/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=54.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b665a9c [2020-09-29 14:39:27,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-29 14:39:27,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-29 14:39:27,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-29 14:39:27,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-29 14:39:27,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-29 14:39:27,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-29 14:39:27,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-29 14:39:27,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-29 14:39:27,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-29 14:39:27,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-29 14:39:27,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-29 14:39:27,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-29 14:39:27,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-29 14:39:27,435 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-29 14:39:27,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-29 14:39:27,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-29 14:39:27,439 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-29 14:39:27,441 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-29 14:39:27,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-29 14:39:27,445 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-29 14:39:27,447 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-29 14:39:27,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-29 14:39:27,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-29 14:39:27,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-29 14:39:27,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-29 14:39:27,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-29 14:39:27,463 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-29 14:39:27,464 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-29 14:39:27,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-29 14:39:27,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-29 14:39:27,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-29 14:39:27,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-29 14:39:27,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-29 14:39:27,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-29 14:39:27,472 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-29 14:39:27,473 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-29 14:39:27,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-29 14:39:27,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-29 14:39:27,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-29 14:39:27,476 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-29 14:39:27,477 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 14:39:27,505 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-29 14:39:27,506 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-29 14:39:27,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-29 14:39:27,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-29 14:39:27,508 INFO L138 SettingsManager]: * Use SBE=true [2020-09-29 14:39:27,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-29 14:39:27,508 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-29 14:39:27,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-29 14:39:27,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-29 14:39:27,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-29 14:39:27,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-29 14:39:27,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-29 14:39:27,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-29 14:39:27,510 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-29 14:39:27,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-29 14:39:27,510 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-29 14:39:27,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-29 14:39:27,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-29 14:39:27,511 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-29 14:39:27,511 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-29 14:39:27,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-29 14:39:27,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-29 14:39:27,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-29 14:39:27,512 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-29 14:39:27,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-29 14:39:27,512 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-09-29 14:39:27,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-29 14:39:27,512 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-09-29 14:39:27,513 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-09-29 14:39:27,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-29 14:39:27,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-29 14:39:28,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-29 14:39:28,017 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-29 14:39:28,019 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-09-29 14:39:28,020 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-09-29 14:39:28,021 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=54.bpl [2020-09-29 14:39:28,022 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=54.bpl' [2020-09-29 14:39:28,099 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-29 14:39:28,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-29 14:39:28,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-29 14:39:28,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-29 14:39:28,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-29 14:39:28,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:28" (1/1) ... [2020-09-29 14:39:28,150 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:28" (1/1) ... [2020-09-29 14:39:28,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-29 14:39:28,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-29 14:39:28,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-29 14:39:28,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-29 14:39:28,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:28" (1/1) ... [2020-09-29 14:39:28,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:28" (1/1) ... [2020-09-29 14:39:28,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:28" (1/1) ... [2020-09-29 