./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe005_tso.opt.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/pthread-wmm/safe005_tso.opt.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 a5672ac27634dc052f3f98774229eea6d84c6166 .................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:26:31,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 18:26:31,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 18:26:31,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 18:26:31,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 18:26:31,364 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 18:26:31,365 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 18:26:31,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 18:26:31,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 18:26:31,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 18:26:31,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 18:26:31,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 18:26:31,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 18:26:31,373 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 18:26:31,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 18:26:31,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 18:26:31,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 18:26:31,377 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 18:26:31,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 18:26:31,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 18:26:31,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 18:26:31,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 18:26:31,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 18:26:31,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 18:26:31,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 18:26:31,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 18:26:31,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 18:26:31,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 18:26:31,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 18:26:31,391 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 18:26:31,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 18:26:31,392 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 18:26:31,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 18:26:31,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 18:26:31,395 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 18:26:31,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 18:26:31,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 18:26:31,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 18:26:31,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 18:26:31,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 18:26:31,398 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 18:26:31,399 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-28 18:26:31,413 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 18:26:31,414 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 18:26:31,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 18:26:31,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 18:26:31,416 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 18:26:31,416 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 18:26:31,416 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 18:26:31,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 18:26:31,417 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 18:26:31,417 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 18:26:31,417 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 18:26:31,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 18:26:31,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 18:26:31,418 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 18:26:31,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 18:26:31,419 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 18:26:31,419 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 18:26:31,419 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 18:26:31,420 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 18:26:31,420 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 18:26:31,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 18:26:31,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 18:26:31,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 18:26:31,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 18:26:31,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 18:26:31,422 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 18:26:31,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 18:26:31,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 18:26:31,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 18:26:31,423 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 -> a5672ac27634dc052f3f98774229eea6d84c6166 [2019-11-28 18:26:31,728 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 18:26:31,744 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 18:26:31,749 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 18:26:31,750 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 18:26:31,750 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 18:26:31,752 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe005_tso.opt.i [2019-11-28 18:26:31,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4da9a8743/d1542e3ab2c844dcbc77e9e3d8df9dc9/FLAG3427c1835 [2019-11-28 18:26:32,401 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 18:26:32,402 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe005_tso.opt.i [2019-11-28 18:26:32,424 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4da9a8743/d1542e3ab2c844dcbc77e9e3d8df9dc9/FLAG3427c1835 [2019-11-28 18:26:32,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4da9a8743/d1542e3ab2c844dcbc77e9e3d8df9dc9 [2019-11-28 18:26:32,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 18:26:32,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 18:26:32,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 18:26:32,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 18:26:32,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 18:26:32,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:26:32" (1/1) ... [2019-11-28 18:26:32,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5399f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:32, skipping insertion in model container [2019-11-28 18:26:32,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:26:32" (1/1) ... [2019-11-28 18:26:32,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 18:26:32,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 18:26:33,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:26:33,213 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 18:26:33,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 18:26:33,363 INFO L208 MainTranslator]: Completed translation [2019-11-28 18:26:33,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33 WrapperNode [2019-11-28 18:26:33,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 18:26:33,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 18:26:33,366 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 18:26:33,366 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 18:26:33,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33" (1/1) ... [2019-11-28 18:26:33,392 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33" (1/1) ... [2019-11-28 18:26:33,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 18:26:33,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 18:26:33,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 18:26:33,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 18:26:33,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33" (1/1) ... [2019-11-28 18:26:33,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33" (1/1) ... [2019-11-28 18:26:33,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33" (1/1) ... [2019-11-28 18:26:33,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33" (1/1) ... [2019-11-28 18:26:33,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33" (1/1) ... [2019-11-28 18:26:33,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33" (1/1) ... [2019-11-28 18:26:33,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33" (1/1) ... [2019-11-28 18:26:33,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 18:26:33,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 18:26:33,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 18:26:33,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 18:26:33,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33" (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 18:26:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-28 18:26:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-11-28 18:26:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-28 18:26:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-28 18:26:33,527 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-11-28 18:26:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-11-28 18:26:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-11-28 18:26:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-11-28 18:26:33,528 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-11-28 18:26:33,528 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-11-28 