./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe035_rmo.opt_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/safe035_rmo.opt_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 c735c61ed1e63bb3a2a374efde66fab7a9daec6d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:43:51,496 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:43:51,498 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:43:51,512 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:43:51,512 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:43:51,513 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:43:51,515 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:43:51,517 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:43:51,519 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:43:51,520 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:43:51,521 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:43:51,521 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:43:51,522 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:43:51,523 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:43:51,524 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:43:51,526 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:43:51,526 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:43:51,528 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:43:51,531 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:43:51,532 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:43:51,533 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:43:51,534 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:43:51,537 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:43:51,538 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:43:51,538 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:43:51,539 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:43:51,540 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:43:51,541 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:43:51,542 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:43:51,543 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:43:51,544 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:43:51,544 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:43:51,545 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:43:51,545 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:43:51,546 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:43:51,547 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:43:51,547 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:43:51,563 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:43:51,563 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:43:51,564 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:43:51,564 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:43:51,566 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:43:51,566 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:43:51,566 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:43:51,566 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:43:51,566 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:43:51,566 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:43:51,567 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:43:51,567 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:43:51,568 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:43:51,568 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:43:51,568 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:43:51,568 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:43:51,568 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:43:51,568 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:43:51,569 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:43:51,569 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:43:51,569 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:43:51,569 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:43:51,569 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:43:51,569 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:43:51,571 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:43:51,571 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:43:51,572 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:43:51,572 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:43:51,572 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:43:51,572 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:43:51,572 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 -> c735c61ed1e63bb3a2a374efde66fab7a9daec6d [2018-11-28 20:43:51,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:43:51,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:43:51,643 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:43:51,645 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:43:51,645 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:43:51,646 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe035_rmo.opt_true-unreach-call.i [2018-11-28 20:43:51,710 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0184db442/218c44e8ed3145ab9a2ee439e0780740/FLAG55ea95e96 [2018-11-28 20:43:52,224 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:43:52,225 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe035_rmo.opt_true-unreach-call.i [2018-11-28 20:43:52,251 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0184db442/218c44e8ed3145ab9a2ee439e0780740/FLAG55ea95e96 [2018-11-28 20:43:52,522 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0184db442/218c44e8ed3145ab9a2ee439e0780740 [2018-11-28 20:43:52,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:43:52,528 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:43:52,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:52,529 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:43:52,535 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:43:52,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:52" (1/1) ... [2018-11-28 20:43:52,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e2ec4ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:52, skipping insertion in model container [2018-11-28 20:43:52,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:43:52" (1/1) ... [2018-11-28 20:43:52,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:43:52,612 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:43:53,077 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:53,095 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:43:53,264 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:43:53,373 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:43:53,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53 WrapperNode [2018-11-28 20:43:53,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:43:53,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:53,375 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:43:53,375 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:43:53,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53" (1/1) ... [2018-11-28 20:43:53,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53" (1/1) ... [2018-11-28 20:43:53,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:43:53,450 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:43:53,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:43:53,451 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:43:53,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53" (1/1) ... [2018-11-28 20:43:53,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53" (1/1) ... [2018-11-28 20:43:53,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53" (1/1) ... [2018-11-28 20:43:53,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53" (1/1) ... [2018-11-28 20:43:53,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53" (1/1) ... [2018-11-28 20:43:53,496 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53" (1/1) ... [2018-11-28 20:43:53,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53" (1/1) ... [2018-11-28 20:43:53,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:43:53,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:43:53,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:43:53,511 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:43:53,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53" (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 20:43:53,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:43:53,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:43:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:43:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:43:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:43:53,588 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:43:53,588 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:43:53,589 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:43:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:43:53,589 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:43:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:43:53,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:43:53,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:43:53,593 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 20:43:54,107 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:43:54,108 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:43:54,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:54 BoogieIcfgContainer [2018-11-28 20:43:54,108 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:43:54,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:43:54,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:43:54,113 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:43:54,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:43:52" (1/3) ... [2018-11-28 20:43:54,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343067ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:54, skipping insertion in model container [2018-11-28 20:43:54,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:43:53" (2/3) ... [2018-11-28 20:43:54,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@343067ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:43:54, skipping insertion in model container [2018-11-28 20:43:54,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:54" (3/3) ... [2018-11-28 20:43:54,121 INFO L112 eAbstractionObserver]: Analyzing ICFG safe035_rmo.opt_true-unreach-call.i [2018-11-28 20:43:54,168 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,168 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,168 