./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-races/race-1_1-join.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/ldv-races/race-1_1-join.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 3cd35ce33d4b035fe378e7f17ce504e953f9db6a ........................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 18:34:59,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:34:59,856 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:34:59,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:34:59,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:34:59,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:34:59,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:34:59,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:34:59,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:34:59,896 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:34:59,897 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:34:59,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:34:59,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:34:59,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:34:59,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:34:59,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:34:59,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:34:59,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:34:59,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:34:59,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:34:59,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:34:59,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:34:59,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:34:59,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:34:59,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:34:59,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:34:59,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:34:59,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:34:59,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:34:59,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:34:59,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:34:59,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:34:59,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:34:59,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:34:59,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:34:59,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:34:59,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:34:59,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:34:59,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:34:59,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:34:59,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:34:59,925 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:34:59,939 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:34:59,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:34:59,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:34:59,941 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:34:59,941 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:34:59,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:34:59,942 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:34:59,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:34:59,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:34:59,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:34:59,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:34:59,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:34:59,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:34:59,943 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:34:59,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:34:59,944 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:34:59,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:34:59,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:34:59,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:34:59,945 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:34:59,945 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:34:59,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:34:59,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:34:59,946 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:34:59,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:34:59,946 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:34:59,946 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:34:59,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:34:59,947 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:34:59,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 3cd35ce33d4b035fe378e7f17ce504e953f9db6a [2019-11-28 18:35:00,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:35:00,266 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:35:00,270 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:35:00,272 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:35:00,273 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:35:00,274 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-races/race-1_1-join.i [2019-11-28 18:35:00,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7429c51ed/ddddc2886d574b49b938bedf3e52afc0/FLAG1153466f8 [2019-11-28 18:35:00,995 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:35:00,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-races/race-1_1-join.i [2019-11-28 18:35:01,022 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7429c51ed/ddddc2886d574b49b938bedf3e52afc0/FLAG1153466f8 [2019-11-28 18:35:01,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7429c51ed/ddddc2886d574b49b938bedf3e52afc0 [2019-11-28 18:35:01,196 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:35:01,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:35:01,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:35:01,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:35:01,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:35:01,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:35:01" (1/1) ... [2019-11-28 18:35:01,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff623f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:01, skipping insertion in model container [2019-11-28 18:35:01,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:35:01" (1/1) ... [2019-11-28 18:35:01,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:35:01,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:35:02,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:35:02,123 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:35:02,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:35:02,627 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:35:02,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02 WrapperNode [2019-11-28 18:35:02,628 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:35:02,629 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:35:02,629 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:35:02,629 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:35:02,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02" (1/1) ... [2019-11-28 18:35:02,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02" (1/1) ... [2019-11-28 18:35:02,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:35:02,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:35:02,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:35:02,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:35:02,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02" (1/1) ... [2019-11-28 18:35:02,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02" (1/1) ... [2019-11-28 18:35:02,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02" (1/1) ... [2019-11-28 18:35:02,726 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02" (1/1) ... [2019-11-28 18:35:02,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02" (1/1) ... [2019-11-28 18:35:02,743 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02" (1/1) ... [2019-11-28 18:35:02,749 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02" (1/1) ... [2019-11-28 18:35:02,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:35:02,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:35:02,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:35:02,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:35:02,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:35:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:35:02,833 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-28 18:35:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-11-28 18:35:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-28 18:35:02,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:35:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:35:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:35:02,835 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-11-28 18:35:02,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-11-28 18:35:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:35:02,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-28 18:35:02,838 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-11-28 18:35:03,512 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:35:03,512 INFO L287 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-28 18:35:03,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:35:03 BoogieIcfgContainer [2019-11-28 18:35:03,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:35:03,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:35:03,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:35:03,520 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:35:03,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:35:01" (1/3) ... [2019-11-28 18:35:03,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe138d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:35:03, skipping insertion in model container [2019-11-28 18:35:03,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:35:02" (2/3) ... [2019-11-28 18:35:03,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe138d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:35:03, skipping insertion in model container [2019-11-28 18:35:03,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:35:03" (3/3) ... [2019-11-28 18:35:03,524 INFO L109 eAbstractionObserver]: Analyzing ICFG race-1_1-join.i [2019-11-28 18:35:03,535 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:35:03,535 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:35:03,543 