./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-wmm/safe009_pso.opt_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/safe009_pso.opt_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 8bd9ca18245af8e5328828c1ee802038d2a3464c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 20:42:47,894 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 20:42:47,896 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 20:42:47,913 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 20:42:47,914 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 20:42:47,916 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 20:42:47,920 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 20:42:47,923 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 20:42:47,926 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 20:42:47,928 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 20:42:47,931 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 20:42:47,932 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 20:42:47,933 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 20:42:47,934 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 20:42:47,938 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 20:42:47,939 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 20:42:47,940 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 20:42:47,950 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 20:42:47,952 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 20:42:47,957 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 20:42:47,961 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 20:42:47,964 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 20:42:47,970 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 20:42:47,971 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 20:42:47,971 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 20:42:47,972 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 20:42:47,975 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 20:42:47,977 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 20:42:47,979 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 20:42:47,980 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 20:42:47,982 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 20:42:47,983 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 20:42:47,983 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 20:42:47,984 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 20:42:47,986 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 20:42:47,988 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 20:42:47,989 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 20:42:48,018 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 20:42:48,019 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 20:42:48,019 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 20:42:48,020 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 20:42:48,020 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 20:42:48,020 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 20:42:48,021 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 20:42:48,024 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 20:42:48,024 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 20:42:48,025 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 20:42:48,025 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 20:42:48,025 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 20:42:48,025 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 20:42:48,025 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 20:42:48,025 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 20:42:48,026 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 20:42:48,027 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 20:42:48,027 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 20:42:48,027 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 20:42:48,027 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 20:42:48,027 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 20:42:48,028 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 20:42:48,028 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 20:42:48,028 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 20:42:48,028 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 20:42:48,028 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 20:42:48,028 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 20:42:48,029 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 20:42:48,031 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 20:42:48,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 20:42:48,032 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 -> 8bd9ca18245af8e5328828c1ee802038d2a3464c [2018-11-28 20:42:48,092 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 20:42:48,110 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 20:42:48,116 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 20:42:48,118 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 20:42:48,118 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 20:42:48,119 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-wmm/safe009_pso.opt_true-unreach-call.i [2018-11-28 20:42:48,188 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d71c855/eb2d693307cb4050b15283b0b9565daa/FLAG0203b9bb4 [2018-11-28 20:42:48,755 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 20:42:48,756 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-wmm/safe009_pso.opt_true-unreach-call.i [2018-11-28 20:42:48,770 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d71c855/eb2d693307cb4050b15283b0b9565daa/FLAG0203b9bb4 [2018-11-28 20:42:48,997 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/47d71c855/eb2d693307cb4050b15283b0b9565daa [2018-11-28 20:42:49,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 20:42:49,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 20:42:49,005 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 20:42:49,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 20:42:49,009 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 20:42:49,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:42:48" (1/1) ... [2018-11-28 20:42:49,013 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 08:42:49, skipping insertion in model container [2018-11-28 20:42:49,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:42:48" (1/1) ... [2018-11-28 20:42:49,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 20:42:49,079 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 20:42:49,551 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:42:49,572 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 20:42:49,773 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 20:42:49,882 INFO L195 MainTranslator]: Completed translation [2018-11-28 20:42:49,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49 WrapperNode [2018-11-28 20:42:49,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 20:42:49,884 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 20:42:49,884 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 20:42:49,884 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 20:42:49,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49" (1/1) ... [2018-11-28 20:42:49,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49" (1/1) ... [2018-11-28 20:42:49,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 20:42:49,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 20:42:49,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 20:42:49,954 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 20:42:49,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49" (1/1) ... [2018-11-28 20:42:49,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49" (1/1) ... [2018-11-28 20:42:49,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49" (1/1) ... [2018-11-28 20:42:49,978 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49" (1/1) ... [2018-11-28 20:42:49,994 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49" (1/1) ... [2018-11-28 20:42:49,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49" (1/1) ... [2018-11-28 20:42:50,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49" (1/1) ... [2018-11-28 20:42:50,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 20:42:50,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 