./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe007_pso.oepc_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/pthread-wmm/safe007_pso.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 b5aadf81e655899ef2566b8007a7abfd06ec6973 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 20:42:40,958 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:42:40,959 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:42:40,970 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:42:40,970 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:42:40,972 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:42:40,973 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:42:40,982 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:42:40,984 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:42:40,985 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:42:40,986 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:42:40,987 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:42:40,988 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:42:40,989 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:42:40,990 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:42:40,991 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:42:40,992 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:42:40,993 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:42:40,996 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:42:40,998 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:42:40,999 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:42:41,000 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:42:41,003 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:42:41,003 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:42:41,004 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:42:41,005 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:42:41,006 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:42:41,007 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:42:41,008 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:42:41,013 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:42:41,013 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:42:41,014 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:42:41,014 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:42:41,014 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:42:41,015 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:42:41,017 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:42:41,017 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:42:41,033 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:42:41,033 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:42:41,034 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:42:41,035 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:42:41,035 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:42:41,035 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:42:41,036 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:42:41,036 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:42:41,036 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:42:41,036 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:42:41,036 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:42:41,036 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:42:41,037 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:42:41,037 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:42:41,037 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:42:41,037 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:42:41,037 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:42:41,038 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:42:41,038 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:42:41,038 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:42:41,038 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:42:41,038 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:42:41,038 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:42:41,039 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:42:41,039 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:42:41,039 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:42:41,039 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:42:41,039 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:42:41,040 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:42:41,040 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:42:41,040 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 -> b5aadf81e655899ef2566b8007a7abfd06ec6973 [2018-11-28 20:42:41,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:42:41,116 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:42:41,123 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:42:41,125 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:42:41,126 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:42:41,127 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe007_pso.oepc_true-unreach-call.i [2018-11-28 20:42:41,201 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/046fad55c/f81238d476e943b981310f3ac7c4191f/FLAGb9592a098 [2018-11-28 20:42:41,745 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:42:41,746 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe007_pso.oepc_true-unreach-call.i [2018-11-28 20:42:41,762 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/046fad55c/f81238d476e943b981310f3ac7c4191f/FLAGb9592a098 [2018-11-28 20:42:41,978 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/046fad55c/f81238d476e943b981310f3ac7c4191f [2018-11-28 20:42:41,982 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:42:41,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:42:41,986 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:42:41,986 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:42:41,991 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:42:41,992 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:42:41" (1/1) ... [2018-11-28 20:42:41,998 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c06540b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:41, skipping insertion in model container [2018-11-28 20:42:41,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:42:41" (1/1) ... [2018-11-28 20:42:42,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:42:42,078 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:42:42,541 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:42:42,558 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:42:42,717 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:42:42,833 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:42:42,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42 WrapperNode [2018-11-28 20:42:42,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:42:42,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:42:42,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:42:42,835 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:42:42,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42" (1/1) ... [2018-11-28 20:42:42,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42" (1/1) ... [2018-11-28 20:42:42,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:42:42,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:42:42,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:42:42,899 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:42:42,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42" (1/1) ... [2018-11-28 20:42:42,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42" (1/1) ... [2018-11-28 20:42:42,916 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42" (1/1) ... [2018-11-28 20:42:42,916 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42" (1/1) ... [2018-11-28 20:42:42,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42" (1/1) ... [2018-11-28 20:42:42,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42" (1/1) ... [2018-11-28 20:42:42,929 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42" (1/1) ... [2018-11-28 