/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=48.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b665a9c [2020-09-29 14:39:20,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-29 14:39:20,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-29 14:39:20,430 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-29 14:39:20,431 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-29 14:39:20,432 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-29 14:39:20,434 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-29 14:39:20,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-29 14:39:20,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-29 14:39:20,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-29 14:39:20,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-29 14:39:20,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-29 14:39:20,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-29 14:39:20,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-29 14:39:20,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-29 14:39:20,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-29 14:39:20,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-29 14:39:20,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-29 14:39:20,451 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-29 14:39:20,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-29 14:39:20,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-29 14:39:20,456 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-29 14:39:20,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-29 14:39:20,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-29 14:39:20,462 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-29 14:39:20,462 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-29 14:39:20,463 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-29 14:39:20,464 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-29 14:39:20,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-29 14:39:20,465 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-29 14:39:20,466 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-29 14:39:20,467 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-29 14:39:20,468 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-29 14:39:20,469 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-29 14:39:20,470 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-29 14:39:20,471 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-29 14:39:20,472 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-29 14:39:20,472 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-29 14:39:20,472 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-29 14:39:20,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-29 14:39:20,474 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-29 14:39:20,475 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-09-29 14:39:20,508 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-29 14:39:20,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-29 14:39:20,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-29 14:39:20,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-29 14:39:20,512 INFO L138 SettingsManager]: * Use SBE=true [2020-09-29 14:39:20,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-29 14:39:20,513 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-29 14:39:20,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-29 14:39:20,514 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-29 14:39:20,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-29 14:39:20,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-29 14:39:20,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-29 14:39:20,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-29 14:39:20,515 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-29 14:39:20,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-29 14:39:20,515 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-29 14:39:20,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-29 14:39:20,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-29 14:39:20,517 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-29 14:39:20,518 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-29 14:39:20,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-29 14:39:20,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-29 14:39:20,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-29 14:39:20,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-29 14:39:20,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-29 14:39:20,520 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-09-29 14:39:20,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-29 14:39:20,520 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-09-29 14:39:20,520 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-09-29 14:39:20,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-29 14:39:21,029 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-29 14:39:21,047 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-29 14:39:21,052 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-29 14:39:21,053 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-09-29 14:39:21,054 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-09-29 14:39:21,056 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=48.bpl [2020-09-29 14:39:21,056 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=48.bpl' [2020-09-29 14:39:21,129 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-29 14:39:21,136 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-29 14:39:21,137 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-29 14:39:21,137 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-29 14:39:21,137 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-29 14:39:21,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:21" (1/1) ... [2020-09-29 14:39:21,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:21" (1/1) ... [2020-09-29 14:39:21,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-29 14:39:21,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-29 14:39:21,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-29 14:39:21,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-29 14:39:21,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:21" (1/1) ... [2020-09-29 14:39:21,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:21" (1/1) ... [2020-09-29 14:39:21,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:21" (1/1) ... [2020-09-29 14:39:21,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:21" (1/1) ... [2020-09-29 14:39:21,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:21" (1/1) ... [2020-09-29 