./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-atomic/peterson_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-atomic/peterson_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 a9bea0c488d2f45d989ec349e22f0d31a29496ef ............................................................................................................................................................................................................................................................................................................................................................................................................................ 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 19:35:19,056 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 19:35:19,058 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 19:35:19,074 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 19:35:19,075 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 19:35:19,077 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 19:35:19,079 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 19:35:19,081 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 19:35:19,084 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 19:35:19,090 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 19:35:19,091 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 19:35:19,092 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 19:35:19,092 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 19:35:19,093 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 19:35:19,098 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 19:35:19,098 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 19:35:19,099 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 19:35:19,101 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 19:35:19,103 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 19:35:19,105 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 19:35:19,106 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 19:35:19,107 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 19:35:19,109 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 19:35:19,109 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 19:35:19,110 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 19:35:19,111 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 19:35:19,112 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 19:35:19,113 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 19:35:19,113 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 19:35:19,115 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 19:35:19,115 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 19:35:19,116 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 19:35:19,116 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 19:35:19,116 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 19:35:19,117 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 19:35:19,118 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 19:35:19,118 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 19:35:19,138 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 19:35:19,139 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 19:35:19,140 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 19:35:19,140 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 19:35:19,140 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 19:35:19,141 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 19:35:19,141 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 19:35:19,142 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 19:35:19,142 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 19:35:19,142 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 19:35:19,142 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 19:35:19,142 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 19:35:19,142 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 19:35:19,143 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 19:35:19,143 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 19:35:19,143 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 19:35:19,143 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 19:35:19,143 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 19:35:19,143 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 19:35:19,145 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 19:35:19,145 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 19:35:19,145 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 19:35:19,146 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 19:35:19,146 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 19:35:19,146 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 19:35:19,146 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 19:35:19,146 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 19:35:19,146 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 19:35:19,147 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 19:35:19,148 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 19:35:19,148 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 -> a9bea0c488d2f45d989ec349e22f0d31a29496ef [2018-11-28 19:35:19,183 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 19:35:19,199 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 19:35:19,204 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 19:35:19,205 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 19:35:19,206 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 19:35:19,206 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-atomic/peterson_true-unreach-call.i [2018-11-28 19:35:19,267 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b82f12e79/a6ec35cdefb948f6b2b2fc8ea43481b5/FLAGb73645e30 [2018-11-28 19:35:19,840 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 19:35:19,841 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-atomic/peterson_true-unreach-call.i [2018-11-28 19:35:19,855 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b82f12e79/a6ec35cdefb948f6b2b2fc8ea43481b5/FLAGb73645e30 [2018-11-28 19:35:20,094 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b82f12e79/a6ec35cdefb948f6b2b2fc8ea43481b5 [2018-11-28 19:35:20,097 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 19:35:20,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 19:35:20,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 19:35:20,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 19:35:20,104 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 19:35:20,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:35:20" (1/1) ... [2018-11-28 19:35:20,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@787a80ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20, skipping insertion in model container [2018-11-28 19:35:20,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:35:20" (1/1) ... [2018-11-28 19:35:20,118 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 19:35:20,170 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 19:35:20,593 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 19:35:20,614 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 19:35:20,682 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 19:35:20,827 INFO L195 MainTranslator]: Completed translation [2018-11-28 19:35:20,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20 WrapperNode [2018-11-28 19:35:20,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 19:35:20,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 19:35:20,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 19:35:20,829 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 19:35:20,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20" (1/1) ... [2018-11-28 19:35:20,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20" (1/1) ... [2018-11-28 19:35:20,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 19:35:20,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 19:35:20,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 19:35:20,883 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 19:35:20,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20" (1/1) ... [2018-11-28 19:35:20,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20" (1/1) ... [2018-11-28 19:35:20,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20" (1/1) ... [2018-11-28 19:35:20,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20" (1/1) ... [2018-11-28 19:35:20,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20" (1/1) ... [2018-11-28 19:35:20,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20" (1/1) ... [2018-11-28 19:35:20,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20" (1/1) ... [2018-11-28 19:35:20,922 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 19:35:20,922 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 19:35:20,922 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 19:35:20,922 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 19:35:20,923 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20" (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 19:35:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 19:35:20,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 19:35:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2018-11-28 19:35:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2018-11-28 19:35:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-28 19:35:20,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-28 19:35:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 19:35:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 19:35:20,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 19:35:20,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 19:35:20,980 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 19:35:21,482 