./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe002_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/safe002_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 7f5661ba546a9dbbc4de94e5b2cef930a462f3b3 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:42:27,499 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:42:27,501 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:42:27,518 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:42:27,518 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:42:27,520 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:42:27,524 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:42:27,526 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:42:27,536 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:42:27,537 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:42:27,542 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:42:27,542 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:42:27,543 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:42:27,545 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:42:27,549 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:42:27,552 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:42:27,553 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:42:27,557 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:42:27,560 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:42:27,564 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:42:27,565 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:42:27,571 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:42:27,575 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:42:27,575 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:42:27,576 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:42:27,577 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:42:27,578 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:42:27,579 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:42:27,580 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:42:27,581 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:42:27,581 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:42:27,581 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:42:27,582 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:42:27,582 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:42:27,583 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:42:27,584 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:42:27,585 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:42:27,600 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:42:27,600 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:42:27,601 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:42:27,601 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:42:27,603 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:42:27,603 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:42:27,603 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:42:27,603 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:42:27,603 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:42:27,604 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:42:27,604 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:42:27,604 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:42:27,604 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:42:27,604 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:42:27,604 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:42:27,606 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:42:27,606 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:42:27,606 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:42:27,606 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:42:27,607 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:42:27,607 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:42:27,608 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:42:27,608 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:42:27,608 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:42:27,608 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:42:27,608 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:42:27,608 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:42:27,609 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:42:27,609 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:42:27,609 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:42:27,609 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 -> 7f5661ba546a9dbbc4de94e5b2cef930a462f3b3 [2018-11-28 20:42:27,652 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:42:27,673 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:42:27,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:42:27,679 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:42:27,680 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:42:27,681 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe002_tso.oepc_true-unreach-call.i [2018-11-28 20:42:27,756 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4c18fb27/0963185828904a798bc3211f20546626/FLAGd0a9118c1 [2018-11-28 20:42:28,305 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:42:28,306 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe002_tso.oepc_true-unreach-call.i [2018-11-28 20:42:28,329 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4c18fb27/0963185828904a798bc3211f20546626/FLAGd0a9118c1 [2018-11-28 20:42:28,605 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4c18fb27/0963185828904a798bc3211f20546626 [2018-11-28 20:42:28,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:42:28,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:42:28,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:42:28,611 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:42:28,615 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:42:28,616 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:42:28" (1/1) ... [2018-11-28 20:42:28,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22199964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:28, skipping insertion in model container [2018-11-28 20:42:28,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:42:28" (1/1) ... [2018-11-28 20:42:28,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:42:28,697 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:42:29,123 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:42:29,138 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:42:29,297 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:42:29,418 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:42:29,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29 WrapperNode [2018-11-28 20:42:29,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:42:29,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:42:29,420 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:42:29,421 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:42:29,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29" (1/1) ... [2018-11-28 20:42:29,457 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29" (1/1) ... [2018-11-28 20:42:29,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:42:29,492 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:42:29,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:42:29,492 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:42:29,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29" (1/1) ... [2018-11-28 20:42:29,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29" (1/1) ... [2018-11-28 20:42:29,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29" (1/1) ... [2018-11-28 20:42:29,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29" (1/1) ... [2018-11-28 20:42:29,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29" (1/1) ... [2018-11-28 20:42:29,530 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29" (1/1) ... [2018-11-28 20:42:29,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29" (1/1) ... [2018-11-28 20:42:29,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:42:29,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:42:29,545 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:42:29,545 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:42:29,546 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:42:29,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:42:29,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:42:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:42:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:42:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:42:29,625 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:42:29,625 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:42:29,626 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:42:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:42:29,626 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:42:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:42:29,626 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:42:29,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:42:29,630 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 20:42:30,176 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:42:30,176 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:42:30,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:30 BoogieIcfgContainer [2018-11-28 20:42:30,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:42:30,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:42:30,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:42:30,183 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:42:30,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:42:28" (1/3) ... [2018-11-28 20:42:30,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357ac59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:42:30, skipping insertion in model container [2018-11-28 20:42:30,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:29" (2/3) ... [2018-11-28 20:42:30,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@357ac59b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:42:30, skipping insertion in model container [2018-11-28 20:42:30,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:30" (3/3) ... [2018-11-28 20:42:30,187 INFO L112 