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,168 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,169 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,169 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,169 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,169 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,169 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,169 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,170 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,170 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,170 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,170 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,171 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,174 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,174 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,174 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,174 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,175 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,175 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,175 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,175 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,175 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,176 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,177 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,177 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,177 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,177 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,177 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:43:54,212 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:43:54,213 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:43:54,222 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:43:54,240 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:43:54,263 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:43:54,264 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:43:54,264 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:43:54,264 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:43:54,264 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:43:54,264 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:43:54,264 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:43:54,265 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:43:54,265 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:43:54,275 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2018-11-28 20:43:54,434 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2018-11-28 20:43:54,437 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2018-11-28 20:43:54,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 20:43:54,468 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:54,469 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 20:43:54,472 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:54,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:54,480 INFO L82 PathProgramCache]: Analyzing trace with hash 926811069, now seen corresponding path program 1 times [2018-11-28 20:43:54,483 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:54,483 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:54,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:54,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:54,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:54,842 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 20:43:54,845 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:54,846 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:43:54,850 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:43:54,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:43:54,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:43:54,875 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2018-11-28 20:43:55,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:55,193 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2018-11-28 20:43:55,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:43:55,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2018-11-28 20:43:55,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:55,247 INFO L225 Difference]: With dead ends: 2493 [2018-11-28 20:43:55,249 INFO L226 Difference]: Without dead ends: 1128 [2018-11-28 20:43:55,252 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 20:43:55,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2018-11-28 20:43:55,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2018-11-28 20:43:55,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2018-11-28 20:43:55,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2018-11-28 20:43:55,418 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2018-11-28 20:43:55,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:55,418 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2018-11-28 20:43:55,419 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:43:55,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2018-11-28 20:43:55,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:43:55,427 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:55,427 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 20:43:55,428 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:55,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:55,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1479075055, now seen corresponding path program 1 times [2018-11-28 20:43:55,428 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:55,429 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:55,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:55,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:55,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:55,755 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 20:43:55,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:55,757 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:43:55,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:43:55,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:43:55,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:43:55,763 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2018-11-28 20:43:56,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:56,189 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2018-11-28 20:43:56,193 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:43:56,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2018-11-28 20:43:56,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:56,203 INFO L225 Difference]: With dead ends: 1168 [2018-11-28 20:43:56,203 INFO L226 Difference]: Without dead ends: 1044 [2018-11-28 20:43:56,204 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:56,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2018-11-28 20:43:56,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2018-11-28 20:43:56,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2018-11-28 20:43:56,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2018-11-28 20:43:56,248 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2018-11-28 20:43:56,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:56,248 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2018-11-28 20:43:56,249 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:43:56,249 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2018-11-28 20:43:56,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:43:56,252 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:56,252 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 20:43:56,253 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:56,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:56,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1495948265, now seen corresponding path program 1 times [2018-11-28 20:43:56,253 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:56,253 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:56,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:56,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:56,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:56,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:56,457 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 20:43:56,457 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:56,457 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:43:56,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:43:56,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:43:56,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:43:56,458 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2018-11-28 20:43:56,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:56,725 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2018-11-28 20:43:56,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:56,726 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2018-11-28 20:43:56,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:56,732 INFO L225 Difference]: With dead ends: 820 [2018-11-28 20:43:56,732 INFO L226 Difference]: Without dead ends: 708 [2018-11-28 20:43:56,733 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 20:43:56,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2018-11-28 20:43:56,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2018-11-28 20:43:56,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-28 20:43:56,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2018-11-28 20:43:56,757 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2018-11-28 20:43:56,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:56,758 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2018-11-28 20:43:56,758 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:43:56,758 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2018-11-28 20:43:56,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:56,762 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:56,762 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 20:43:56,762 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:56,763 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:56,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1067835993, now seen corresponding path program 1 times [2018-11-28 20:43:56,763 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:56,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:56,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:56,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:56,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:56,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:57,008 