14:39:21,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:21" (1/1) ... [2020-09-29 14:39:21,258 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:21" (1/1) ... [2020-09-29 14:39:21,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-29 14:39:21,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-29 14:39:21,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-29 14:39:21,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-29 14:39:21,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:21" (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 [2020-09-29 14:39:21,383 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread29 given in one single declaration [2020-09-29 14:39:21,384 INFO L130 BoogieDeclarations]: Found specification of procedure thread29 [2020-09-29 14:39:21,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread29 [2020-09-29 14:39:21,386 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread28 given in one single declaration [2020-09-29 14:39:21,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread28 [2020-09-29 14:39:21,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread28 [2020-09-29 14:39:21,387 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread25 given in one single declaration [2020-09-29 14:39:21,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread25 [2020-09-29 14:39:21,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread25 [2020-09-29 14:39:21,387 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread24 given in one single declaration [2020-09-29 14:39:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure thread24 [2020-09-29 14:39:21,388 INFO L138 BoogieDeclarations]: Found implementation of procedure thread24 [2020-09-29 14:39:21,388 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread27 given in one single declaration [2020-09-29 14:39:21,388 INFO L130 BoogieDeclarations]: Found specification of procedure thread27 [2020-09-29 14:39:21,388 INFO L138 BoogieDeclarations]: Found implementation of procedure thread27 [2020-09-29 14:39:21,389 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread26 given in one single declaration [2020-09-29 14:39:21,389 INFO L130 BoogieDeclarations]: Found specification of procedure thread26 [2020-09-29 14:39:21,389 INFO L138 BoogieDeclarations]: Found implementation of procedure thread26 [2020-09-29 14:39:21,390 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread21 given in one single declaration [2020-09-29 14:39:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread21 [2020-09-29 14:39:21,390 INFO L138 BoogieDeclarations]: Found implementation of procedure thread21 [2020-09-29 14:39:21,390 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread20 given in one single declaration [2020-09-29 14:39:21,390 INFO L130 BoogieDeclarations]: Found specification of procedure thread20 [2020-09-29 14:39:21,391 INFO L138 BoogieDeclarations]: Found implementation of procedure thread20 [2020-09-29 14:39:21,398 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread23 given in one single declaration [2020-09-29 14:39:21,399 INFO L130 BoogieDeclarations]: Found specification of procedure thread23 [2020-09-29 14:39:21,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread23 [2020-09-29 14:39:21,401 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread22 given in one single declaration [2020-09-29 14:39:21,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread22 [2020-09-29 14:39:21,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread22 [2020-09-29 14:39:21,401 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread39 given in one single declaration [2020-09-29 14:39:21,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread39 [2020-09-29 14:39:21,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread39 [2020-09-29 14:39:21,402 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2020-09-29 14:39:21,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-09-29 14:39:21,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-09-29 14:39:21,404 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2020-09-29 14:39:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-09-29 14:39:21,404 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-09-29 14:39:21,404 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2020-09-29 14:39:21,404 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-09-29 14:39:21,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-09-29 14:39:21,405 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2020-09-29 14:39:21,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2020-09-29 14:39:21,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2020-09-29 14:39:21,406 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2020-09-29 14:39:21,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2020-09-29 14:39:21,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2020-09-29 14:39:21,407 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2020-09-29 14:39:21,407 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2020-09-29 14:39:21,407 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2020-09-29 14:39:21,408 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2020-09-29 14:39:21,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2020-09-29 14:39:21,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2020-09-29 14:39:21,408 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2020-09-29 14:39:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2020-09-29 14:39:21,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2020-09-29 14:39:21,409 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread9 given in one single declaration [2020-09-29 14:39:21,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread9 [2020-09-29 14:39:21,410 INFO L138 BoogieDeclarations]: Found implementation of procedure thread9 [2020-09-29 14:39:21,410 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread30 given in one single declaration [2020-09-29 14:39:21,410 INFO L130 BoogieDeclarations]: Found specification of procedure thread30 [2020-09-29 14:39:21,410 INFO L138 BoogieDeclarations]: Found implementation of procedure thread30 [2020-09-29 14:39:21,410 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread36 given in one single declaration [2020-09-29 14:39:21,411 INFO L130 BoogieDeclarations]: Found specification of procedure thread36 [2020-09-29 14:39:21,411 INFO L138 BoogieDeclarations]: Found implementation of procedure thread36 [2020-09-29 14:39:21,412 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread35 given in one single declaration [2020-09-29 14:39:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread35 [2020-09-29 14:39:21,412 