./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe025_tso.oepc_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-wmm/safe025_tso.oepc_true-unreach-call.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 80e08f35f67fa18d6540da4359a8d5a10af9eaa2 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 00:57:57,905 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 00:57:57,908 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 00:57:57,931 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 00:57:57,932 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 00:57:57,934 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 00:57:57,935 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 00:57:57,939 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 00:57:57,942 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 00:57:57,943 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 00:57:57,945 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 00:57:57,945 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 00:57:57,946 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 00:57:57,947 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 00:57:57,949 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 00:57:57,950 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 00:57:57,951 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 00:57:57,953 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 00:57:57,955 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 00:57:57,957 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 00:57:57,959 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 00:57:57,960 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 00:57:57,963 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 00:57:57,963 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 00:57:57,964 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 00:57:57,965 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 00:57:57,966 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 00:57:57,967 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 00:57:57,969 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 00:57:57,970 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 00:57:57,970 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 00:57:57,971 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 00:57:57,972 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 00:57:57,972 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 00:57:57,973 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 00:57:57,974 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 00:57:57,975 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-01 00:57:57,990 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 00:57:57,991 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 00:57:57,992 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 00:57:57,992 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 00:57:57,993 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 00:57:57,993 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 00:57:57,993 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 00:57:57,993 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 00:57:57,993 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 00:57:57,994 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 00:57:57,994 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-01 00:57:57,994 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-01 00:57:57,994 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-01 00:57:57,994 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 00:57:57,994 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 00:57:57,995 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 00:57:57,996 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-01 00:57:57,996 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 00:57:57,997 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 00:57:57,997 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-01 00:57:57,997 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-01 00:57:57,997 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-01 00:57:57,998 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 00:57:57,998 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-01 00:57:57,998 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-01 00:57:57,998 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 00:57:57,998 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-01 00:57:57,998 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-01 00:57:57,999 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 -> 80e08f35f67fa18d6540da4359a8d5a10af9eaa2 [2019-01-01 00:57:58,049 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 00:57:58,063 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 00:57:58,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 00:57:58,069 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 00:57:58,069 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 00:57:58,070 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe025_tso.oepc_true-unreach-call.i [2019-01-01 00:57:58,132 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16539bba0/695567933c664f848706b359076f7699/FLAGff845b4f8 [2019-01-01 00:57:58,647 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 00:57:58,648 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe025_tso.oepc_true-unreach-call.i [2019-01-01 00:57:58,663 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16539bba0/695567933c664f848706b359076f7699/FLAGff845b4f8 [2019-01-01 00:57:58,937 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/16539bba0/695567933c664f848706b359076f7699 [2019-01-01 00:57:58,940 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 00:57:58,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 00:57:58,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 00:57:58,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 00:57:58,949 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 00:57:58,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:57:58" (1/1) ... [2019-01-01 00:57:58,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3277d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:58, skipping insertion in model container [2019-01-01 00:57:58,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 12:57:58" (1/1) ... [2019-01-01 00:57:58,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 00:57:59,015 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 00:57:59,510 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:57:59,533 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 00:57:59,716 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 00:57:59,818 INFO L195 MainTranslator]: Completed translation [2019-01-01 00:57:59,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59 WrapperNode [2019-01-01 00:57:59,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 00:57:59,820 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 00:57:59,820 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 00:57:59,820 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 00:57:59,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59" (1/1) ... [2019-01-01 00:57:59,848 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59" (1/1) ... [2019-01-01 00:57:59,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 00:57:59,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 00:57:59,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 00:57:59,878 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 00:57:59,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59" (1/1) ... [2019-01-01 00:57:59,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59" (1/1) ... [2019-01-01 00:57:59,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59" (1/1) ... [2019-01-01 00:57:59,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59" (1/1) ... [2019-01-01 00:57:59,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59" (1/1) ... [2019-01-01 00:57:59,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59" (1/1) ... [2019-01-01 