20:42:50,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 20:42:50,017 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 20:42:50,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49" (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 20:42:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 20:42:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 20:42:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2018-11-28 20:42:50,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 20:42:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2018-11-28 20:42:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2018-11-28 20:42:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2018-11-28 20:42:50,089 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2018-11-28 20:42:50,089 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2018-11-28 20:42:50,090 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2018-11-28 20:42:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2018-11-28 20:42:50,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 20:42:50,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 20:42:50,092 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 20:42:50,617 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 20:42:50,618 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 20:42:50,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:50 BoogieIcfgContainer [2018-11-28 20:42:50,621 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 20:42:50,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 20:42:50,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 20:42:50,625 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 20:42:50,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:42:48" (1/3) ... [2018-11-28 20:42:50,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7537bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:42:50, skipping insertion in model container [2018-11-28 20:42:50,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:42:49" (2/3) ... [2018-11-28 20:42:50,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f7537bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:42:50, skipping insertion in model container [2018-11-28 20:42:50,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:50" (3/3) ... [2018-11-28 20:42:50,630 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_pso.opt_true-unreach-call.i [2018-11-28 20:42:50,663 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,663 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,663 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,663 WARN L317 ript$VariableManager]: TermVariabe Thread1_P0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,664 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,664 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,664 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,664 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,664 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,665 WARN L317 ript$VariableManager]: TermVariabe |Thread1_P0_#t~nondet3.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,665 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,665 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,665 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,665 WARN L317 ript$VariableManager]: TermVariabe Thread2_P1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,668 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,668 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,668 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,668 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,668 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,668 WARN L317 ript$VariableManager]: TermVariabe |Thread2_P1_#t~nondet4.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,670 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,670 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,670 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,670 WARN L317 ript$VariableManager]: TermVariabe Thread0_P2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,670 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,670 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,670 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,671 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,671 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,671 WARN L317 ript$VariableManager]: TermVariabe |Thread0_P2_#t~nondet5.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 20:42:50,708 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-28 20:42:50,708 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 20:42:50,716 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 20:42:50,733 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 20:42:50,758 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 20:42:50,758 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 20:42:50,758 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 20:42:50,759 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 20:42:50,759 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 20:42:50,759 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 20:42:50,759 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 20:42:50,759 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 20:42:50,759 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 20:42:50,768 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55places, 52 transitions [2018-11-28 20:42:50,906 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2384 states. [2018-11-28 20:42:50,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states. [2018-11-28 20:42:50,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-28 20:42:50,936 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:50,937 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] [2018-11-28 20:42:50,939 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:50,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:50,946 INFO L82 PathProgramCache]: Analyzing trace with hash 100325607, now seen corresponding path program 1 times [2018-11-28 20:42:50,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:50,949 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:51,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:51,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:51,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:51,343 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 20:42:51,346 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:51,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 20:42:51,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 20:42:51,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 20:42:51,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 20:42:51,372 INFO L87 Difference]: Start difference. First operand 2384 states. Second operand 4 states. [2018-11-28 20:42:51,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:51,546 INFO L93 Difference]: Finished difference Result 2492 states and 8068 transitions. [2018-11-28 20:42:51,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 20:42:51,548 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2018-11-28 20:42:51,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:51,584 INFO L225 Difference]: With dead ends: 2492 [2018-11-28 20:42:51,584 INFO L226 Difference]: Without dead ends: 1127 [2018-11-28 20:42:51,587 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 [2018-11-28 20:42:51,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1127 states. [2018-11-28 20:42:51,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1127 to 1127. [2018-11-28 20:42:51,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2018-11-28 20:42:51,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 3557 transitions. [2018-11-28 20:42:51,748 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 3557 transitions. Word has length 29 [2018-11-28 20:42:51,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:51,748 INFO L480 AbstractCegarLoop]: Abstraction has 1127 states and 3557 transitions. [2018-11-28 20:42:51,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 20:42:51,749 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 3557 transitions. [2018-11-28 20:42:51,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 20:42:51,755 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:51,755 