INFO L138 BoogieDeclarations]: Found implementation of procedure thread35 [2020-09-29 14:39:21,412 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread38 given in one single declaration [2020-09-29 14:39:21,412 INFO L130 BoogieDeclarations]: Found specification of procedure thread38 [2020-09-29 14:39:21,413 INFO L138 BoogieDeclarations]: Found implementation of procedure thread38 [2020-09-29 14:39:21,413 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread37 given in one single declaration [2020-09-29 14:39:21,414 INFO L130 BoogieDeclarations]: Found specification of procedure thread37 [2020-09-29 14:39:21,414 INFO L138 BoogieDeclarations]: Found implementation of procedure thread37 [2020-09-29 14:39:21,414 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread32 given in one single declaration [2020-09-29 14:39:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread32 [2020-09-29 14:39:21,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread32 [2020-09-29 14:39:21,415 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread31 given in one single declaration [2020-09-29 14:39:21,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread31 [2020-09-29 14:39:21,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread31 [2020-09-29 14:39:21,416 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread34 given in one single declaration [2020-09-29 14:39:21,416 INFO L130 BoogieDeclarations]: Found specification of procedure thread34 [2020-09-29 14:39:21,416 INFO L138 BoogieDeclarations]: Found implementation of procedure thread34 [2020-09-29 14:39:21,417 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread33 given in one single declaration [2020-09-29 14:39:21,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread33 [2020-09-29 14:39:21,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread33 [2020-09-29 14:39:21,418 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread41 given in one single declaration [2020-09-29 14:39:21,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread41 [2020-09-29 14:39:21,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread41 [2020-09-29 14:39:21,418 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread40 given in one single declaration [2020-09-29 14:39:21,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread40 [2020-09-29 14:39:21,419 INFO L138 BoogieDeclarations]: Found implementation of procedure thread40 [2020-09-29 14:39:21,419 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread47 given in one single declaration [2020-09-29 14:39:21,419 INFO L130 BoogieDeclarations]: Found specification of procedure thread47 [2020-09-29 14:39:21,419 INFO L138 BoogieDeclarations]: Found implementation of procedure thread47 [2020-09-29 14:39:21,419 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread46 given in one single declaration [2020-09-29 14:39:21,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread46 [2020-09-29 14:39:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread46 [2020-09-29 14:39:21,420 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread48 given in one single declaration [2020-09-29 14:39:21,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread48 [2020-09-29 14:39:21,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread48 [2020-09-29 14:39:21,420 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread43 given in one single declaration [2020-09-29 14:39:21,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread43 [2020-09-29 14:39:21,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread43 [2020-09-29 14:39:21,421 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread42 given in one single declaration [2020-09-29 14:39:21,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread42 [2020-09-29 14:39:21,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread42 [2020-09-29 14:39:21,423 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread45 given in one single declaration [2020-09-29 14:39:21,423 INFO L130 BoogieDeclarations]: Found specification of procedure thread45 [2020-09-29 14:39:21,426 INFO L138 BoogieDeclarations]: Found implementation of procedure thread45 [2020-09-29 14:39:21,426 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread44 given in one single declaration [2020-09-29 14:39:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure thread44 [2020-09-29 14:39:21,426 INFO L138 BoogieDeclarations]: Found implementation of procedure thread44 [2020-09-29 14:39:21,427 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread18 given in one single declaration [2020-09-29 14:39:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure thread18 [2020-09-29 14:39:21,427 INFO L138 BoogieDeclarations]: Found implementation of procedure thread18 [2020-09-29 14:39:21,427 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread17 given in one single declaration [2020-09-29 14:39:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure thread17 [2020-09-29 14:39:21,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread17 [2020-09-29 14:39:21,428 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread19 given in one single declaration [2020-09-29 14:39:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread19 [2020-09-29 14:39:21,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread19 [2020-09-29 14:39:21,428 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread14 given in one single declaration [2020-09-29 14:39:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread14 [2020-09-29 14:39:21,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thread14 [2020-09-29 14:39:21,429 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread13 given in one single declaration [2020-09-29 14:39:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure thread13 [2020-09-29 14:39:21,429 INFO L138 BoogieDeclarations]: Found implementation of procedure thread13 [2020-09-29 14:39:21,430 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-09-29 14:39:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-29 14:39:21,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-29 14:39:21,431 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread16 given in one single declaration [2020-09-29 14:39:21,431 INFO L130 BoogieDeclarations]: Found specification of procedure thread16 [2020-09-29 14:39:21,431 INFO L138 BoogieDeclarations]: Found implementation of procedure thread16 [2020-09-29 14:39:21,432 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread15 given in one single declaration [2020-09-29 14:39:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread15 [2020-09-29 14:39:21,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread15 [2020-09-29 14:39:21,433 