20:42:42,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:42:42,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:42:42,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:42:42,937 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:42:42,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:42:43,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:42:43,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:42:43,026 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:42:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:42:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:42:43,027 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:42:43,027 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:42:43,029 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:42:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:42:43,030 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:42:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:42:43,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:42:43,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:42:43,035 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-28 20:42:43,725 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:42:43,725 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:42:43,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:43 BoogieIcfgContainer [2018-11-28 20:42:43,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:42:43,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:42:43,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:42:43,735 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:42:43,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:42:41" (1/3) ... [2018-11-28 20:42:43,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e1c60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:42:43, skipping insertion in model container [2018-11-28 20:42:43,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:42" (2/3) ... [2018-11-28 20:42:43,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58e1c60c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:42:43, skipping insertion in model container [2018-11-28 20:42:43,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:43" (3/3) ... [2018-11-28 20:42:43,742 INFO L112 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_true-unreach-call.i [2018-11-28 20:42:43,795 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,796 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,796 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,796 WARN L317 ript$VariableManager]: TermVariabe Thread2_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,797 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,797 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,797 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,797 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,799 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,800 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,800 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,800 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,800 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,800 WARN L317 ript$VariableManager]: TermVariabe Thread0_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,801 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,801 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,801 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,801 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,801 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,802 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,804 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,804 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,805 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,805 WARN L317 ript$VariableManager]: TermVariabe Thread1_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,806 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:43,845 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:42:43,845 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:42:43,855 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:42:43,875 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:42:43,901 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:42:43,902 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:42:43,902 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:42:43,902 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:42:43,902 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:42:43,902 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:42:43,902 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:42:43,902 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:42:43,903 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:42:43,912 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57places, 54 transitions [2018-11-28 20:42:44,047 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2386 states. [2018-11-28 20:42:44,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states. [2018-11-28 20:42:44,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:42:44,070 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:44,071 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:42:44,073 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:44,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:44,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1011204503, now seen corresponding path program 1 times [2018-11-28 20:42:44,082 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:44,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:44,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:44,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:44,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:44,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:44,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:44,384 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:42:44,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:42:44,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:42:44,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:42:44,409 INFO L87 Difference]: Start difference. First operand 2386 states. Second operand 4 states. [2018-11-28 20:42:44,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:44,619 INFO L93 Difference]: Finished difference Result 2494 states and 8070 transitions. [2018-11-28 20:42:44,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:42:44,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-11-28 20:42:44,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:44,654 INFO L225 Difference]: With dead ends: 2494 [2018-11-28 20:42:44,655 INFO L226 Difference]: Without dead ends: 1129 [2018-11-28 20:42:44,657 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:42:44,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2018-11-28 20:42:44,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1129. [2018-11-28 20:42:44,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1129 states. [2018-11-28 20:42:44,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1129 states to 1129 states and 3559 transitions. [2018-11-28 20:42:44,807 INFO L78 Accepts]: Start accepts. Automaton has 1129 states and 3559 transitions. Word has length 31 [2018-11-28 20:42:44,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:44,807 INFO L480 AbstractCegarLoop]: Abstraction has 1129 states and 3559 transitions. [2018-11-28 20:42:44,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:42:44,808 INFO L276 IsEmpty]: Start isEmpty. Operand 1129 states and 3559 transitions. [2018-11-28 20:42:44,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:42:44,813 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:44,813 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:42:44,814 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:44,814 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:44,814 INFO L82 PathProgramCache]: Analyzing trace with hash -52650827, now seen corresponding path program 1 times [2018-11-28 20:42:44,814 