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 19:35:21,482 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 19:35:21,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:21 BoogieIcfgContainer [2018-11-28 19:35:21,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 19:35:21,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 19:35:21,484 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 19:35:21,487 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 19:35:21,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:35:20" (1/3) ... [2018-11-28 19:35:21,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54805cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:35:21, skipping insertion in model container [2018-11-28 19:35:21,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:35:20" (2/3) ... [2018-11-28 19:35:21,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54805cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:35:21, skipping insertion in model container [2018-11-28 19:35:21,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:21" (3/3) ... [2018-11-28 19:35:21,491 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson_true-unreach-call.i [2018-11-28 19:35:21,524 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,524 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,524 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,525 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr2_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,525 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,525 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,527 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,529 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,529 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,529 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,530 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,530 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 19:35:21,577 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 19:35:21,577 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 19:35:21,585 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 19:35:21,602 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 19:35:21,629 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 19:35:21,629 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 19:35:21,629 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 19:35:21,630 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 19:35:21,630 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 19:35:21,630 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 19:35:21,630 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 19:35:21,630 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 19:35:21,630 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 19:35:21,639 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 54places, 59 transitions [2018-11-28 19:35:21,682 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 561 states. [2018-11-28 19:35:21,692 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states. [2018-11-28 19:35:21,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 19:35:21,704 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 19:35:21,705 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 19:35:21,709 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 19:35:21,714 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 19:35:21,714 INFO L82 PathProgramCache]: Analyzing trace with hash 1235087554, now seen corresponding path program 1 times [2018-11-28 19:35:21,716 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 19:35:21,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 19:35:21,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 19:35:21,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 19:35:21,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 19:35:21,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 19:35:21,892 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 19:35:21,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 19:35:21,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 19:35:21,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 19:35:21,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 19:35:21,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 19:35:21,920 INFO L87 Difference]: Start difference. First operand 561 states. Second operand 2 states. [2018-11-28 19:35:21,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 19:35:21,967 INFO L93 Difference]: Finished difference Result 561 states and 1390 transitions. [2018-11-28 19:35:21,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 19:35:21,969 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-28 19:35:21,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 19:35:21,993 INFO L225 Difference]: With dead ends: 561 [2018-11-28 19:35:21,994 INFO L226 Difference]: Without dead ends: 480 [2018-11-28 19:35:21,995 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 19:35:22,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2018-11-28 19:35:22,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2018-11-28 19:35:22,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2018-11-28 19:35:22,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 1204 transitions. [2018-11-28 19:35:22,090 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 1204 transitions. Word has length 19 [2018-11-28 19:35:22,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 19:35:22,091 INFO L480 AbstractCegarLoop]: Abstraction has 480 states and 1204 transitions. [2018-11-28 19:35:22,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 19:35:22,091 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 1204 transitions. [2018-11-28 19:35:22,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-28 19:35:22,095 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 19:35:22,095 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 19:35:22,095 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 19:35:22,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 19:35:22,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1235117345, now seen corresponding path program 1 times [2018-11-28 19:35:22,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 19:35:22,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 19:35:22,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 19:35:22,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 19:35:22,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 19:35:22,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 19:35:22,194 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 19:35:22,196 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 19:35:22,196 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 19:35:22,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 19:35:22,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 19:35:22,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 19:35:22,199 INFO L87 Difference]: Start difference. First operand 480 states and 1204 transitions. Second operand 3 states. [2018-11-28 19:35:22,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 19:35:22,282 INFO L93 Difference]: Finished difference Result 513 states and 1237 transitions. [2018-11-28 19:35:22,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 19:35:22,284 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-28 19:35:22,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 19:35:22,292 INFO L225 Difference]: With dead ends: 513 [2018-11-28 19:35:22,292 INFO L226 Difference]: Without dead ends: 423 [2018-11-28 19:35:22,293 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 19:35:22,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2018-11-28 19:35:22,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 378. [2018-11-28 19:35:22,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2018-11-28 19:35:22,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 922 transitions. [2018-11-28 19:35:22,341 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 922 transitions. Word has length 19 [2018-11-28 19:35:22,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 19:35:22,341 INFO L480 AbstractCegarLoop]: Abstraction has 378 states and 922 transitions. [2018-11-28 19:35:22,341 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 19:35:22,341 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 922 transitions. [2018-11-28 19:35:22,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 19:35:22,343 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 19:35:22,343 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] [2018-11-28 19:35:22,344 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 19:35:22,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 19:35:22,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1862669806, now seen corresponding path program 1 times [2018-11-28 19:35:22,344 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 19:35:22,345 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 19:35:22,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 19:35:22,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 19:35:22,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 19:35:22,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 19:35:22,397 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 19:35:22,397 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 19:35:22,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 19:35:22,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 19:35:22,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 19:35:22,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 19:35:22,398 INFO L87 Difference]: Start difference. First operand 378 states and 922 transitions. Second operand 3 