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] [2018-11-28 20:42:51,756 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:51,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:51,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1012637439, now seen corresponding path program 1 times [2018-11-28 20:42:51,756 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:51,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:51,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:51,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:51,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:51,997 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 20:42:51,998 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:51,998 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 20:42:52,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-28 20:42:52,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 20:42:52,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-28 20:42:52,001 INFO L87 Difference]: Start difference. First operand 1127 states and 3557 transitions. Second operand 5 states. [2018-11-28 20:42:52,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:52,544 INFO L93 Difference]: Finished difference Result 1167 states and 3551 transitions. [2018-11-28 20:42:52,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 20:42:52,546 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2018-11-28 20:42:52,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:52,557 INFO L225 Difference]: With dead ends: 1167 [2018-11-28 20:42:52,558 INFO L226 Difference]: Without dead ends: 1043 [2018-11-28 20:42:52,559 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 20:42:52,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2018-11-28 20:42:52,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 1043. [2018-11-28 20:42:52,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1043 states. [2018-11-28 20:42:52,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1043 states to 1043 states and 3242 transitions. [2018-11-28 20:42:52,616 INFO L78 Accepts]: Start accepts. Automaton has 1043 states and 3242 transitions. Word has length 30 [2018-11-28 20:42:52,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:52,617 INFO L480 AbstractCegarLoop]: Abstraction has 1043 states and 3242 transitions. [2018-11-28 20:42:52,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-28 20:42:52,618 INFO L276 IsEmpty]: Start isEmpty. Operand 1043 states and 3242 transitions. [2018-11-28 20:42:52,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 20:42:52,621 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:52,622 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 20:42:52,622 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:52,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:52,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1278569811, now seen corresponding path program 1 times [2018-11-28 20:42:52,623 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:52,624 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:52,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:52,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:52,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:52,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:52,828 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 20:42:52,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:52,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 20:42:52,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 20:42:52,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 20:42:52,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-28 20:42:52,831 INFO L87 Difference]: Start difference. First operand 1043 states and 3242 transitions. Second operand 6 states. [2018-11-28 20:42:53,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:53,193 INFO L93 Difference]: Finished difference Result 819 states and 2378 transitions. [2018-11-28 20:42:53,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:42:53,194 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2018-11-28 20:42:53,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:53,201 INFO L225 Difference]: With dead ends: 819 [2018-11-28 20:42:53,201 INFO L226 Difference]: Without dead ends: 707 [2018-11-28 20:42:53,202 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-28 20:42:53,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2018-11-28 20:42:53,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2018-11-28 20:42:53,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 707 states. [2018-11-28 20:42:53,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 2066 transitions. [2018-11-28 20:42:53,231 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 2066 transitions. Word has length 31 [2018-11-28 20:42:53,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:53,231 INFO L480 AbstractCegarLoop]: Abstraction has 707 states and 2066 transitions. [2018-11-28 20:42:53,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 20:42:53,232 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 2066 transitions. [2018-11-28 20:42:53,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:42:53,235 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:53,235 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 20:42:53,236 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:53,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:53,237 INFO L82 PathProgramCache]: Analyzing trace with hash 731663071, now seen corresponding path program 1 times [2018-11-28 20:42:53,237 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:53,237 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:53,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:53,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:53,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:53,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:53,572 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 20:42:53,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:53,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:42:53,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:42:53,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:42:53,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:53,574 INFO L87 Difference]: Start difference. First operand 707 states and 2066 transitions. Second operand 7 states. [2018-11-28 20:42:54,027 WARN L180 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-11-28 20:42:54,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:54,041 INFO L93 Difference]: Finished difference Result 1187 states and 3490 transitions. [2018-11-28 20:42:54,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 20:42:54,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-11-28 20:42:54,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:54,052 INFO L225 Difference]: With dead ends: 1187 [2018-11-28 20:42:54,053 INFO L226 Difference]: Without dead ends: 671 [2018-11-28 20:42:54,053 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:42:54,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2018-11-28 20:42:54,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 671. [2018-11-28 20:42:54,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 671 states. [2018-11-28 20:42:54,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 671 states to 671 states and 1974 transitions. [2018-11-28 20:42:54,077 INFO L78 Accepts]: Start accepts. Automaton has 671 states and 1974 transitions. Word has length 32 [2018-11-28 20:42:54,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:54,077 INFO L480 AbstractCegarLoop]: Abstraction has 671 states and 1974 transitions. [2018-11-28 20:42:54,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:42:54,078 INFO L276 IsEmpty]: Start isEmpty. Operand 671 states and 1974 transitions. [2018-11-28 20:42:54,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:42:54,081 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:54,081 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 20:42:54,081 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:54,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:54,082 INFO L82 PathProgramCache]: Analyzing trace with hash -360491193, now seen corresponding path program 2 times [2018-11-28 20:42:54,082 