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-28 18:35:03,544 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:35:03,572 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,572 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,573 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,573 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,573 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,574 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,574 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,574 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,575 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_ldv_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,575 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,575 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,575 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_ldv_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,576 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,576 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:35:03,600 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-11-28 18:35:03,621 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:35:03,621 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:35:03,621 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:35:03,622 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:35:03,622 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:35:03,622 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:35:03,622 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:35:03,622 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:35:03,639 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 84 transitions [2019-11-28 18:35:03,641 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 82 places, 84 transitions [2019-11-28 18:35:03,689 INFO L134 PetriNetUnfolder]: 5/95 cut-off events. [2019-11-28 18:35:03,689 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:35:03,695 INFO L76 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 5/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 176 event pairs. 7/91 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2019-11-28 18:35:03,699 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 82 places, 84 transitions [2019-11-28 18:35:03,721 INFO L134 PetriNetUnfolder]: 5/95 cut-off events. [2019-11-28 18:35:03,722 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:35:03,723 INFO L76 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 95 events. 5/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 176 event pairs. 7/91 useless extension candidates. Maximal degree in co-relation 52. Up to 3 conditions per place. [2019-11-28 18:35:03,725 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 392 [2019-11-28 18:35:03,726 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:35:05,799 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2019-11-28 18:35:06,226 WARN L192 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-11-28 18:35:06,339 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2019-11-28 18:35:06,682 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 30 [2019-11-28 18:35:06,916 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2019-11-28 18:35:07,214 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-11-28 18:35:07,326 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2019-11-28 18:35:07,479 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-11-28 18:35:07,642 WARN L192 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-11-28 18:35:07,668 INFO L206 etLargeBlockEncoding]: Checked pairs total: 291 [2019-11-28 18:35:07,668 INFO L214 etLargeBlockEncoding]: Total number of compositions: 100 [2019-11-28 18:35:07,672 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 16 places, 15 transitions [2019-11-28 18:35:07,679 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 25 states. [2019-11-28 18:35:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-11-28 18:35:07,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2019-11-28 18:35:07,686 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:35:07,687 INFO L410 BasicCegarLoop]: trace histogram [1] [2019-11-28 18:35:07,687 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, thread1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:35:07,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:35:07,692 INFO L82 PathProgramCache]: Analyzing trace with hash 345, now seen corresponding path program 1 times [2019-11-28 18:35:07,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:35:07,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579289435] [2019-11-28 18:35:07,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:35:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:35:07,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 18:35:07,976 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579289435] [2019-11-28 18:35:07,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:35:07,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2019-11-28 18:35:07,979 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220835027] [2019-11-28 18:35:07,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-28 18:35:07,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:35:08,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-28 18:35:08,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 18:35:08,011 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-11-28 18:35:08,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:35:08,026 INFO L93 Difference]: Finished difference Result 17 states and 21 transitions. [2019-11-28 18:35:08,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-28 18:35:08,028 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 1 [2019-11-28 18:35:08,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:35:08,036 INFO L225 Difference]: With dead ends: 17 [2019-11-28 18:35:08,036 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:35:08,038 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-28 18:35:08,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:35:08,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:35:08,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:35:08,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:35:08,067 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1 [2019-11-28 18:35:08,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:35:08,068 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:35:08,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-28 18:35:08,068 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:35:08,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:35:08,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:35:08 BasicIcfg [2019-11-28 18:35:08,073 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:35:08,074 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:35:08,074 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:35:08,074 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:35:08,075 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:35:03" (3/4) ... [2019-11-28 18:35:08,079 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:35:08,087 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2019-11-28 18:35:08,093 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2019-11-28 18:35:08,094 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:35:08,094 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:35:08,157 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:35:08,157 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:35:08,159 INFO L168 Benchmark]: Toolchain (without parser) took 6961.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 214.4 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -84.2 MB). Peak memory consumption was 130.3 MB. Max. memory is 11.5 GB. [2019-11-28 18:35:08,160 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:35:08,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1429.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -55.1 MB). Peak memory consumption was 99.4 MB. Max. memory is 11.5 GB. [2019-11-28 18:35:08,162 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:35:08,163 INFO L168 Benchmark]: Boogie Preprocessor took 48.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 998.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 18:35:08,165 INFO L168 Benchmark]: RCFGBuilder took 757.74 ms. Allocated memory is still 1.2 GB. Free memory was 998.0 MB in the beginning and 960.3 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. [2019-11-28 18:35:08,168 INFO L168 Benchmark]: TraceAbstraction took 4557.34 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 960.3 MB in the beginning and 1.0 GB in the end (delta: -73.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:35:08,172 INFO L168 Benchmark]: Witness Printer took 83.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:35:08,175 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 1429.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 949.6 MB in the beginning and 1.0 GB in the end (delta: -55.1 MB). Peak memory consumption was 99.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 79.92 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.07 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 998.0 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 757.74 ms. Allocated memory is still 1.2 GB. Free memory was 998.0 MB in the beginning and 960.3 MB in the end (delta: 37.7 MB). Peak memory consumption was 37.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4557.34 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 70.8 MB). Free memory was 960.3 MB in the beginning and 1.0 GB in the end (delta: -73.5 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 83.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 4.0s, 82 ProgramPointsBefore, 16 ProgramPointsAfterwards, 84 TransitionsBefore, 15 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 8 FixpointIterations, 65 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 7 ConcurrentYvCompositions, 4 ChoiceCompositions, 203 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 291 CheckedPairsTotal, 100 TotalNumberOfCompositions - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 1682]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 79 locations, 4 error locations. Result: SAFE, OverallTime: 4.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 1 NumberOfCodeBlocks, 1 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...