00:57:59,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59" (1/1) ... [2019-01-01 00:57:59,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 00:57:59,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 00:57:59,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 00:57:59,912 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 00:57:59,918 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59" (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 [2019-01-01 00:57:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 00:57:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-01-01 00:57:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 00:57:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 00:57:59,997 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-01-01 00:57:59,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-01-01 00:57:59,998 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-01-01 00:57:59,998 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-01-01 00:58:00,002 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-01-01 00:58:00,002 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-01-01 00:58:00,002 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-01-01 00:58:00,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 00:58:00,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 00:58:00,004 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-01 00:58:00,460 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 00:58:00,461 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 00:58:00,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:58:00 BoogieIcfgContainer [2019-01-01 00:58:00,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 00:58:00,462 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-01 00:58:00,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-01 00:58:00,471 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-01 00:58:00,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.01 12:57:58" (1/3) ... [2019-01-01 00:58:00,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c16918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:58:00, skipping insertion in model container [2019-01-01 00:58:00,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 12:57:59" (2/3) ... [2019-01-01 00:58:00,473 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26c16918 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.01 12:58:00, skipping insertion in model container [2019-01-01 00:58:00,473 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:58:00" (3/3) ... [2019-01-01 00:58:00,475 INFO L112 eAbstractionObserver]: Analyzing ICFG safe025_tso.oepc_true-unreach-call.i [2019-01-01 00:58:00,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,512 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,512 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,513 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,513 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,514 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,514 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,514 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,514 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,515 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,515 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,515 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,515 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,515 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,516 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,516 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,516 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,516 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,517 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,517 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,517 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,517 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,517 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,517 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,518 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,518 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-01 00:58:00,543 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-01 00:58:00,543 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-01 00:58:00,551 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-01 00:58:00,565 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-01 00:58:00,591 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 00:58:00,592 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-01 00:58:00,592 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-01 00:58:00,592 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-01 00:58:00,593 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 00:58:00,593 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 00:58:00,593 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-01 00:58:00,593 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 00:58:00,593 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-01 00:58:00,603 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56places, 53 transitions [2019-01-01 00:58:00,735 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2385 states. [2019-01-01 00:58:00,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states. [2019-01-01 00:58:00,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-01-01 00:58:00,759 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:00,760 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:58:00,763 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:00,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:00,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1527644630, now seen corresponding path program 1 times [2019-01-01 00:58:00,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:00,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:00,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:00,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:00,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:01,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:01,194 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:01,194 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-01 00:58:01,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-01 00:58:01,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-01 00:58:01,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-01 00:58:01,215 INFO L87 Difference]: Start difference. First operand 2385 states. Second operand 4 states. [2019-01-01 00:58:01,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:01,423 INFO L93 Difference]: Finished difference Result 2493 states and 8069 transitions. [2019-01-01 00:58:01,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-01 00:58:01,425 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-01-01 00:58:01,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:01,471 INFO L225 Difference]: With dead ends: 2493 [2019-01-01 00:58:01,471 INFO L226 Difference]: Without dead ends: 1128 [2019-01-01 00:58:01,473 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:58:01,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1128 states. [2019-01-01 00:58:01,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1128 to 1128. [2019-01-01 00:58:01,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1128 states. [2019-01-01 00:58:01,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1128 states to 1128 states and 3558 transitions. [2019-01-01 00:58:01,641 INFO L78 Accepts]: Start accepts. Automaton has 1128 states and 3558 transitions. Word has length 30 [2019-01-01 00:58:01,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:01,642 INFO L480 AbstractCegarLoop]: Abstraction has 1128 states and 3558 transitions. [2019-01-01 00:58:01,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-01 00:58:01,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1128 states and 3558 transitions. [2019-01-01 00:58:01,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-01-01 00:58:01,652 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:01,652 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:58:01,652 