18:26:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-11-28 18:26:33,529 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 18:26:33,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 18:26:33,530 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 18:26:33,899 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 18:26:33,900 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 18:26:33,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:26:33 BoogieIcfgContainer [2019-11-28 18:26:33,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 18:26:33,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 18:26:33,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 18:26:33,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 18:26:33,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:26:32" (1/3) ... [2019-11-28 18:26:33,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b6d92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:26:33, skipping insertion in model container [2019-11-28 18:26:33,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:26:33" (2/3) ... [2019-11-28 18:26:33,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31b6d92c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:26:33, skipping insertion in model container [2019-11-28 18:26:33,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:26:33" (3/3) ... [2019-11-28 18:26:33,909 INFO L109 eAbstractionObserver]: Analyzing ICFG safe005_tso.opt.i [2019-11-28 18:26:33,919 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-11-28 18:26:33,919 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 18:26:33,927 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-28 18:26:33,928 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-11-28 18:26:33,954 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,955 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,955 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,956 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,956 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,957 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,957 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,958 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,958 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,958 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,959 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,959 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,960 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,960 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,960 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,960 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,961 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,961 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-11-28 18:26:33,994 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-28 18:26:34,011 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 18:26:34,011 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 18:26:34,012 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 18:26:34,012 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 18:26:34,012 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 18:26:34,012 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 18:26:34,013 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 18:26:34,013 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 18:26:34,025 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-11-28 18:26:34,027 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:26:34,064 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:26:34,065 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:26:34,071 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:26:34,074 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-11-28 18:26:34,091 INFO L134 PetriNetUnfolder]: 1/51 cut-off events. [2019-11-28 18:26:34,091 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-11-28 18:26:34,092 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 24 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-11-28 18:26:34,094 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-11-28 18:26:34,096 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-11-28 18:26:35,392 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-11-28 18:26:35,540 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-11-28 18:26:35,541 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-11-28 18:26:35,544 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-11-28 18:26:35,557 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-11-28 18:26:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-11-28 18:26:35,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-28 18:26:35,567 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:26:35,568 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:26:35,569 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:26:35,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:26:35,575 INFO L82 PathProgramCache]: Analyzing trace with hash -53140901, now seen corresponding path program 1 times [2019-11-28 18:26:35,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:26:35,586 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93765993] [2019-11-28 18:26:35,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:26:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:26:35,967 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 18:26:35,969 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93765993] [2019-11-28 18:26:35,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:26:35,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-11-28 18:26:35,971 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134285198] [2019-11-28 18:26:35,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-28 18:26:35,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:26:35,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 18:26:35,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:26:35,997 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-11-28 18:26:36,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:26:36,046 INFO L93 Difference]: Finished difference Result 57 states and 102 transitions. [2019-11-28 18:26:36,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 18:26:36,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-28 18:26:36,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:26:36,082 INFO L225 Difference]: With dead ends: 57 [2019-11-28 18:26:36,084 INFO L226 Difference]: Without dead ends: 37 [2019-11-28 18:26:36,089 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 18:26:36,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-11-28 18:26:36,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 34. [2019-11-28 18:26:36,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-28 18:26:36,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 54 transitions. [2019-11-28 18:26:36,145 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 54 transitions. Word has length 8 [2019-11-28 18:26:36,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:26:36,147 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 54 transitions. [2019-11-28 18:26:36,147 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-28 18:26:36,148 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 54 transitions. [2019-11-28 18:26:36,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-28 18:26:36,151 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:26:36,151 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:26:36,152 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:26:36,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:26:36,153 INFO L82 PathProgramCache]: Analyzing trace with hash -816919897, now seen corresponding path program 1 times [2019-11-28 18:26:36,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:26:36,154 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161466728] [2019-11-28 18:26:36,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:26:36,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:26:36,282 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 18:26:36,282 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161466728] [2019-11-28 18:26:36,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:26:36,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:26:36,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432787315] [2019-11-28 18:26:36,285 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-28 18:26:36,286 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:26:36,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-28 18:26:36,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:26:36,287 INFO L87 Difference]: Start difference. First operand 34 states and 54 transitions. Second operand 5 states. [2019-11-28 18:26:36,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:26:36,361 INFO L93 Difference]: Finished difference Result 37 states and 52 transitions. [2019-11-28 18:26:36,362 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:26:36,362 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-11-28 18:26:36,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:26:36,363 INFO L225 Difference]: With dead ends: 37 [2019-11-28 18:26:36,363 INFO L226 Difference]: Without dead ends: 24 [2019-11-28 18:26:36,364 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-11-28 18:26:36,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-28 