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 20:43:57,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:57,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:43:57,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:43:57,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:43:57,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:43:57,010 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 8 states. [2018-11-28 20:43:57,547 WARN L180 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 10 [2018-11-28 20:43:58,334 WARN L180 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 23 [2018-11-28 20:43:58,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:58,449 INFO L93 Difference]: Finished difference Result 2084 states and 6275 transitions. [2018-11-28 20:43:58,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 20:43:58,451 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 33 [2018-11-28 20:43:58,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:58,463 INFO L225 Difference]: With dead ends: 2084 [2018-11-28 20:43:58,463 INFO L226 Difference]: Without dead ends: 1220 [2018-11-28 20:43:58,464 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2018-11-28 20:43:58,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2018-11-28 20:43:58,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 708. [2018-11-28 20:43:58,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2018-11-28 20:43:58,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2043 transitions. [2018-11-28 20:43:58,494 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2043 transitions. Word has length 33 [2018-11-28 20:43:58,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:58,494 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2043 transitions. [2018-11-28 20:43:58,494 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:43:58,494 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2043 transitions. [2018-11-28 20:43:58,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:58,497 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:58,497 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 20:43:58,497 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:58,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:58,498 INFO L82 PathProgramCache]: Analyzing trace with hash -166234795, now seen corresponding path program 2 times [2018-11-28 20:43:58,498 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:58,498 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:58,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:58,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:43:58,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:58,677 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 20:43:58,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:58,677 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:58,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:58,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:58,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:58,678 INFO L87 Difference]: Start difference. First operand 708 states and 2043 transitions. Second operand 7 states. [2018-11-28 20:43:58,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:58,980 INFO L93 Difference]: Finished difference Result 1876 states and 5635 transitions. [2018-11-28 20:43:58,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-28 20:43:58,986 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:43:58,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:58,991 INFO L225 Difference]: With dead ends: 1876 [2018-11-28 20:43:58,991 INFO L226 Difference]: Without dead ends: 572 [2018-11-28 20:43:58,992 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2018-11-28 20:43:58,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2018-11-28 20:43:59,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2018-11-28 20:43:59,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 572 states. [2018-11-28 20:43:59,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 1703 transitions. [2018-11-28 20:43:59,012 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 1703 transitions. Word has length 33 [2018-11-28 20:43:59,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:59,012 INFO L480 AbstractCegarLoop]: Abstraction has 572 states and 1703 transitions. [2018-11-28 20:43:59,013 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:59,013 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 1703 transitions. [2018-11-28 20:43:59,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:43:59,016 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:43:59,017 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 20:43:59,021 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:43:59,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:43:59,022 INFO L82 PathProgramCache]: Analyzing trace with hash -659065723, now seen corresponding path program 3 times [2018-11-28 20:43:59,022 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:43:59,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:43:59,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:59,026 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:43:59,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:43:59,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:43:59,405 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 20:43:59,405 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:43:59,405 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:43:59,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:43:59,406 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:43:59,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:43:59,407 INFO L87 Difference]: Start difference. First operand 572 states and 1703 transitions. Second operand 7 states. [2018-11-28 20:43:59,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:43:59,546 INFO L93 Difference]: Finished difference Result 444 states and 1287 transitions. [2018-11-28 20:43:59,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:43:59,546 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-11-28 20:43:59,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:43:59,547 INFO L225 Difference]: With dead ends: 444 [2018-11-28 20:43:59,547 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:43:59,548 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 20:43:59,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:43:59,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:43:59,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:43:59,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:43:59,548 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-11-28 20:43:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:43:59,551 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:43:59,551 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:43:59,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:43:59,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:43:59,556 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:43:59,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:43:59 BasicIcfg [2018-11-28 20:43:59,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:43:59,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:43:59,559 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:43:59,559 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:43:59,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:43:54" (3/4) ... [2018-11-28 20:43:59,564 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:43:59,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:43:59,571 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:43:59,572 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:43:59,577 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:43:59,577 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:43:59,627 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:43:59,628 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:43:59,629 INFO L168 Benchmark]: Toolchain (without parser) took 7102.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 947.3 MB in the beginning and 800.9 MB in the end (delta: 146.4 MB). Peak memory consumption was 279.6 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:59,635 INFO L168 Benchmark]: CDTParser took 0.18 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 20:43:59,636 INFO L168 Benchmark]: CACSL2BoogieTranslator took 844.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:59,638 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.84 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 20:43:59,640 INFO L168 Benchmark]: Boogie Preprocessor took 57.97 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:59,641 INFO L168 Benchmark]: RCFGBuilder took 600.65 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:59,643 INFO L168 Benchmark]: TraceAbstraction took 5448.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 800.9 MB in the end (delta: 279.8 MB). Peak memory consumption was 279.8 MB. Max. memory is 11.5 GB. [2018-11-28 20:43:59,644 INFO L168 Benchmark]: Witness Printer took 69.85 ms. Allocated memory is still 1.2 GB. Free memory is still 800.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:43:59,649 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 844.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -164.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 74.84 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 57.97 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: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 600.65 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: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5448.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 800.9 MB in the end (delta: 279.8 MB). Peak memory consumption was 279.8 MB. Max. memory is 11.5 GB. * Witness Printer took 69.85 ms. Allocated memory is still 1.2 GB. Free memory is still 800.9 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, 5.3s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 3.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 410 SDtfs, 535 SDslu, 1219 SDs, 0 SdLazy, 141 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 66 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2.5s 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, 512 StatesRemovedByMinimization, 1 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, 14142 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...