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:01,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:01,653 INFO L82 PathProgramCache]: Analyzing trace with hash -1534799274, now seen corresponding path program 1 times [2019-01-01 00:58:01,653 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:01,654 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:01,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:01,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:01,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:01,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:01,893 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:01,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-01 00:58:01,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-01 00:58:01,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-01 00:58:01,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-01 00:58:01,896 INFO L87 Difference]: Start difference. First operand 1128 states and 3558 transitions. Second operand 5 states. [2019-01-01 00:58:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:02,370 INFO L93 Difference]: Finished difference Result 1168 states and 3552 transitions. [2019-01-01 00:58:02,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-01 00:58:02,371 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-01-01 00:58:02,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:02,381 INFO L225 Difference]: With dead ends: 1168 [2019-01-01 00:58:02,382 INFO L226 Difference]: Without dead ends: 1044 [2019-01-01 00:58:02,383 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:58:02,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1044 states. [2019-01-01 00:58:02,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1044 to 1044. [2019-01-01 00:58:02,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1044 states. [2019-01-01 00:58:02,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3243 transitions. [2019-01-01 00:58:02,426 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3243 transitions. Word has length 31 [2019-01-01 00:58:02,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:02,426 INFO L480 AbstractCegarLoop]: Abstraction has 1044 states and 3243 transitions. [2019-01-01 00:58:02,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-01 00:58:02,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3243 transitions. [2019-01-01 00:58:02,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-01-01 00:58:02,429 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:02,430 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:58:02,430 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:02,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:02,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1935451892, now seen corresponding path program 1 times [2019-01-01 00:58:02,431 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:02,431 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:02,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:02,435 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:02,435 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:02,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:02,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:02,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-01 00:58:02,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-01 00:58:02,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-01 00:58:02,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-01-01 00:58:02,571 INFO L87 Difference]: Start difference. First operand 1044 states and 3243 transitions. Second operand 6 states. [2019-01-01 00:58:02,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:02,915 INFO L93 Difference]: Finished difference Result 820 states and 2379 transitions. [2019-01-01 00:58:02,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:58:02,916 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-01-01 00:58:02,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:02,922 INFO L225 Difference]: With dead ends: 820 [2019-01-01 00:58:02,923 INFO L226 Difference]: Without dead ends: 708 [2019-01-01 00:58:02,923 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-01-01 00:58:02,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2019-01-01 00:58:02,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2019-01-01 00:58:02,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 708 states. [2019-01-01 00:58:02,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 2067 transitions. [2019-01-01 00:58:02,951 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 2067 transitions. Word has length 32 [2019-01-01 00:58:02,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:02,951 INFO L480 AbstractCegarLoop]: Abstraction has 708 states and 2067 transitions. [2019-01-01 00:58:02,951 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-01 00:58:02,952 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 2067 transitions. [2019-01-01 00:58:02,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:58:02,955 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:02,955 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:58:02,955 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:02,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:02,956 INFO L82 PathProgramCache]: Analyzing trace with hash 794836574, now seen corresponding path program 1 times [2019-01-01 00:58:02,957 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:02,957 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:02,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:02,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:02,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:03,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:03,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:03,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:58:03,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:58:03,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:58:03,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:58:03,288 INFO L87 Difference]: Start difference. First operand 708 states and 2067 transitions. Second operand 7 states. [2019-01-01 00:58:03,690 WARN L181 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-01-01 00:58:03,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:03,752 INFO L93 Difference]: Finished difference Result 1108 states and 3291 transitions. [2019-01-01 00:58:03,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:58:03,753 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-01-01 00:58:03,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:03,759 INFO L225 Difference]: With dead ends: 1108 [2019-01-01 00:58:03,761 INFO L226 Difference]: Without dead ends: 592 [2019-01-01 00:58:03,762 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:58:03,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2019-01-01 00:58:03,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 592. [2019-01-01 00:58:03,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2019-01-01 00:58:03,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 1755 transitions. [2019-01-01 00:58:03,785 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 1755 transitions. Word has length 33 [2019-01-01 00:58:03,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:03,785 INFO L480 AbstractCegarLoop]: Abstraction has 592 states and 1755 transitions. [2019-01-01 00:58:03,785 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:58:03,785 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 1755 transitions. [2019-01-01 00:58:03,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:58:03,790 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:03,790 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:58:03,791 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:03,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:03,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1428521192, now seen corresponding path program 2 times [2019-01-01 00:58:03,791 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:03,791 