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:44,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:44,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:44,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:44,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:45,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:45,011 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:45,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:42:45,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:42:45,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:42:45,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:42:45,015 INFO L87 Difference]: Start difference. First operand 1129 states and 3559 transitions. Second operand 5 states. [2018-11-28 20:42:45,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:45,515 INFO L93 Difference]: Finished difference Result 1169 states and 3553 transitions. [2018-11-28 20:42:45,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:42:45,517 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2018-11-28 20:42:45,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:45,527 INFO L225 Difference]: With dead ends: 1169 [2018-11-28 20:42:45,527 INFO L226 Difference]: Without dead ends: 1045 [2018-11-28 20:42:45,528 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 [2018-11-28 20:42:45,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1045 states. [2018-11-28 20:42:45,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1045 to 1045. [2018-11-28 20:42:45,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1045 states. [2018-11-28 20:42:45,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 3244 transitions. [2018-11-28 20:42:45,579 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 3244 transitions. Word has length 32 [2018-11-28 20:42:45,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:45,580 INFO L480 AbstractCegarLoop]: Abstraction has 1045 states and 3244 transitions. [2018-11-28 20:42:45,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:42:45,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 3244 transitions. [2018-11-28 20:42:45,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 20:42:45,584 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:45,584 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:42:45,584 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:45,585 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:45,585 INFO L82 PathProgramCache]: Analyzing trace with hash -68156749, now seen corresponding path program 1 times [2018-11-28 20:42:45,585 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:45,585 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:45,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:45,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:45,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:45,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:45,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:45,946 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:45,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:42:45,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:42:45,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:42:45,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:42:45,947 INFO L87 Difference]: Start difference. First operand 1045 states and 3244 transitions. Second operand 6 states. [2018-11-28 20:42:46,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:46,166 INFO L93 Difference]: Finished difference Result 821 states and 2380 transitions. [2018-11-28 20:42:46,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:42:46,170 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2018-11-28 20:42:46,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:46,177 INFO L225 Difference]: With dead ends: 821 [2018-11-28 20:42:46,177 INFO L226 Difference]: Without dead ends: 709 [2018-11-28 20:42:46,177 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 [2018-11-28 20:42:46,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 709 states. [2018-11-28 20:42:46,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 709 to 709. [2018-11-28 20:42:46,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 709 states. [2018-11-28 20:42:46,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 709 states to 709 states and 2068 transitions. [2018-11-28 20:42:46,207 INFO L78 Accepts]: Start accepts. Automaton has 709 states and 2068 transitions. Word has length 33 [2018-11-28 20:42:46,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:46,208 INFO L480 AbstractCegarLoop]: Abstraction has 709 states and 2068 transitions. [2018-11-28 20:42:46,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:42:46,208 INFO L276 IsEmpty]: Start isEmpty. Operand 709 states and 2068 transitions. [2018-11-28 20:42:46,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 20:42:46,211 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:46,211 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, 1] [2018-11-28 20:42:46,212 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:46,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:46,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1158860001, now seen corresponding path program 1 times [2018-11-28 20:42:46,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:46,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:46,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:46,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:46,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:46,606 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-28 20:42:46,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:46,876 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:46,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:42:46,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:42:46,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:42:46,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:42:46,878 INFO L87 Difference]: Start difference. First operand 709 states and 2068 transitions. Second operand 8 states. [2018-11-28 20:42:47,334 WARN L180 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2018-11-28 20:42:47,683 WARN L180 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2018-11-28 20:42:47,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:47,735 INFO L93 Difference]: Finished difference Result 1109 states and 3292 transitions. [2018-11-28 20:42:47,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:42:47,737 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2018-11-28 20:42:47,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:47,743 INFO L225 Difference]: With dead ends: 1109 [2018-11-28 20:42:47,743 INFO L226 Difference]: Without dead ends: 593 [2018-11-28 20:42:47,744 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-28 20:42:47,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2018-11-28 20:42:47,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 593. [2018-11-28 20:42:47,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2018-11-28 20:42:47,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 1756 transitions. [2018-11-28 20:42:47,770 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 1756 transitions. Word has length 34 [2018-11-28 20:42:47,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:47,770 INFO L480 AbstractCegarLoop]: Abstraction has 593 states and 1756 transitions. [2018-11-28 20:42:47,771 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:42:47,772 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 1756 transitions. [2018-11-28 20:42:47,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 20:42:47,774 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:47,774 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, 1] [2018-11-28 20:42:47,774 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:47,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:47,775 INFO L82 PathProgramCache]: Analyzing trace with hash -703513849, now seen corresponding path program 2 times [2018-11-28 20:42:47,775 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:47,775 