./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-atomic/dekker_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f 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/dekker_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 6acd1b4df42e10450e7d05fa6ddd1043597a40b7 ..................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 22:24:55,936 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 22:24:55,937 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 22:24:55,949 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 22:24:55,949 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 22:24:55,951 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 22:24:55,952 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 22:24:55,954 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 22:24:55,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 22:24:55,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 22:24:55,958 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 22:24:55,958 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 22:24:55,959 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 22:24:55,960 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 22:24:55,962 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 22:24:55,963 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 22:24:55,963 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 22:24:55,966 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 22:24:55,968 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 22:24:55,969 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 22:24:55,971 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 22:24:55,972 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 22:24:55,975 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 22:24:55,975 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 22:24:55,975 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 22:24:55,977 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 22:24:55,978 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 22:24:55,979 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 22:24:55,980 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 22:24:55,981 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 22:24:55,981 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 22:24:55,982 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 22:24:55,982 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 22:24:55,982 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 22:24:55,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 22:24:55,985 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 22:24:55,985 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 22:24:56,000 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 22:24:56,000 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 22:24:56,002 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 22:24:56,002 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 22:24:56,002 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 22:24:56,003 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 22:24:56,003 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 22:24:56,003 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 22:24:56,003 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 22:24:56,003 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 22:24:56,004 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 22:24:56,004 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 22:24:56,004 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 22:24:56,004 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 22:24:56,004 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 22:24:56,004 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 22:24:56,005 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 22:24:56,006 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 22:24:56,007 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 22:24:56,007 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 22:24:56,007 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 22:24:56,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 22:24:56,007 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 22:24:56,007 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 22:24:56,009 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 22:24:56,009 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 22:24:56,009 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 22:24:56,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 22:24:56,009 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 -> 6acd1b4df42e10450e7d05fa6ddd1043597a40b7 [2019-01-12 22:24:56,045 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 22:24:56,058 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 22:24:56,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 22:24:56,063 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 22:24:56,064 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 22:24:56,065 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-atomic/dekker_true-unreach-call.i [2019-01-12 22:24:56,126 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82aa3603f/1eeed48cc8d34ac49b390d513f423874/FLAG8668ce0cd [2019-01-12 22:24:56,671 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 22:24:56,674 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-atomic/dekker_true-unreach-call.i [2019-01-12 22:24:56,696 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82aa3603f/1eeed48cc8d34ac49b390d513f423874/FLAG8668ce0cd [2019-01-12 22:24:56,961 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82aa3603f/1eeed48cc8d34ac49b390d513f423874 [2019-01-12 22:24:56,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 22:24:56,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 22:24:56,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 22:24:56,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 22:24:56,981 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 22:24:56,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 10:24:56" (1/1) ... [2019-01-12 22:24:56,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ae2106 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:56, skipping insertion in model container [2019-01-12 22:24:56,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 10:24:56" (1/1) ... [2019-01-12 22:24:56,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 22:24:57,056 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 22:24:57,469 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 22:24:57,492 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 22:24:57,569 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 22:24:57,717 INFO L195 MainTranslator]: Completed translation [2019-01-12 22:24:57,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57 WrapperNode [2019-01-12 22:24:57,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 22:24:57,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 22:24:57,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 22:24:57,719 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 22:24:57,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57" (1/1) ... [2019-01-12 22:24:57,754 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57" (1/1) ... [2019-01-12 22:24:57,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 22:24:57,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 22:24:57,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 22:24:57,776 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 22:24:57,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57" (1/1) ... [2019-01-12 22:24:57,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57" (1/1) ... [2019-01-12 22:24:57,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57" (1/1) ... [2019-01-12 22:24:57,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57" (1/1) ... [2019-01-12 22:24:57,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57" (1/1) ... [2019-01-12 22:24:57,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57" (1/1) ... [2019-01-12 22:24:57,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57" (1/1) ... [2019-01-12 22:24:57,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 22:24:57,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 22:24:57,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 22:24:57,804 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 22:24:57,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57" (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 [2019-01-12 22:24:57,873 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-12 22:24:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-01-12 22:24:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-01-12 22:24:57,874 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-01-12 