18:26:36,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-11-28 18:26:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-28 18:26:36,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 31 transitions. [2019-11-28 18:26:36,369 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 31 transitions. Word has length 9 [2019-11-28 18:26:36,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:26:36,371 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 31 transitions. [2019-11-28 18:26:36,372 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-28 18:26:36,372 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2019-11-28 18:26:36,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:26:36,372 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:26:36,373 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:26:36,373 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:26:36,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:26:36,374 INFO L82 PathProgramCache]: Analyzing trace with hash 419504828, now seen corresponding path program 1 times [2019-11-28 18:26:36,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:26:36,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926080258] [2019-11-28 18:26:36,375 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:26:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:26:36,491 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 18:26:36,492 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926080258] [2019-11-28 18:26:36,492 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:26:36,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 18:26:36,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000215604] [2019-11-28 18:26:36,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-28 18:26:36,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:26:36,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-28 18:26:36,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-28 18:26:36,496 INFO L87 Difference]: Start difference. First operand 24 states and 31 transitions. Second operand 4 states. [2019-11-28 18:26:36,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:26:36,539 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2019-11-28 18:26:36,540 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-28 18:26:36,540 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-11-28 18:26:36,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:26:36,541 INFO L225 Difference]: With dead ends: 23 [2019-11-28 18:26:36,541 INFO L226 Difference]: Without dead ends: 12 [2019-11-28 18:26:36,542 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-28 18:26:36,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-28 18:26:36,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-28 18:26:36,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-28 18:26:36,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-11-28 18:26:36,545 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 10 [2019-11-28 18:26:36,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:26:36,546 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-11-28 18:26:36,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-28 18:26:36,546 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-11-28 18:26:36,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-28 18:26:36,548 INFO L402 BasicCegarLoop]: Found error trace [2019-11-28 18:26:36,548 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 18:26:36,548 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-28 18:26:36,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 18:26:36,549 INFO L82 PathProgramCache]: Analyzing trace with hash 474055032, now seen corresponding path program 1 times [2019-11-28 18:26:36,549 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 18:26:36,550 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053384078] [2019-11-28 18:26:36,550 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 18:26:36,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 18:26:36,675 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 18:26:36,675 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053384078] [2019-11-28 18:26:36,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 18:26:36,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-28 18:26:36,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320006509] [2019-11-28 18:26:36,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-28 18:26:36,676 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 18:26:36,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-28 18:26:36,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-28 18:26:36,677 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 6 states. [2019-11-28 18:26:36,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 18:26:36,734 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2019-11-28 18:26:36,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-28 18:26:36,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-28 18:26:36,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-28 18:26:36,735 INFO L225 Difference]: With dead ends: 10 [2019-11-28 18:26:36,736 INFO L226 Difference]: Without dead ends: 0 [2019-11-28 18:26:36,736 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-11-28 18:26:36,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-28 18:26:36,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-28 18:26:36,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-28 18:26:36,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-28 18:26:36,737 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-28 18:26:36,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-28 18:26:36,737 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 18:26:36,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-28 18:26:36,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-28 18:26:36,738 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 18:26:36,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:26:36 BasicIcfg [2019-11-28 18:26:36,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 18:26:36,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 18:26:36,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 18:26:36,742 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 18:26:36,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:26:33" (3/4) ... [2019-11-28 18:26:36,747 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 18:26:36,754 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2019-11-28 18:26:36,754 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2019-11-28 18:26:36,755 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2019-11-28 18:26:36,760 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-28 18:26:36,760 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-28 18:26:36,760 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-28 18:26:36,809 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 18:26:36,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 18:26:36,812 INFO L168 Benchmark]: Toolchain (without parser) took 4125.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 953.7 MB in the beginning and 801.8 MB in the end (delta: 151.8 MB). Peak memory consumption was 264.0 MB. Max. memory is 11.5 GB. [2019-11-28 18:26:36,812 INFO L168 Benchmark]: CDTParser took 0.77 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:26:36,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 674.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -113.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2019-11-28 18:26:36,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:26:36,814 INFO L168 Benchmark]: Boogie Preprocessor took 40.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:26:36,815 INFO L168 Benchmark]: RCFGBuilder took 445.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2019-11-28 18:26:36,816 INFO L168 Benchmark]: TraceAbstraction took 2839.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 801.8 MB in the end (delta: 239.7 MB). Peak memory consumption was 239.7 MB. Max. memory is 11.5 GB. [2019-11-28 18:26:36,816 INFO L168 Benchmark]: Witness Printer took 67.80 ms. Allocated memory is still 1.1 GB. Free memory is still 801.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 18:26:36,819 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.77 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 674.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -113.8 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.53 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 445.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2839.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 801.8 MB in the end (delta: 239.7 MB). Peak memory consumption was 239.7 MB. Max. memory is 11.5 GB. * Witness Printer took 67.80 ms. Allocated memory is still 1.1 GB. Free memory is still 801.8 MB. 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: 1.5s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 230 VarBasedMoverChecksPositive, 11 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 12 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 44 TotalNumberOfCompositions - 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 34 SDtfs, 35 SDslu, 24 SDs, 0 SdLazy, 34 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 2079 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...