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:54,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:54,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:54,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 20:42:54,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:54,392 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 20:42:54,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:54,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-28 20:42:54,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-28 20:42:54,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-28 20:42:54,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-11-28 20:42:54,393 INFO L87 Difference]: Start difference. First operand 671 states and 1974 transitions. Second operand 8 states. [2018-11-28 20:42:54,613 WARN L180 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2018-11-28 20:42:55,451 WARN L180 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 22 [2018-11-28 20:42:55,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:55,469 INFO L93 Difference]: Finished difference Result 1055 states and 3158 transitions. [2018-11-28 20:42:55,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:42:55,470 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2018-11-28 20:42:55,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:55,475 INFO L225 Difference]: With dead ends: 1055 [2018-11-28 20:42:55,475 INFO L226 Difference]: Without dead ends: 555 [2018-11-28 20:42:55,476 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2018-11-28 20:42:55,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2018-11-28 20:42:55,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2018-11-28 20:42:55,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2018-11-28 20:42:55,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 1670 transitions. [2018-11-28 20:42:55,496 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 1670 transitions. Word has length 32 [2018-11-28 20:42:55,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:55,496 INFO L480 AbstractCegarLoop]: Abstraction has 555 states and 1670 transitions. [2018-11-28 20:42:55,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-28 20:42:55,496 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 1670 transitions. [2018-11-28 20:42:55,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 20:42:55,499 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 20:42:55,499 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 20:42:55,500 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 20:42:55,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 20:42:55,501 INFO L82 PathProgramCache]: Analyzing trace with hash -40855097, now seen corresponding path program 3 times [2018-11-28 20:42:55,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 20:42:55,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 20:42:55,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:55,505 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 20:42:55,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 20:42:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 20:42:55,714 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 20:42:55,714 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 20:42:55,714 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 20:42:55,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 20:42:55,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 20:42:55,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 20:42:55,715 INFO L87 Difference]: Start difference. First operand 555 states and 1670 transitions. Second operand 7 states. [2018-11-28 20:42:55,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 20:42:55,974 INFO L93 Difference]: Finished difference Result 427 states and 1254 transitions. [2018-11-28 20:42:55,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-28 20:42:55,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2018-11-28 20:42:55,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 20:42:55,976 INFO L225 Difference]: With dead ends: 427 [2018-11-28 20:42:55,976 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 20:42:55,980 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2018-11-28 20:42:55,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 20:42:55,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 20:42:55,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 20:42:55,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 20:42:55,981 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-28 20:42:55,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 20:42:55,981 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 20:42:55,981 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 20:42:55,983 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 20:42:55,983 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 20:42:55,988 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-28 20:42:55,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 08:42:55 BasicIcfg [2018-11-28 20:42:55,990 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 20:42:55,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 20:42:55,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 20:42:55,990 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 20:42:55,991 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:42:50" (3/4) ... [2018-11-28 20:42:55,995 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 20:42:56,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2018-11-28 20:42:56,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2018-11-28 20:42:56,003 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2018-11-28 20:42:56,008 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-11-28 20:42:56,008 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 20:42:56,058 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 20:42:56,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 20:42:56,059 INFO L168 Benchmark]: Toolchain (without parser) took 7056.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 951.3 MB in the beginning and 818.3 MB in the end (delta: 133.0 MB). Peak memory consumption was 255.7 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:56,060 INFO L168 Benchmark]: CDTParser took 0.15 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 20:42:56,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 878.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:56,061 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.23 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:42:56,062 INFO L168 Benchmark]: Boogie Preprocessor took 62.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 20:42:56,062 INFO L168 Benchmark]: RCFGBuilder took 605.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:56,063 INFO L168 Benchmark]: TraceAbstraction took 5367.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 825.3 MB in the end (delta: 245.0 MB). Peak memory consumption was 245.0 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:56,064 INFO L168 Benchmark]: Witness Printer took 67.93 ms. Allocated memory is still 1.2 GB. Free memory was 825.3 MB in the beginning and 818.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2018-11-28 20:42:56,068 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 878.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -144.5 MB). Peak memory consumption was 36.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 69.23 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 62.58 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 605.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5367.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 825.3 MB in the end (delta: 245.0 MB). Peak memory consumption was 245.0 MB. Max. memory is 11.5 GB. * Witness Printer took 67.93 ms. Allocated memory is still 1.2 GB. Free memory was 825.3 MB in the beginning and 818.3 MB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 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, 70 locations, 1 error locations. SAFE Result, 5.2s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 327 SDtfs, 458 SDslu, 890 SDs, 0 SdLazy, 112 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2384occurred 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, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 180 ConstructedInterpolants, 0 QuantifiedInterpolants, 14603 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...