22:24:57,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-01-12 22:24:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-12 22:24:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 22:24:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 22:24:57,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 22:24:57,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 22:24:57,877 WARN L204 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-12 22:24:58,378 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 22:24:58,378 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-12 22:24:58,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:24:58 BoogieIcfgContainer [2019-01-12 22:24:58,379 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 22:24:58,380 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 22:24:58,380 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 22:24:58,383 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 22:24:58,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 10:24:56" (1/3) ... [2019-01-12 22:24:58,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27248cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 10:24:58, skipping insertion in model container [2019-01-12 22:24:58,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:24:57" (2/3) ... [2019-01-12 22:24:58,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27248cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 10:24:58, skipping insertion in model container [2019-01-12 22:24:58,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:24:58" (3/3) ... [2019-01-12 22:24:58,387 INFO L112 eAbstractionObserver]: Analyzing ICFG dekker_true-unreach-call.i [2019-01-12 22:24:58,417 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,418 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,418 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,418 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr2_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,419 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,419 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,420 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,420 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,420 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,420 WARN L317 ript$VariableManager]: TermVariabe Thread1_thr1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,421 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,421 WARN L317 ript$VariableManager]: TermVariabe |Thread1_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:24:58,456 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-12 22:24:58,456 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 22:24:58,464 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-01-12 22:24:58,480 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-01-12 22:24:58,502 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 22:24:58,503 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 22:24:58,503 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 22:24:58,503 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 22:24:58,504 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 22:24:58,504 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 22:24:58,504 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 22:24:58,504 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 22:24:58,504 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 22:24:58,513 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63places, 74 transitions [2019-01-12 22:24:58,569 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 934 states. [2019-01-12 22:24:58,572 INFO L276 IsEmpty]: Start isEmpty. Operand 934 states. [2019-01-12 22:24:58,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-12 22:24:58,585 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:24:58,586 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 22:24:58,588 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:24:58,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:24:58,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1525123433, now seen corresponding path program 1 times [2019-01-12 22:24:58,596 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:24:58,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:24:58,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:24:58,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:24:58,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:24:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 22:24:58,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 22:24:58,817 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 22:24:58,818 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 22:24:58,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 22:24:58,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 22:24:58,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 22:24:58,835 INFO L87 Difference]: Start difference. First operand 934 states. Second operand 3 states. [2019-01-12 22:24:58,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 22:24:58,932 INFO L93 Difference]: Finished difference Result 1075 states and 2820 transitions. [2019-01-12 22:24:58,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 22:24:58,935 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-01-12 22:24:58,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 22:24:58,962 INFO L225 Difference]: With dead ends: 1075 [2019-01-12 22:24:58,962 INFO L226 Difference]: Without dead ends: 685 [2019-01-12 22:24:58,966 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 [2019-01-12 22:24:58,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2019-01-12 22:24:59,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 631. [2019-01-12 22:24:59,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 631 states. [2019-01-12 22:24:59,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 631 states and 1740 transitions. [2019-01-12 22:24:59,075 INFO L78 Accepts]: Start accepts. Automaton has 631 states and 1740 transitions. Word has length 19 [2019-01-12 22:24:59,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 22:24:59,078 INFO L480 AbstractCegarLoop]: Abstraction has 631 states and 1740 transitions. [2019-01-12 22:24:59,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 22:24:59,078 INFO L276 IsEmpty]: Start isEmpty. Operand 631 states and 1740 transitions. [2019-01-12 22:24:59,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-01-12 22:24:59,081 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:24:59,081 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] [2019-01-12 22:24:59,081 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:24:59,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:24:59,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1156667429, now seen corresponding path program 1 times [2019-01-12 22:24:59,082 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:24:59,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:24:59,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:24:59,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:24:59,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:24:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 22:24:59,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 22:24:59,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 22:24:59,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 22:24:59,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 22:24:59,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 22:24:59,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 22:24:59,197 INFO L87 Difference]: Start difference. First operand 631 states and 1740 transitions. Second operand 3 states. [2019-01-12 22:24:59,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 22:24:59,286 INFO L93 Difference]: Finished difference Result 583 states and 1568 transitions. [2019-01-12 22:24:59,288 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 22:24:59,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-01-12 22:24:59,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 22:24:59,294 INFO L225 Difference]: With dead ends: 583 [2019-01-12 22:24:59,295 INFO L226 Difference]: Without dead ends: 406 [2019-01-12 22:24:59,296 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 [2019-01-12 22:24:59,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2019-01-12 22:24:59,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2019-01-12 22:24:59,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2019-01-12 22:24:59,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 1091 transitions. [2019-01-12 22:24:59,342 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 1091 transitions. Word has length 22 [2019-01-12 22:24:59,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 22:24:59,344 INFO L480 AbstractCegarLoop]: Abstraction has 406 states