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread10 given in one single declaration [2020-09-29 14:39:21,433 INFO L130 BoogieDeclarations]: Found specification of procedure thread10 [2020-09-29 14:39:21,433 INFO L138 BoogieDeclarations]: Found implementation of procedure thread10 [2020-09-29 14:39:21,434 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread12 given in one single declaration [2020-09-29 14:39:21,434 INFO L130 BoogieDeclarations]: Found specification of procedure thread12 [2020-09-29 14:39:21,434 INFO L138 BoogieDeclarations]: Found implementation of procedure thread12 [2020-09-29 14:39:21,435 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread11 given in one single declaration [2020-09-29 14:39:21,436 INFO L130 BoogieDeclarations]: Found specification of procedure thread11 [2020-09-29 14:39:21,436 INFO L138 BoogieDeclarations]: Found implementation of procedure thread11 [2020-09-29 14:39:21,439 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-29 14:39:21,983 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-29 14:39:21,984 INFO L298 CfgBuilder]: Removed 48 assume(true) statements. [2020-09-29 14:39:21,990 INFO L202 PluginConnector]: Adding new model example2_N=48.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:39:21 BoogieIcfgContainer [2020-09-29 14:39:21,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-29 14:39:21,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-29 14:39:21,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-29 14:39:21,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-29 14:39:21,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:21" (1/2) ... [2020-09-29 14:39:21,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@756ceaab and model type example2_N=48.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 02:39:21, skipping insertion in model container [2020-09-29 14:39:21,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=48.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:39:21" (2/2) ... [2020-09-29 14:39:21,999 INFO L109 eAbstractionObserver]: Analyzing ICFG example2_N=48.bpl [2020-09-29 14:39:22,011 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-29 14:39:22,022 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-29 14:39:22,023 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-29 14:39:22,973 INFO L251 AbstractCegarLoop]: Starting to check reachability of 49 error locations. [2020-09-29 14:39:23,003 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-29 14:39:23,003 INFO L376 AbstractCegarLoop]: Hoare is false [2020-09-29 14:39:23,004 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-29 14:39:23,004 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-29 14:39:23,004 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-29 14:39:23,004 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-29 14:39:23,004 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-29 14:39:23,004 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-29 14:39:23,030 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 341 places, 244 transitions, 872 flow [2020-09-29 14:39:23,218 INFO L129 PetriNetUnfolder]: 48/196 cut-off events. [2020-09-29 14:39:23,218 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-09-29 14:39:23,232 INFO L80 FinitePrefix]: Finished finitePrefix Result has 389 conditions, 196 events. 48/196 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 145 event pairs, 0 based on Foata normal form. 0/147 useless extension candidates. Maximal degree in co-relation 237. Up to 2 conditions per place. [2020-09-29 14:39:23,233 INFO L82 GeneralOperation]: Start removeDead. Operand has 341 places, 244 transitions, 872 flow [2020-09-29 14:39:23,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 291 places, 194 transitions, 676 flow [2020-09-29 14:39:23,343 INFO L129 PetriNetUnfolder]: 48/193 cut-off events. [2020-09-29 14:39:23,343 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-09-29 14:39:23,344 INFO L245 CegarLoopForPetriNet]: Found error trace [2020-09-29 14:39:23,345 INFO L253 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-29 14:39:23,346 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr27INUSE_VIOLATION, ULTIMATE.startErr44INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr23INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr25INUSE_VIOLATION, ULTIMATE.startErr46INUSE_VIOLATION, ULTIMATE.startErr31INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr33INUSE_VIOLATION, ULTIMATE.startErr29INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr36INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr38INUSE_VIOLATION, ULTIMATE.startErr17INUSE_VIOLATION, ULTIMATE.startErr34INUSE_VIOLATION, ULTIMATE.startErr15INUSE_VIOLATION, ULTIMATE.startErr19INUSE_VIOLATION, ULTIMATE.startErr42INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr21INUSE_VIOLATION, ULTIMATE.startErr40INUSE_VIOLATION, ULTIMATE.startErr47INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr26INUSE_VIOLATION, ULTIMATE.startErr45INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr24INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr32INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr28INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr30INUSE_VIOLATION, ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr37INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr16INUSE_VIOLATION, ULTIMATE.startErr35INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr18INUSE_VIOLATION, ULTIMATE.startErr43INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr22INUSE_VIOLATION, ULTIMATE.startErr39INUSE_VIOLATION, ULTIMATE.startErr20INUSE_VIOLATION, ULTIMATE.startErr41INUSE_VIOLATION]=== [2020-09-29 14:39:23,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-29 14:39:23,355 INFO L82 PathProgramCache]: Analyzing trace with hash -431866417, now seen corresponding path program 1 times [2020-09-29 14:39:23,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-09-29 14:39:23,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1142698051] [2020-09-29 14:39:23,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-09-29 14:39:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-29 14:39:24,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 4757 conjuncts, 2 conjunts are in the unsatisfiable core [2020-09-29 14:39:24,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-29 14:39:24,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-29 14:39:24,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-09-29 14:39:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-29 14:39:24,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1142698051] [2020-09-29 