 394 SDslu, 1100 SDs, 0 SdLazy, 159 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred 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: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 15595 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...