14:39:28,186 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:28" (1/1) ... [2020-09-29 14:39:28,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:28" (1/1) ... [2020-09-29 14:39:28,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:28" (1/1) ... [2020-09-29 14:39:28,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:28" (1/1) ... [2020-09-29 14:39:28,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-29 14:39:28,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-29 14:39:28,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-29 14:39:28,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-29 14:39:28,230 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:28" (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 14:39:28,322 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread29 given in one single declaration [2020-09-29 14:39:28,323 INFO L130 BoogieDeclarations]: Found specification of procedure thread29 [2020-09-29 14:39:28,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread29 [2020-09-29 14:39:28,325 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread28 given in one single declaration [2020-09-29 14:39:28,325 INFO L130 BoogieDeclarations]: Found specification of procedure thread28 [2020-09-29 14:39:28,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thread28 [2020-09-29 14:39:28,326 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread25 given in one single declaration [2020-09-29 14:39:28,326 INFO L130 BoogieDeclarations]: Found specification of procedure thread25 [2020-09-29 14:39:28,326 INFO L138 BoogieDeclarations]: Found implementation of procedure thread25 [2020-09-29 14:39:28,326 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread24 given in one single declaration [2020-09-29 14:39:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread24 [2020-09-29 14:39:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread24 [2020-09-29 14:39:28,327 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread27 given in one single declaration [2020-09-29 14:39:28,327 INFO L130 BoogieDeclarations]: Found specification of procedure thread27 [2020-09-29 14:39:28,327 INFO L138 BoogieDeclarations]: Found implementation of procedure thread27 [2020-09-29 14:39:28,328 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread26 given in one single declaration [2020-09-29 14:39:28,328 INFO L130 BoogieDeclarations]: Found specification of procedure thread26 [2020-09-29 14:39:28,328 INFO L138 BoogieDeclarations]: Found implementation of procedure thread26 [2020-09-29 14:39:28,329 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread21 given in one single declaration [2020-09-29 14:39:28,329 INFO L130 BoogieDeclarations]: Found specification of procedure thread21 [2020-09-29 14:39:28,330 INFO L138 BoogieDeclarations]: Found implementation of procedure thread21 [2020-09-29 14:39:28,330 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread20 given in one single declaration [2020-09-29 14:39:28,330 INFO L130 BoogieDeclarations]: Found specification of procedure thread20 [2020-09-29 14:39:28,331 INFO L138 BoogieDeclarations]: Found implementation of procedure thread20 [2020-09-29 14:39:28,339 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread23 given in one single declaration [2020-09-29 14:39:28,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread23 [2020-09-29 14:39:28,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread23 [2020-09-29 14:39:28,342 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread22 given in one single declaration [2020-09-29 14:39:28,342 INFO L130 BoogieDeclarations]: Found specification of procedure thread22 [2020-09-29 14:39:28,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thread22 [2020-09-29 14:39:28,343 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread39 given in one single declaration [2020-09-29 14:39:28,343 INFO L130 BoogieDeclarations]: Found specification of procedure thread39 [2020-09-29 14:39:28,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thread39 [2020-09-29 14:39:28,344 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2020-09-29 14:39:28,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-09-29 14:39:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-09-29 14:39:28,345 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2020-09-29 14:39:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-09-29 14:39:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-09-29 14:39:28,346 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2020-09-29 14:39:28,346 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-09-29 14:39:28,346 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-09-29 14:39:28,347 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2020-09-29 14:39:28,347 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2020-09-29 14:39:28,347 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2020-09-29 14:39:28,347 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2020-09-29 14:39:28,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2020-09-29 14:39:28,348 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2020-09-29 14:39:28,348 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2020-09-29 14:39:28,348 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2020-09-29 14:39:28,349 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2020-09-29 14:39:28,349 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2020-09-29 14:39:28,349 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2020-09-29 14:39:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2020-09-29 14:39:28,350 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2020-09-29 14:39:28,350 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2020-09-29 14:39:28,350 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2020-09-29 14:39:28,351 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread9 given in one single declaration [2020-09-29 14:39:28,351 INFO L130 BoogieDeclarations]: Found specification of procedure thread9 [2020-09-29 14:39:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure thread9 [2020-09-29 14:39:28,352 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread30 given in one single declaration [2020-09-29 14:39:28,352 INFO L130 BoogieDeclarations]: Found specification of procedure thread30 [2020-09-29 14:39:28,352 INFO L138 BoogieDeclarations]: Found implementation of procedure thread30 [2020-09-29 14:39:28,353 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread36 given in one single declaration [2020-09-29 14:39:28,353 INFO L130 BoogieDeclarations]: Found specification of procedure thread36 [2020-09-29 14:39:28,353 INFO L138 BoogieDeclarations]: Found implementation of procedure thread36 [2020-09-29 14:39:28,354 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread35 given in one single declaration [2020-09-29 14:39:28,354 INFO L130 BoogieDeclarations]: Found specification of procedure thread35 [2020-09-29 14:39:28,354 INFO L138 BoogieDeclarations]: Found implementation of procedure thread35 [2020-09-29 14:39:28,355 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread38 given in one single declaration [2020-09-29 14:39:28,355 INFO L130 BoogieDeclarations]: Found specification of procedure thread38 [2020-09-29 14:39:28,355 INFO L138 BoogieDeclarations]: Found implementation of procedure thread38 [2020-09-29 14:39:28,356 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread37 given in one single declaration [2020-09-29 14:39:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure thread37 [2020-09-29 14:39:28,356 INFO L138 BoogieDeclarations]: Found implementation of procedure thread37 [2020-09-29 14:39:28,356 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread32 given in one single declaration [2020-09-29 14:39:28,356 INFO L130 BoogieDeclarations]: Found specification of procedure thread32 [2020-09-29 14:39:28,357 INFO L138 BoogieDeclarations]: Found implementation of procedure thread32 [2020-09-29 14:39:28,357 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread31 given in one single declaration [2020-09-29 14:39:28,357 INFO L130 BoogieDeclarations]: Found specification of procedure thread31 [2020-09-29 14:39:28,357 INFO L138 BoogieDeclarations]: Found implementation of procedure thread31 [2020-09-29 14:39:28,357 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread34 given in one single declaration [2020-09-29 14:39:28,358 INFO L130 BoogieDeclarations]: Found specification of procedure thread34 [2020-09-29 14:39:28,358 INFO L138 BoogieDeclarations]: Found implementation of procedure thread34 [2020-09-29 14:39:28,358 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread33 given in one single declaration [2020-09-29 14:39:28,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread33 [2020-09-29 14:39:28,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread33 [2020-09-29 14:39:28,360 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread41 given in one single declaration [2020-09-29 14:39:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure thread41 [2020-09-29 14:39:28,360 INFO L138 BoogieDeclarations]: Found implementation of procedure thread41 [2020-09-29 14:39:28,360 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread40 given in one single declaration [2020-09-29 14:39:28,360 INFO L130 BoogieDeclarations]: Found specification of procedure thread40 [2020-09-29 14:39:28,361 INFO L138 BoogieDeclarations]: Found implementation of procedure thread40 [2020-09-29 14:39:28,361 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread47 given in one single declaration [2020-09-29 14:39:28,361 INFO L130 BoogieDeclarations]: Found specification of procedure thread47 [2020-09-29 14:39:28,361 INFO L138 BoogieDeclarations]: Found implementation of procedure thread47 [2020-09-29 14:39:28,362 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread46 given in one single declaration [2020-09-29 14:39:28,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread46 [2020-09-29 14:39:28,362 INFO L138 BoogieDeclarations]: Found implementation of procedure thread46 [2020-09-29 14:39:28,362 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread49 given in one single declaration [2020-09-29 14:39:28,362 INFO L130 BoogieDeclarations]: Found specification of procedure thread49 [2020-09-29 14:39:28,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread49 [2020-09-29 14:39:28,363 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread48 given in one single declaration [2020-09-29 14:39:28,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread48 [2020-09-29 14:39:28,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread48 [2020-09-29 14:39:28,364 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread43 given in one single declaration [2020-09-29 14:39:28,364 INFO L130 BoogieDeclarations]: Found specification of procedure thread43 [2020-09-29 14:39:28,364 INFO L138 BoogieDeclarations]: Found implementation of procedure thread43 [2020-09-29 14:39:28,365 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread42 given in one single declaration [2020-09-29 14:39:28,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread42 [2020-09-29 14:39:28,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread42 [2020-09-29 14:39:28,369 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread45 given in one single declaration [2020-09-29 14:39:28,369 INFO L130 BoogieDeclarations]: Found specification of procedure thread45 [2020-09-29 14:39:28,369 INFO L138 BoogieDeclarations]: Found implementation of procedure thread45 [2020-09-29 14:39:28,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread44 given in one single declaration [2020-09-29 14:39:28,370 INFO L130 BoogieDeclarations]: Found specification of procedure thread44 [2020-09-29 14:39:28,370 INFO L138 BoogieDeclarations]: Found implementation of procedure thread44 [2020-09-29 14:39:28,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread18 given in one single declaration [2020-09-29 14:39:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread18 [2020-09-29 14:39:28,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread18 [2020-09-29 14:39:28,371 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread17 given in one single declaration [2020-09-29 14:39:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure thread17 [2020-09-29 14:39:28,371 INFO L138 BoogieDeclarations]: Found implementation of procedure thread17 [2020-09-29 14:39:28,372 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread19 given in one single declaration [2020-09-29 14:39:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure thread19 [2020-09-29 14:39:28,372 INFO L138 BoogieDeclarations]: Found implementation of procedure thread19 [2020-09-29 14:39:28,372 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread50 given in one single declaration [2020-09-29 14:39:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure thread50 [2020-09-29 14:39:28,373 INFO L138 BoogieDeclarations]: Found implementation of procedure thread50 [2020-09-29 14:39:28,373 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread52 given in one single declaration [2020-09-29 14:39:28,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread52 [2020-09-29 14:39:28,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread52 [2020-09-29 14:39:28,375 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread51 given in one single declaration [2020-09-29 14:39:28,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread51 [2020-09-29 14:39:28,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thread51 [2020-09-29 14:39:28,376 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread14 given in one single declaration [2020-09-29 14:39:28,377 INFO L130 BoogieDeclarations]: Found specification of procedure thread14 [2020-09-29 14:39:28,377 INFO L138 BoogieDeclarations]: Found implementation of procedure thread14 [2020-09-29 14:39:28,377 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread13 given in one single declaration [2020-09-29 14:39:28,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread13 [2020-09-29 14:39:28,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread13 [2020-09-29 14:39:28,378 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-09-29 14:39:28,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-29 14:39:28,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-29 14:39:28,379 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread16 given in one single declaration [2020-09-29 14:39:28,380 INFO L130 BoogieDeclarations]: Found specification of procedure thread16 [2020-09-29 14:39:28,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread16 [2020-09-29 14:39:28,381 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread15 given in one single declaration [2020-09-29 14:39:28,381 INFO L130 BoogieDeclarations]: Found specification of procedure thread15 [2020-09-29 14:39:28,381 INFO L138 BoogieDeclarations]: Found implementation of procedure thread15 [2020-09-29 14:39:28,382 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread54 given in one single declaration [2020-09-29 14:39:28,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread54 [2020-09-29 14:39:28,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread54 [2020-09-29 14:39:28,387 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread10 given in one single declaration [2020-09-29 14:39:28,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread10 [2020-09-29 14:39:28,393 INFO L138 BoogieDeclarations]: Found implementation of procedure thread10 [2020-09-29 14:39:28,394 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread53 given in one single declaration [2020-09-29 14:39:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure thread53 [2020-09-29 14:39:28,394 INFO L138 BoogieDeclarations]: Found implementation of procedure thread53 [2020-09-29 14:39:28,394 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread12 given in one single declaration [2020-09-29 14:39:28,394 INFO L130 BoogieDeclarations]: Found specification of procedure thread12 [2020-09-29 14:39:28,395 INFO L138 BoogieDeclarations]: Found implementation of procedure thread12 [2020-09-29 14:39:28,395 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread11 given in one single declaration [2020-09-29 14:39:28,395 INFO L130 BoogieDeclarations]: Found specification of procedure thread11 [2020-09-29 14:39:28,395 INFO L138 BoogieDeclarations]: Found implementation of procedure thread11 [2020-09-29 14:39:28,398 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 14:39:28,998 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-29 14:39:28,999 INFO L298 CfgBuilder]: Removed 54 assume(true) statements. [2020-09-29 14:39:29,006 INFO L202 PluginConnector]: Adding new model example2_N=54.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:39:29 BoogieIcfgContainer [2020-09-29 14:39:29,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-29 14:39:29,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-29 14:39:29,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-29 14:39:29,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-29 14:39:29,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:28" (1/2) ... [2020-09-29 14:39:29,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d3596bc and model type example2_N=54.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 02:39:29, skipping insertion in model container [2020-09-29 14:39:29,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=54.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:39:29" (2/2) ... [2020-09-29 14:39:29,016 INFO L109 eAbstractionObserver]: Analyzing ICFG example2_N=54.bpl [2020-09-29 14:39:29,028 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-29 14:39:29,040 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-29 14:39:29,041 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-29 14:39:30,239 INFO L251 AbstractCegarLoop]: Starting to check reachability of 55 error locations. [2020-09-29 14:39:30,269 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-29 14:39:30,269 INFO L376 AbstractCegarLoop]: Hoare is false [2020-09-29 14:39:30,269 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-29 14:39:30,269 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-29 14:39:30,269 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-29 14:39:30,270 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-29 14:39:30,270 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-29 14:39:30,270 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-29 14:39:30,298 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 383 places, 274 transitions, 980 flow [2020-09-29 14:39:30,466 INFO L129 PetriNetUnfolder]: 54/220 cut-off events. [2020-09-29 14:39:30,466 INFO L130 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2020-09-29 14:39:30,483 INFO L80 FinitePrefix]: Finished finitePrefix Result has 437 conditions, 220 events. 