14:39:24,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-09-29 14:39:24,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-09-29 14:39:24,547 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268881715] [2020-09-29 14:39:24,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-29 14:39:24,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-09-29 14:39:24,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-29 14:39:24,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-29 14:39:24,588 INFO L503 CegarLoopForPetriNet]: Number of universal loopers: 193 out of 244 [2020-09-29 14:39:24,591 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 194 transitions, 676 flow. Second operand 3 states. [2020-09-29 14:39:24,592 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-09-29 14:39:24,592 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 193 of 244 [2020-09-29 14:39:24,594 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-09-29 14:39:24,799 INFO L129 PetriNetUnfolder]: 48/193 cut-off events. [2020-09-29 14:39:24,800 INFO L130 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2020-09-29 14:39:24,804 INFO L80 FinitePrefix]: Finished finitePrefix Result has 436 conditions, 193 events. 48/193 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 138 event pairs, 0 based on Foata normal form. 1/194 useless extension candidates. Maximal degree in co-relation 285. Up to 49 conditions per place. [2020-09-29 14:39:24,806 INFO L132 encePairwiseOnDemand]: 242/244 looper letters, 0 selfloop transitions, 0 changer transitions 193/193 dead transitions. [2020-09-29 14:39:24,807 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 292 places, 193 transitions, 772 flow [2020-09-29 14:39:24,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-29 14:39:24,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-09-29 14:39:24,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 629 transitions. [2020-09-29 14:39:24,832 INFO L550 CegarLoopForPetriNet]: DFA transition density 0.8592896174863388 [2020-09-29 14:39:24,833 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 629 transitions. [2020-09-29 14:39:24,834 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 629 transitions. [2020-09-29 14:39:24,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-09-29 14:39:24,841 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 629 transitions. [2020-09-29 14:39:24,847 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-09-29 14:39:24,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-09-29 14:39:24,858 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-09-29 14:39:24,861 INFO L185 Difference]: Start difference. First operand has 291 places, 194 transitions, 676 flow. Second operand 3 states and 629 transitions. [2020-09-29 14:39:24,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 292 places, 193 transitions, 772 flow [2020-09-29 14:39:24,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 193 transitions, 580 flow, removed 0 selfloop flow, removed 96 redundant places. [2020-09-29 14:39:24,878 INFO L241 Difference]: Finished difference. Result has 196 places, 0 transitions, 0 flow [2020-09-29 14:39:24,882 INFO L321 CegarLoopForPetriNet]: {PETRI_ALPHABET=244, PETRI_DIFFERENCE_MINUEND_FLOW=482, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=193, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=196, PETRI_TRANSITIONS=0} [2020-09-29 14:39:24,883 INFO L337 CegarLoopForPetriNet]: 291 programPoint places, -95 predicate places. [2020-09-29 14:39:24,884 INFO L479 AbstractCegarLoop]: Abstraction has has 196 places, 0 transitions, 0 flow [2020-09-29 14:39:24,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-29 14:39:25,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-09-29 14:39:25,106 INFO L202 PluginConnector]: Adding new model example2_N=48.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.09 02:39:25 BasicIcfg [2020-09-29 14:39:25,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-29 14:39:25,110 INFO L168 Benchmark]: Toolchain (without parser) took 3977.83 ms. Allocated memory was 252.2 MB in the beginning and 417.3 MB in the end (delta: 165.2 MB). Free memory was 226.0 MB in the beginning and 216.0 MB in the end (delta: 10.0 MB). Peak memory consumption was 175.2 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:25,111 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.53 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-09-29 14:39:25,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.28 ms. Allocated memory is still 252.2 MB. Free memory was 226.0 MB in the beginning and 223.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:25,113 INFO L168 Benchmark]: Boogie Preprocessor took 86.96 ms. Allocated memory is still 252.2 MB. Free memory was 223.5 MB in the beginning and 221.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:25,113 INFO L168 Benchmark]: RCFGBuilder took 714.18 ms. Allocated memory is still 252.2 MB. Free memory was 221.0 MB in the beginning and 183.1 MB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:25,115 INFO L168 Benchmark]: TraceAbstraction took 3115.01 ms. Allocated memory was 252.2 MB in the beginning and 417.3 MB in the end (delta: 165.2 MB). Free memory was 183.1 MB in the beginning and 216.0 MB in the end (delta: -32.9 MB). Peak memory consumption was 132.2 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:25,119 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.53 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 51.28 ms. Allocated memory is still 252.2 MB. Free memory was 226.0 MB in the beginning and 223.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 86.96 ms. Allocated memory is still 252.2 MB. Free memory was 223.5 MB in the beginning and 221.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 714.18 ms. Allocated memory is still 252.2 MB. Free memory was 221.0 MB in the beginning and 183.1 MB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3115.01 ms. Allocated memory was 252.2 MB in the beginning and 417.3 MB in the end (delta: 165.2 MB). Free memory was 183.1 MB in the beginning and 216.0 MB in the end (delta: -32.9 MB). Peak memory consumption was 132.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 49 procedures, 197 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 48 SolverSat, 48 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 290 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=676occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 146 NumberOfCodeBlocks, 146 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 290 ConstructedInterpolants, 0 QuantifiedInterpolants, 126150 SizeOfPredicates, 0 NumberOfNonLiveVariables, 4757 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...