and 1091 transitions. [2019-01-12 22:24:59,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 22:24:59,344 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 1091 transitions. [2019-01-12 22:24:59,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-01-12 22:24:59,351 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:24:59,352 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] [2019-01-12 22:24:59,352 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:24:59,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:24:59,352 INFO L82 PathProgramCache]: Analyzing trace with hash 196783262, now seen corresponding path program 1 times [2019-01-12 22:24:59,353 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:24:59,353 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:24:59,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:24:59,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:24:59,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:24:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 22:24:59,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 22:24:59,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 22:24:59,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 22:24:59,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 22:24:59,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 22:24:59,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 22:24:59,479 INFO L87 Difference]: Start difference. First operand 406 states and 1091 transitions. Second operand 3 states. [2019-01-12 22:24:59,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 22:24:59,585 INFO L93 Difference]: Finished difference Result 406 states and 1076 transitions. [2019-01-12 22:24:59,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 22:24:59,586 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-01-12 22:24:59,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 22:24:59,589 INFO L225 Difference]: With dead ends: 406 [2019-01-12 22:24:59,590 INFO L226 Difference]: Without dead ends: 364 [2019-01-12 22:24:59,590 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 [2019-01-12 22:24:59,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-01-12 22:24:59,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2019-01-12 22:24:59,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2019-01-12 22:24:59,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 952 transitions. [2019-01-12 22:24:59,604 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 952 transitions. Word has length 26 [2019-01-12 22:24:59,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 22:24:59,605 INFO L480 AbstractCegarLoop]: Abstraction has 364 states and 952 transitions. [2019-01-12 22:24:59,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 22:24:59,605 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 952 transitions. [2019-01-12 22:24:59,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-01-12 22:24:59,608 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:24:59,608 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] [2019-01-12 22:24:59,608 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:24:59,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:24:59,609 INFO L82 PathProgramCache]: Analyzing trace with hash 404774520, now seen corresponding path program 1 times [2019-01-12 22:24:59,610 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:24:59,610 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:24:59,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:24:59,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:24:59,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:24:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 22:24:59,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 22:24:59,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 22:24:59,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 22:24:59,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 22:24:59,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 22:24:59,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 22:24:59,691 INFO L87 Difference]: Start difference. First operand 364 states and 952 transitions. Second operand 3 states. [2019-01-12 22:24:59,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 22:24:59,770 INFO L93 Difference]: Finished difference Result 229 states and 664 transitions. [2019-01-12 22:24:59,771 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 22:24:59,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2019-01-12 22:24:59,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 22:24:59,772 INFO L225 Difference]: With dead ends: 229 [2019-01-12 22:24:59,772 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 22:24:59,773 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 [2019-01-12 22:24:59,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 22:24:59,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 22:24:59,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 22:24:59,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 22:24:59,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2019-01-12 22:24:59,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 22:24:59,776 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 22:24:59,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 22:24:59,776 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 22:24:59,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 22:24:59,782 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-12 22:24:59,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 10:24:59 BasicIcfg [2019-01-12 22:24:59,786 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 22:24:59,787 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 22:24:59,787 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 22:24:59,787 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 22:24:59,788 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:24:58" (3/4) ... [2019-01-12 22:24:59,793 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 22:24:59,801 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2019-01-12 22:24:59,804 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-01-12 22:24:59,812 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-01-12 22:24:59,813 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-12 22:24:59,879 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 22:24:59,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 22:24:59,881 INFO L168 Benchmark]: Toolchain (without parser) took 2912.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 952.7 MB in the beginning and 1.0 GB in the end (delta: -66.8 MB). Peak memory consumption was 76.3 MB. Max. memory is 11.5 GB. [2019-01-12 22:24:59,891 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 22:24:59,891 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 11.5 GB. [2019-01-12 22:24:59,893 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-12 22:24:59,898 INFO L168 Benchmark]: Boogie Preprocessor took 27.08 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. [2019-01-12 22:24:59,898 INFO L168 Benchmark]: RCFGBuilder took 576.02 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. [2019-01-12 22:24:59,902 INFO L168 Benchmark]: TraceAbstraction took 1405.92 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: 73.2 MB). Peak memory consumption was 73.2 MB. Max. memory is 11.5 GB. [2019-01-12 22:24:59,905 INFO L168 Benchmark]: Witness Printer took 93.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-12 22:24:59,912 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 747.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 42.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 56.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.08 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 576.02 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: 24.4 MB). Peak memory consumption was 24.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1405.92 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: 73.2 MB). Peak memory consumption was 73.2 MB. Max. memory is 11.5 GB. * Witness Printer took 93.21 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 664]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 649]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 664]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 649]: 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, 95 locations, 4 error locations. SAFE Result, 1.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 273 SDtfs, 127 SDslu, 150 SDs, 0 SdLazy, 24 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=934occurred 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, 4 MinimizatonAttempts, 54 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 89 ConstructedInterpolants, 0 QuantifiedInterpolants, 2543 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...