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc_true-unreach-call.i [2018-11-28 20:42:30,224 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,224 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,225 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,225 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,225 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,225 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,225 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,226 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,226 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,226 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,226 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,226 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,227 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,227 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,227 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,227 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,227 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,228 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,228 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,228 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,228 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,228 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,229 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,229 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,229 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,229 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,230 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,230 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,230 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,230 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:30,277 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:42:30,277 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:42:30,286 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:42:30,304 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:42:30,331 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:42:30,332 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:42:30,332 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:42:30,332 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:42:30,333 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:42:30,333 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:42:30,333 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:42:30,333 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:42:30,333 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:42:30,344 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2018-11-28 20:42:30,509 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2018-11-28 20:42:30,512 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2018-11-28 20:42:30,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 20:42:30,545 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:30,547 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 20:42:30,551 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:30,560 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:30,560 INFO L82 PathProgramCache]: Analyzing trace with hash 137484955, now seen corresponding path program 1 times [2018-11-28 20:42:30,563 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:30,564 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:30,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:30,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:30,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:30,949 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 20:42:30,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:30,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:42:30,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:42:30,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:42:30,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:42:30,979 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2018-11-28 20:42:31,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:31,340 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2018-11-28 20:42:31,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:42:31,343 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-28 20:42:31,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:31,376 INFO L225 Difference]: With dead ends: 2493 [2018-11-28 20:42:31,376 INFO L226 Difference]: Without dead ends: 1128 [2018-11-28 20:42:31,379 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 20:42:31,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2018-11-28 20:42:31,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2018-11-28 20:42:31,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2018-11-28 20:42:31,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2018-11-28 20:42:31,515 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2018-11-28 20:42:31,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:31,516 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2018-11-28 20:42:31,516 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:42:31,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2018-11-28 20:42:31,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:42:31,521 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:31,521 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 20:42:31,521 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:31,522 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:31,523 INFO L82 PathProgramCache]: Analyzing trace with hash -2018730703, now seen corresponding path program 1 times [2018-11-28 20:42:31,523 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:31,523 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:31,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:31,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:31,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:31,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:31,829 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 20:42:31,830 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:31,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:42:31,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:42:31,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:42:31,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:42:31,833 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2018-11-28 20:42:32,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:32,408 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2018-11-28 20:42:32,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:42:32,409 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-28 20:42:32,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:32,420 INFO L225 Difference]: With dead ends: 1168 [2018-11-28 20:42:32,420 INFO L226 Difference]: Without dead ends: 1044 [2018-11-28 20:42:32,422 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:32,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-11-28 20:42:32,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2018-11-28 20:42:32,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2018-11-28 20:42:32,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2018-11-28 20:42:32,472 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2018-11-28 20:42:32,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:32,473 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2018-11-28 20:42:32,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:42:32,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2018-11-28 20:42:32,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:42:32,477 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:32,478 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 20:42:32,478 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:32,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:32,479 INFO L82 PathProgramCache]: Analyzing trace with hash 691214767, now seen corresponding path program 1 times [2018-11-28 20:42:32,480 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:32,480 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:32,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:32,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:32,496 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:32,732 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 20:42:32,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:32,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:42:32,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:42:32,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:42:32,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:42:32,734 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2018-11-28 20:42:32,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:32,907 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2018-11-28 20:42:32,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:42:32,908 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-28 20:42:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:32,914 INFO L225 Difference]: With dead ends: 820 [2018-11-28 20:42:32,914 INFO L226 Difference]: Without dead ends: 708 [2018-11-28 20:42:32,916 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:42:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-28 20:42:32,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-11-28 20:42:32,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-28 20:42:32,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2018-11-28 20:42:32,942 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2018-11-28 20:42:32,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:32,943 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2018-11-28 20:42:32,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:42:32,943 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2018-11-28 20:42:32,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:42:32,946 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:32,946 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, 1] [2018-11-28 20:42:32,946 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:32,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:32,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1939982521, now seen corresponding path program 1 