./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-ext/19_time_var_mutex_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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-ext/19_time_var_mutex_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 04cb1127e87d8c117db54fcde1105aef4f839958 .......................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 17:31:06,004 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 17:31:06,006 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 17:31:06,018 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 17:31:06,018 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 17:31:06,020 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 17:31:06,021 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 17:31:06,023 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 17:31:06,025 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 17:31:06,026 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 17:31:06,027 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 17:31:06,028 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 17:31:06,029 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 17:31:06,030 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 17:31:06,032 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 17:31:06,033 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 17:31:06,033 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 17:31:06,036 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 17:31:06,038 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 17:31:06,040 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 17:31:06,042 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 17:31:06,043 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 17:31:06,046 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 17:31:06,046 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 17:31:06,047 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 17:31:06,048 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 17:31:06,049 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 17:31:06,051 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 17:31:06,051 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 17:31:06,053 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 17:31:06,054 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 17:31:06,054 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 17:31:06,055 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 17:31:06,055 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 17:31:06,057 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 17:31:06,057 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 17:31:06,058 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 17:31:06,074 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 17:31:06,074 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 17:31:06,075 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 17:31:06,076 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 17:31:06,076 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 17:31:06,076 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 17:31:06,076 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 17:31:06,076 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 17:31:06,076 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 17:31:06,077 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 17:31:06,078 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 17:31:06,078 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 17:31:06,078 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 17:31:06,078 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 17:31:06,078 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 17:31:06,079 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 17:31:06,079 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 17:31:06,079 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 17:31:06,079 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 17:31:06,079 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 17:31:06,079 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 17:31:06,081 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 17:31:06,081 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 17:31:06,081 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 17:31:06,082 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 17:31:06,082 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 17:31:06,082 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 17:31:06,083 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 17:31:06,083 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 -> 04cb1127e87d8c117db54fcde1105aef4f839958 [2018-12-31 17:31:06,120 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 17:31:06,140 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 17:31:06,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 17:31:06,150 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 17:31:06,150 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 17:31:06,152 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-ext/19_time_var_mutex_true-unreach-call.i [2018-12-31 17:31:06,230 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a8898f8/eb00ac4ed3974603912ed9c2b28c89c5/FLAG2f4805dad [2018-12-31 17:31:06,782 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 17:31:06,783 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-ext/19_time_var_mutex_true-unreach-call.i [2018-12-31 17:31:06,802 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a8898f8/eb00ac4ed3974603912ed9c2b28c89c5/FLAG2f4805dad [2018-12-31 17:31:07,000 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2a8898f8/eb00ac4ed3974603912ed9c2b28c89c5 [2018-12-31 17:31:07,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 17:31:07,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 17:31:07,011 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 17:31:07,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 17:31:07,015 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 17:31:07,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:31:07" (1/1) ... [2018-12-31 17:31:07,020 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@133182c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07, skipping insertion in model container [2018-12-31 17:31:07,020 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:31:07" (1/1) ... [2018-12-31 17:31:07,030 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 17:31:07,084 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 17:31:07,484 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 17:31:07,503 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 17:31:07,663 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 17:31:07,743 INFO L195 MainTranslator]: Completed translation [2018-12-31 17:31:07,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07 WrapperNode [2018-12-31 17:31:07,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 17:31:07,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 17:31:07,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 17:31:07,745 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 17:31:07,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07" (1/1) ... [2018-12-31 17:31:07,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07" (1/1) ... [2018-12-31 17:31:07,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 17:31:07,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 17:31:07,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 17:31:07,818 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 17:31:07,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07" (1/1) ... [2018-12-31 17:31:07,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07" (1/1) ... [2018-12-31 17:31:07,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07" (1/1) ... [2018-12-31 17:31:07,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07" (1/1) ... [2018-12-31 17:31:07,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07" (1/1) ... [2018-12-31 17:31:07,866 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07" (1/1) ... [2018-12-31 17:31:07,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07" (1/1) ... [2018-12-31 17:31:07,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 17:31:07,878 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 17:31:07,878 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 17:31:07,878 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 17:31:07,879 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07" (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 [2018-12-31 17:31:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 17:31:07,958 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-12-31 17:31:07,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-12-31 17:31:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-31 17:31:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 17:31:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 17:31:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-31 17:31:07,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 17:31:07,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 17:31:07,961 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-12-31 17:31:08,095 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-12-31 17:31:08,097 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel#2 [2018-12-31 17:31:08,098 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-12-31 17:31:08,100 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel#2 [2018-12-31 17:31:08,321 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_acquire_returnLabel [2018-12-31 17:31:08,323 INFO L1421 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_returnLabel [2018-12-31 17:31:08,444 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 17:31:08,445 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 17:31:08,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:31:08 BoogieIcfgContainer [2018-12-31 17:31:08,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 