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:03,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:03,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 00:58:03,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:03,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:04,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:04,132 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:04,132 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:58:04,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:58:04,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:58:04,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:58:04,133 INFO L87 Difference]: Start difference. First operand 592 states and 1755 transitions. Second operand 7 states. [2019-01-01 00:58:04,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:04,467 INFO L93 Difference]: Finished difference Result 976 states and 2939 transitions. [2019-01-01 00:58:04,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:58:04,468 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-01-01 00:58:04,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:04,473 INFO L225 Difference]: With dead ends: 976 [2019-01-01 00:58:04,473 INFO L226 Difference]: Without dead ends: 556 [2019-01-01 00:58:04,474 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-01-01 00:58:04,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2019-01-01 00:58:04,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2019-01-01 00:58:04,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2019-01-01 00:58:04,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 1671 transitions. [2019-01-01 00:58:04,492 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 1671 transitions. Word has length 33 [2019-01-01 00:58:04,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:04,493 INFO L480 AbstractCegarLoop]: Abstraction has 556 states and 1671 transitions. [2019-01-01 00:58:04,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:58:04,493 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 1671 transitions. [2019-01-01 00:58:04,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-01-01 00:58:04,495 INFO L394 BasicCegarLoop]: Found error trace [2019-01-01 00:58:04,495 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-01 00:58:04,495 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-01 00:58:04,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 00:58:04,496 INFO L82 PathProgramCache]: Analyzing trace with hash -1919769948, now seen corresponding path program 3 times [2019-01-01 00:58:04,496 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 00:58:04,496 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 00:58:04,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:04,499 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 00:58:04,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 00:58:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 00:58:04,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 00:58:04,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 00:58:04,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-01-01 00:58:04,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-01-01 00:58:04,710 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-01-01 00:58:04,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-01-01 00:58:04,711 INFO L87 Difference]: Start difference. First operand 556 states and 1671 transitions. Second operand 7 states. [2019-01-01 00:58:04,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 00:58:04,859 INFO L93 Difference]: Finished difference Result 428 states and 1255 transitions. [2019-01-01 00:58:04,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-01 00:58:04,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-01-01 00:58:04,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-01 00:58:04,859 INFO L225 Difference]: With dead ends: 428 [2019-01-01 00:58:04,859 INFO L226 Difference]: Without dead ends: 0 [2019-01-01 00:58:04,860 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-01-01 00:58:04,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-01 00:58:04,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-01 00:58:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-01 00:58:04,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 00:58:04,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-01-01 00:58:04,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-01 00:58:04,861 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 00:58:04,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-01-01 00:58:04,861 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-01 00:58:04,861 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-01 00:58:04,864 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-01 00:58:04,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.01 12:58:04 BasicIcfg [2019-01-01 00:58:04,866 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-01 00:58:04,867 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 00:58:04,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 00:58:04,867 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 00:58:04,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 12:58:00" (3/4) ... [2019-01-01 00:58:04,872 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-01 00:58:04,881 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-01-01 00:58:04,881 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-01-01 00:58:04,881 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-01-01 00:58:04,887 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-01-01 00:58:04,887 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-01 00:58:04,937 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-01 00:58:04,937 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 00:58:04,938 INFO L168 Benchmark]: Toolchain (without parser) took 5997.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 946.0 MB in the beginning and 853.1 MB in the end (delta: 92.9 MB). Peak memory consumption was 219.7 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:04,940 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 00:58:04,940 INFO L168 Benchmark]: CACSL2BoogieTranslator took 876.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:04,941 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.85 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. [2019-01-01 00:58:04,941 INFO L168 Benchmark]: Boogie Preprocessor took 33.57 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. [2019-01-01 00:58:04,942 INFO L168 Benchmark]: RCFGBuilder took 549.78 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:04,943 INFO L168 Benchmark]: TraceAbstraction took 4403.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 860.1 MB in the end (delta: 214.6 MB). Peak memory consumption was 214.6 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:04,943 INFO L168 Benchmark]: Witness Printer took 70.79 ms. Allocated memory is still 1.2 GB. Free memory was 860.1 MB in the beginning and 853.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-01-01 00:58:04,947 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 876.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -154.0 MB). Peak memory consumption was 31.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.85 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 33.57 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 549.78 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: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4403.88 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 860.1 MB in the end (delta: 214.6 MB). Peak memory consumption was 214.6 MB. Max. memory is 11.5 GB. * Witness Printer took 70.79 ms. Allocated memory is still 1.2 GB. Free memory was 860.1 MB in the beginning and 853.1 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 71 locations, 1 error locations. SAFE Result, 4.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 356 SDtfs, 431 SDslu, 926 SDs, 0 SdLazy, 113 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 53 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2385occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 15102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...