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:47,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:47,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:47,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:47,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:48,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:48,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:48,197 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:42:48,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:42:48,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:42:48,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:48,199 INFO L87 Difference]: Start difference. First operand 593 states and 1756 transitions. Second operand 7 states. [2018-11-28 20:42:48,579 WARN L180 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-28 20:42:48,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:48,780 INFO L93 Difference]: Finished difference Result 977 states and 2940 transitions. [2018-11-28 20:42:48,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:42:48,782 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-28 20:42:48,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:48,787 INFO L225 Difference]: With dead ends: 977 [2018-11-28 20:42:48,787 INFO L226 Difference]: Without dead ends: 557 [2018-11-28 20:42:48,787 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:42:48,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2018-11-28 20:42:48,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2018-11-28 20:42:48,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2018-11-28 20:42:48,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 1672 transitions. [2018-11-28 20:42:48,805 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 1672 transitions. Word has length 34 [2018-11-28 20:42:48,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:48,806 INFO L480 AbstractCegarLoop]: Abstraction has 557 states and 1672 transitions. [2018-11-28 20:42:48,806 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:42:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 1672 transitions. [2018-11-28 20:42:48,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-28 20:42:48,807 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:48,808 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, 1] [2018-11-28 20:42:48,808 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:48,808 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:48,808 INFO L82 PathProgramCache]: Analyzing trace with hash 1434143397, now seen corresponding path program 3 times [2018-11-28 20:42:48,808 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:48,808 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:48,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:48,811 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:42:48,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:48,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:49,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 20:42:49,013 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:49,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:42:49,013 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:42:49,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:42:49,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:49,014 INFO L87 Difference]: Start difference. First operand 557 states and 1672 transitions. Second operand 7 states. [2018-11-28 20:42:49,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:49,157 INFO L93 Difference]: Finished difference Result 429 states and 1256 transitions. [2018-11-28 20:42:49,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:42:49,158 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-11-28 20:42:49,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:49,158 INFO L225 Difference]: With dead ends: 429 [2018-11-28 20:42:49,159 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:42:49,159 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 [2018-11-28 20:42:49,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:42:49,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:42:49,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:42:49,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:42:49,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-11-28 20:42:49,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:49,160 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:42:49,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:42:49,160 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:42:49,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:42:49,164 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:42:49,166 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:42:49 BasicIcfg [2018-11-28 20:42:49,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:42:49,166 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:42:49,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:42:49,167 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:42:49,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:43" (3/4) ... [2018-11-28 20:42:49,172 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:42:49,180 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:42:49,180 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:42:49,180 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:42:49,186 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:42:49,186 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:42:49,242 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:42:49,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:42:49,243 INFO L168 Benchmark]: Toolchain (without parser) took 7260.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 954.0 MB in the beginning and 815.5 MB in the end (delta: 138.6 MB). Peak memory consumption was 250.3 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:49,244 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:42:49,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 848.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -130.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:49,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.89 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:42:49,246 INFO L168 Benchmark]: Boogie Preprocessor took 37.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:42:49,247 INFO L168 Benchmark]: RCFGBuilder took 792.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:49,247 INFO L168 Benchmark]: TraceAbstraction took 5434.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 822.4 MB in the end (delta: 236.1 MB). Peak memory consumption was 236.1 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:49,248 INFO L168 Benchmark]: Witness Printer took 75.84 ms. Allocated memory is still 1.1 GB. Free memory was 822.4 MB in the beginning and 815.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:49,257 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 848.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.7 MB). Free memory was 954.0 MB in the beginning and 1.1 GB in the end (delta: -130.9 MB). Peak memory consumption was 32.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 63.89 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.41 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 792.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5434.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 822.4 MB in the end (delta: 236.1 MB). Peak memory consumption was 236.1 MB. Max. memory is 11.5 GB. * Witness Printer took 75.84 ms. Allocated memory is still 1.1 GB. Free memory was 822.4 MB in the beginning and 815.5 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, 72 locations, 1 error locations. SAFE Result, 5.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 323 SDtfs, 489 SDslu, 847 SDs, 0 SdLazy, 112 SolverSat, 41 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred 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, 1.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 17253 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...