times [2018-11-28 20:42:32,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:32,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:32,954 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:32,956 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:32,956 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:33,137 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 20:42:33,137 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:33,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:42:33,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:42:33,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:42:33,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:33,138 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2018-11-28 20:42:33,581 WARN L180 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-28 20:42:33,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:33,597 INFO L93 Difference]: Finished difference Result 1188 states and 3491 transitions. [2018-11-28 20:42:33,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:42:33,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:42:33,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:33,603 INFO L225 Difference]: With dead ends: 1188 [2018-11-28 20:42:33,604 INFO L226 Difference]: Without dead ends: 672 [2018-11-28 20:42:33,604 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:42:33,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2018-11-28 20:42:33,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 672. [2018-11-28 20:42:33,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 672 states. [2018-11-28 20:42:33,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 672 states to 672 states and 1975 transitions. [2018-11-28 20:42:33,626 INFO L78 Accepts]: Start accepts. Automaton has 672 states and 1975 transitions. Word has length 33 [2018-11-28 20:42:33,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:33,626 INFO L480 AbstractCegarLoop]: Abstraction has 672 states and 1975 transitions. [2018-11-28 20:42:33,626 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:42:33,627 INFO L276 IsEmpty]: Start isEmpty. Operand 672 states and 1975 transitions. [2018-11-28 20:42:33,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:42:33,629 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:33,629 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, 1] [2018-11-28 20:42:33,629 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:33,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:33,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1074111855, now seen corresponding path program 2 times [2018-11-28 20:42:33,630 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:33,630 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:33,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:33,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:33,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:33,838 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 20:42:33,838 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:33,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:42:33,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:42:33,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:42:33,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:33,839 INFO L87 Difference]: Start difference. First operand 672 states and 1975 transitions. Second operand 7 states. [2018-11-28 20:42:34,404 WARN L180 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-28 20:42:34,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:34,492 INFO L93 Difference]: Finished difference Result 1056 states and 3159 transitions. [2018-11-28 20:42:34,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:42:34,493 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:42:34,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:34,500 INFO L225 Difference]: With dead ends: 1056 [2018-11-28 20:42:34,502 INFO L226 Difference]: Without dead ends: 556 [2018-11-28 20:42:34,503 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:42:34,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2018-11-28 20:42:34,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2018-11-28 20:42:34,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2018-11-28 20:42:34,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2018-11-28 20:42:34,529 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2018-11-28 20:42:34,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:34,532 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2018-11-28 20:42:34,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:42:34,532 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2018-11-28 20:42:34,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:42:34,533 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:34,540 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, 1] [2018-11-28 20:42:34,542 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:34,542 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:34,542 INFO L82 PathProgramCache]: Analyzing trace with hash -824939639, now seen corresponding path program 3 times [2018-11-28 20:42:34,543 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:34,543 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:34,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:34,549 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:42:34,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:34,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:34,902 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 20:42:34,902 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:34,903 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:42:34,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:42:34,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:42:34,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:34,904 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 7 states. [2018-11-28 20:42:35,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:35,230 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2018-11-28 20:42:35,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:42:35,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:42:35,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:35,232 INFO L225 Difference]: With dead ends: 428 [2018-11-28 20:42:35,232 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:42:35,232 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:42:35,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:42:35,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:42:35,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:42:35,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:42:35,233 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-28 20:42:35,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:35,233 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:42:35,234 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:42:35,234 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:42:35,234 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:42:35,237 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:42:35,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:42:35 BasicIcfg [2018-11-28 20:42:35,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:42:35,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:42:35,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:42:35,240 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:42:35,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:30" (3/4) ... [2018-11-28 20:42:35,245 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:42:35,253 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:42:35,253 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:42:35,253 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:42:35,259 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:42:35,259 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:42:35,308 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:42:35,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:42:35,309 INFO L168 Benchmark]: Toolchain (without parser) took 6700.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 942.0 MB in the beginning and 848.3 MB in the end (delta: 93.7 MB). Peak memory consumption was 233.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:35,310 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:42:35,311 INFO L168 Benchmark]: CACSL2BoogieTranslator took 808.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:35,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:35,313 INFO L168 Benchmark]: Boogie Preprocessor took 51.72 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:35,313 INFO L168 Benchmark]: RCFGBuilder took 633.64 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:35,314 INFO L168 Benchmark]: TraceAbstraction took 5060.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 848.3 MB in the end (delta: 233.3 MB). Peak memory consumption was 233.3 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:35,315 INFO L168 Benchmark]: Witness Printer took 68.53 ms. Allocated memory is still 1.2 GB. Free memory is still 848.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:42:35,319 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 808.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -178.3 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 71.69 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.72 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 633.64 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5060.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 848.3 MB in the end (delta: 233.3 MB). Peak memory consumption was 233.3 MB. Max. memory is 11.5 GB. * Witness Printer took 68.53 ms. Allocated memory is still 1.2 GB. Free memory is still 848.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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, 71 locations, 1 error locations. SAFE Result, 4.9s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 351 SDtfs, 420 SDslu, 949 SDs, 0 SdLazy, 110 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred 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, 1.3s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 14398 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...