17:31:08,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 17:31:08,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 17:31:08,450 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 17:31:08,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 05:31:07" (1/3) ... [2018-12-31 17:31:08,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c590916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:31:08, skipping insertion in model container [2018-12-31 17:31:08,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:31:07" (2/3) ... [2018-12-31 17:31:08,452 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c590916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:31:08, skipping insertion in model container [2018-12-31 17:31:08,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:31:08" (3/3) ... [2018-12-31 17:31:08,453 INFO L112 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex_true-unreach-call.i [2018-12-31 17:31:08,503 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,504 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,504 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,504 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,504 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,505 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,505 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,505 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,505 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,505 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,505 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,505 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,506 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,506 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,506 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,506 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,507 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,507 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,507 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,507 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,510 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,512 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,512 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,512 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1___VERIFIER_atomic_release_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,513 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,513 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 17:31:08,528 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-12-31 17:31:08,529 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 17:31:08,537 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-12-31 17:31:08,552 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-12-31 17:31:08,579 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 17:31:08,579 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 17:31:08,580 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 17:31:08,580 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 17:31:08,580 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 17:31:08,580 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 17:31:08,580 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 17:31:08,580 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 17:31:08,581 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 17:31:08,592 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46places, 48 transitions [2018-12-31 17:31:08,624 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 254 states. [2018-12-31 17:31:08,626 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2018-12-31 17:31:08,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-31 17:31:08,636 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 17:31:08,637 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 17:31:08,639 INFO L423 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 17:31:08,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 17:31:08,646 INFO L82 PathProgramCache]: Analyzing trace with hash -93902896, now seen corresponding path program 1 times [2018-12-31 17:31:08,648 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 17:31:08,649 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 17:31:08,720 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:31:08,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 17:31:08,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:31:08,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 17:31:08,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 17:31:08,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 17:31:08,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 17:31:08,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 17:31:08,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 17:31:08,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 17:31:08,922 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2018-12-31 17:31:08,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 17:31:08,988 INFO L93 Difference]: Finished difference Result 254 states and 474 transitions. [2018-12-31 17:31:08,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 17:31:08,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-12-31 17:31:08,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 17:31:09,007 INFO L225 Difference]: With dead ends: 254 [2018-12-31 17:31:09,007 INFO L226 Difference]: Without dead ends: 214 [2018-12-31 17:31:09,010 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 [2018-12-31 17:31:09,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2018-12-31 17:31:09,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2018-12-31 17:31:09,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2018-12-31 17:31:09,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 390 transitions. [2018-12-31 17:31:09,073 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 390 transitions. Word has length 19 [2018-12-31 17:31:09,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 17:31:09,074 INFO L480 AbstractCegarLoop]: Abstraction has 214 states and 390 transitions. [2018-12-31 17:31:09,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 17:31:09,075 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 390 transitions. [2018-12-31 17:31:09,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-31 17:31:09,076 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 17:31:09,076 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] [2018-12-31 17:31:09,076 INFO L423 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 17:31:09,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 17:31:09,078 INFO L82 PathProgramCache]: Analyzing trace with hash -75952209, now seen corresponding path program 1 times [2018-12-31 17:31:09,078 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 17:31:09,078 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 17:31:09,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:31:09,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 17:31:09,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:31:09,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 17:31:09,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 17:31:09,154 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 17:31:09,154 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 17:31:09,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 17:31:09,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 17:31:09,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 17:31:09,158 INFO L87 Difference]: Start difference. First operand 214 states and 390 transitions. Second operand 3 states. [2018-12-31 17:31:09,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 17:31:09,288 INFO L93 Difference]: Finished difference Result 225 states and 391 transitions. [2018-12-31 17:31:09,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 17:31:09,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2018-12-31 17:31:09,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 17:31:09,299 INFO L225 Difference]: With dead ends: 225 [2018-12-31 17:31:09,299 INFO L226 Difference]: Without dead ends: 165 [2018-12-31 17:31:09,300 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 [2018-12-31 17:31:09,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-12-31 17:31:09,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 153. [2018-12-31 17:31:09,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2018-12-31 17:31:09,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 259 transitions. [2018-12-31 17:31:09,315 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 259 transitions. Word has length 21 [2018-12-31 17:31:09,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 17:31:09,315 INFO L480 AbstractCegarLoop]: Abstraction has 153 states and 259 transitions. [2018-12-31 17:31:09,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 17:31:09,316 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 259 transitions. [2018-12-31 17:31:09,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-31 17:31:09,317 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 17:31:09,317 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] [2018-12-31 17:31:09,318 INFO L423 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 17:31:09,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 17:31:09,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1922359822, now seen corresponding path program 1 times [2018-12-31 17:31:09,318 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 17:31:09,319 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 17:31:09,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:31:09,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 17:31:09,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:31:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 17:31:09,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 17:31:09,404 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 17:31:09,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 