states. [2018-11-28 19:35:22,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 19:35:22,496 INFO L93 Difference]: Finished difference Result 345 states and 805 transitions. [2018-11-28 19:35:22,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 19:35:22,497 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-11-28 19:35:22,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 19:35:22,499 INFO L225 Difference]: With dead ends: 345 [2018-11-28 19:35:22,500 INFO L226 Difference]: Without dead ends: 243 [2018-11-28 19:35:22,500 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 19:35:22,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2018-11-28 19:35:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2018-11-28 19:35:22,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2018-11-28 19:35:22,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 556 transitions. [2018-11-28 19:35:22,511 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 556 transitions. Word has length 22 [2018-11-28 19:35:22,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 19:35:22,512 INFO L480 AbstractCegarLoop]: Abstraction has 243 states and 556 transitions. [2018-11-28 19:35:22,512 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 19:35:22,512 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 556 transitions. [2018-11-28 19:35:22,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 19:35:22,514 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 19:35:22,515 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 19:35:22,515 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 19:35:22,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 19:35:22,515 INFO L82 PathProgramCache]: Analyzing trace with hash 352522995, now seen corresponding path program 1 times [2018-11-28 19:35:22,516 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 19:35:22,516 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 19:35:22,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 19:35:22,521 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 19:35:22,521 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 19:35:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 19:35:22,607 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 19:35:22,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 19:35:22,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 19:35:22,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 19:35:22,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 19:35:22,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 19:35:22,609 INFO L87 Difference]: Start difference. First operand 243 states and 556 transitions. Second operand 4 states. [2018-11-28 19:35:22,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 19:35:22,710 INFO L93 Difference]: Finished difference Result 264 states and 607 transitions. [2018-11-28 19:35:22,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 19:35:22,710 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-11-28 19:35:22,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 19:35:22,712 INFO L225 Difference]: With dead ends: 264 [2018-11-28 19:35:22,713 INFO L226 Difference]: Without dead ends: 228 [2018-11-28 19:35:22,713 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 19:35:22,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2018-11-28 19:35:22,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2018-11-28 19:35:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2018-11-28 19:35:22,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 496 transitions. [2018-11-28 19:35:22,721 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 496 transitions. Word has length 27 [2018-11-28 19:35:22,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 19:35:22,722 INFO L480 AbstractCegarLoop]: Abstraction has 228 states and 496 transitions. [2018-11-28 19:35:22,722 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 19:35:22,722 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 496 transitions. [2018-11-28 19:35:22,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 19:35:22,724 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 19:35:22,724 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 19:35:22,724 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 19:35:22,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 19:35:22,725 INFO L82 PathProgramCache]: Analyzing trace with hash 2145141981, now seen corresponding path program 1 times [2018-11-28 19:35:22,725 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 19:35:22,725 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 19:35:22,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 19:35:22,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 19:35:22,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 19:35:22,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 19:35:22,832 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 19:35:22,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 19:35:22,832 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 19:35:22,833 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 19:35:22,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 19:35:22,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 19:35:22,834 INFO L87 Difference]: Start difference. First operand 228 states and 496 transitions. Second operand 4 states. [2018-11-28 19:35:22,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 19:35:22,956 INFO L93 Difference]: Finished difference Result 105 states and 234 transitions. [2018-11-28 19:35:22,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 19:35:22,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 27 [2018-11-28 19:35:22,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 19:35:22,958 INFO L225 Difference]: With dead ends: 105 [2018-11-28 19:35:22,959 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 19:35:22,959 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 19:35:22,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 19:35:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 19:35:22,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 19:35:22,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 19:35:22,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-11-28 19:35:22,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 19:35:22,961 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 19:35:22,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 19:35:22,962 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 19:35:22,962 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 19:35:22,966 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 19:35:22,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:35:22 BasicIcfg [2018-11-28 19:35:22,969 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 19:35:22,969 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 19:35:22,969 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 19:35:22,976 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 19:35:22,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:35:21" (3/4) ... [2018-11-28 19:35:22,982 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 19:35:22,989 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2018-11-28 19:35:22,990 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-11-28 19:35:22,994 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-28 19:35:22,994 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 19:35:23,035 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 19:35:23,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 19:35:23,036 INFO L168 Benchmark]: Toolchain (without parser) took 2938.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -60.8 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. [2018-11-28 19:35:23,039 INFO L168 Benchmark]: CDTParser took 0.17 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 19:35:23,039 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. [2018-11-28 19:35:23,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.27 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 19:35:23,041 INFO L168 Benchmark]: Boogie Preprocessor took 39.35 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 19:35:23,041 INFO L168 Benchmark]: RCFGBuilder took 560.63 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-11-28 19:35:23,042 INFO L168 Benchmark]: TraceAbstraction took 1485.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. [2018-11-28 19:35:23,043 INFO L168 Benchmark]: Witness Printer took 65.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-28 19:35:23,048 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 728.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -173.7 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 53.27 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 39.35 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 560.63 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: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1485.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 74.5 MB). Peak memory consumption was 74.5 MB. Max. memory is 11.5 GB. * Witness Printer took 65.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 652]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 643]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 652]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 643]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 78 locations, 4 error locations. SAFE Result, 1.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 261 SDtfs, 100 SDslu, 130 SDs, 0 SdLazy, 33 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=561occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 45 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 3403 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...