17:31:09,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 17:31:09,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 17:31:09,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 17:31:09,405 INFO L87 Difference]: Start difference. First operand 153 states and 259 transitions. Second operand 3 states. [2018-12-31 17:31:09,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 17:31:09,451 INFO L93 Difference]: Finished difference Result 141 states and 229 transitions. [2018-12-31 17:31:09,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 17:31:09,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-12-31 17:31:09,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 17:31:09,454 INFO L225 Difference]: With dead ends: 141 [2018-12-31 17:31:09,455 INFO L226 Difference]: Without dead ends: 109 [2018-12-31 17:31:09,455 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 [2018-12-31 17:31:09,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2018-12-31 17:31:09,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2018-12-31 17:31:09,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2018-12-31 17:31:09,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 170 transitions. [2018-12-31 17:31:09,465 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 170 transitions. Word has length 23 [2018-12-31 17:31:09,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 17:31:09,466 INFO L480 AbstractCegarLoop]: Abstraction has 109 states and 170 transitions. [2018-12-31 17:31:09,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 17:31:09,466 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 170 transitions. [2018-12-31 17:31:09,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-31 17:31:09,469 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 17:31:09,469 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 17:31:09,469 INFO L423 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 17:31:09,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 17:31:09,473 INFO L82 PathProgramCache]: Analyzing trace with hash 487444036, now seen corresponding path program 1 times [2018-12-31 17:31:09,473 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 17:31:09,473 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 17:31:09,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:31:09,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 17:31:09,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:31:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 17:31:09,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 17:31:09,646 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 17:31:09,646 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 17:31:09,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 17:31:09,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 17:31:09,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 17:31:09,647 INFO L87 Difference]: Start difference. First operand 109 states and 170 transitions. Second operand 3 states. [2018-12-31 17:31:09,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 17:31:09,674 INFO L93 Difference]: Finished difference Result 109 states and 167 transitions. [2018-12-31 17:31:09,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 17:31:09,674 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-12-31 17:31:09,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 17:31:09,675 INFO L225 Difference]: With dead ends: 109 [2018-12-31 17:31:09,676 INFO L226 Difference]: Without dead ends: 91 [2018-12-31 17:31:09,676 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 [2018-12-31 17:31:09,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-12-31 17:31:09,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2018-12-31 17:31:09,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2018-12-31 17:31:09,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 134 transitions. [2018-12-31 17:31:09,683 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 134 transitions. Word has length 28 [2018-12-31 17:31:09,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 17:31:09,683 INFO L480 AbstractCegarLoop]: Abstraction has 91 states and 134 transitions. [2018-12-31 17:31:09,683 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 17:31:09,683 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 134 transitions. [2018-12-31 17:31:09,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-12-31 17:31:09,684 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 17:31:09,685 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 17:31:09,685 INFO L423 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 17:31:09,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 17:31:09,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1382184874, now seen corresponding path program 1 times [2018-12-31 17:31:09,686 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 17:31:09,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 17:31:09,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:31:09,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 17:31:09,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 17:31:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 17:31:09,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 17:31:09,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 17:31:09,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 17:31:09,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 17:31:09,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 17:31:09,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-31 17:31:09,784 INFO L87 Difference]: Start difference. First operand 91 states and 134 transitions. Second operand 4 states. [2018-12-31 17:31:09,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 17:31:09,892 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2018-12-31 17:31:09,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 17:31:09,893 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 28 [2018-12-31 17:31:09,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 17:31:09,893 INFO L225 Difference]: With dead ends: 35 [2018-12-31 17:31:09,893 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 17:31:09,894 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 17:31:09,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 17:31:09,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 17:31:09,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 17:31:09,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 17:31:09,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2018-12-31 17:31:09,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 17:31:09,897 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 17:31:09,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 17:31:09,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 17:31:09,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 17:31:09,901 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-12-31 17:31:09,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 05:31:09 BasicIcfg [2018-12-31 17:31:09,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 17:31:09,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 17:31:09,903 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 17:31:09,904 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 17:31:09,904 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:31:08" (3/4) ... [2018-12-31 17:31:09,908 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 17:31:09,916 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-12-31 17:31:09,921 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-31 17:31:09,922 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-31 17:31:09,971 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 17:31:09,972 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 17:31:09,973 INFO L168 Benchmark]: Toolchain (without parser) took 2965.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 942.0 MB in the beginning and 1.0 GB in the end (delta: -73.6 MB). Peak memory consumption was 73.7 MB. Max. memory is 11.5 GB. [2018-12-31 17:31:09,974 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-12-31 17:31:09,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 733.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -166.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-12-31 17:31:09,976 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.63 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. [2018-12-31 17:31:09,976 INFO L168 Benchmark]: Boogie Preprocessor took 59.96 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. [2018-12-31 17:31:09,977 INFO L168 Benchmark]: RCFGBuilder took 567.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-12-31 17:31:09,977 INFO L168 Benchmark]: TraceAbstraction took 1456.55 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: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. [2018-12-31 17:31:09,978 INFO L168 Benchmark]: Witness Printer took 68.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 17:31:09,982 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 733.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -166.2 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 59.96 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 567.57 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1456.55 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: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. * Witness Printer took 68.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 661]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 670]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 661]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 58 locations, 3 error locations. SAFE Result, 1.3s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 228 SDtfs, 120 SDslu, 118 SDs, 0 SdLazy, 23 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred 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: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 4442 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...