54/220 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 153 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 267. Up to 2 conditions per place. [2020-09-29 14:39:30,483 INFO L82 GeneralOperation]: Start removeDead. Operand has 383 places, 274 transitions, 980 flow [2020-09-29 14:39:30,500 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 327 places, 218 transitions, 760 flow [2020-09-29 14:39:30,655 INFO L129 PetriNetUnfolder]: 54/217 cut-off events. [2020-09-29 14:39:30,656 INFO L130 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2020-09-29 14:39:30,656 INFO L245 CegarLoopForPetriNet]: Found error trace [2020-09-29 14:39:30,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-29 14:39:30,658 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr27INUSE_VIOLATION, ULTIMATE.startErr48INUSE_VIOLATION, ULTIMATE.startErr44INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr23INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr25INUSE_VIOLATION, ULTIMATE.startErr46INUSE_VIOLATION, ULTIMATE.startErr31INUSE_VIOLATION, ULTIMATE.startErr52INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr33INUSE_VIOLATION, ULTIMATE.startErr29INUSE_VIOLATION, ULTIMATE.startErr50INUSE_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.startErr49INUSE_VIOLATION, ULTIMATE.startErr45INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr24INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr53INUSE_VIOLATION, ULTIMATE.startErr32INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr28INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr51INUSE_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 14:39:30,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-29 14:39:30,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1983541629, now seen corresponding path program 1 times [2020-09-29 14:39:30,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-09-29 14:39:30,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1098081740] [2020-09-29 14:39:30,689 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 14:39:31,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-29 14:39:31,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 5999 conjuncts, 2 conjunts are in the unsatisfiable core [2020-09-29 14:39:31,885 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-29 14:39:32,015 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 14:39:32,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-09-29 14:39:32,117 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 14:39:32,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1098081740] [2020-09-29 14:39:32,120 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-09-29 14:39:32,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-09-29 14:39:32,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989260340] [2020-09-29 14:39:32,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-29 14:39:32,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-09-29 14:39:32,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-29 14:39:32,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-29 14:39:32,165 INFO L503 CegarLoopForPetriNet]: Number of universal loopers: 217 out of 274 [2020-09-29 14:39:32,170 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 327 places, 218 transitions, 760 flow. Second operand 3 states. [2020-09-29 14:39:32,170 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-09-29 14:39:32,170 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 217 of 274 [2020-09-29 14:39:32,171 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-09-29 14:39:32,492 INFO L129 PetriNetUnfolder]: 54/217 cut-off events. [2020-09-29 14:39:32,492 INFO L130 PetriNetUnfolder]: For 54/54 co-relation queries the response was YES. [2020-09-29 14:39:32,497 INFO L80 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 217 events. 54/217 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 148 event pairs, 0 based on Foata normal form. 1/218 useless extension candidates. Maximal degree in co-relation 321. Up to 55 conditions per place. [2020-09-29 14:39:32,499 INFO L132 encePairwiseOnDemand]: 272/274 looper letters, 0 selfloop transitions, 0 changer transitions 217/217 dead transitions. [2020-09-29 14:39:32,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 328 places, 217 transitions, 868 flow [2020-09-29 14:39:32,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-29 14:39:32,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-09-29 14:39:32,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 707 transitions. [2020-09-29 14:39:32,524 INFO L550 CegarLoopForPetriNet]: DFA transition density 0.8600973236009732 [2020-09-29 14:39:32,525 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 707 transitions. [2020-09-29 14:39:32,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 707 transitions. [2020-09-29 14:39:32,530 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-09-29 14:39:32,534 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 707 transitions. [2020-09-29 14:39:32,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-09-29 14:39:32,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-09-29 14:39:32,552 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-09-29 14:39:32,556 INFO L185 Difference]: Start difference. First operand has 327 places, 218 transitions, 760 flow. Second operand 3 states and 707 transitions. [2020-09-29 14:39:32,558 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 328 places, 217 transitions, 868 flow [2020-09-29 14:39:32,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 217 transitions, 652 flow, removed 0 selfloop flow, removed 108 redundant places. [2020-09-29 14:39:32,582 INFO L241 Difference]: Finished difference. Result has 220 places, 0 transitions, 0 flow [2020-09-29 14:39:32,587 INFO L321 CegarLoopForPetriNet]: {PETRI_ALPHABET=274, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=217, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=217, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=220, PETRI_TRANSITIONS=0} [2020-09-29 14:39:32,588 INFO L337 CegarLoopForPetriNet]: 327 programPoint places, -107 predicate places. [2020-09-29 14:39:32,588 INFO L479 AbstractCegarLoop]: Abstraction has has 220 places, 0 transitions, 0 flow [2020-09-29 14:39:32,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-29 14:39:32,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-09-29 14:39:32,811 INFO L202 PluginConnector]: Adding new model example2_N=54.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.09 02:39:32 BasicIcfg [2020-09-29 14:39:32,812 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-29 14:39:32,815 INFO L168 Benchmark]: Toolchain (without parser) took 4713.22 ms. Allocated memory was 246.9 MB in the beginning and 444.6 MB in the end (delta: 197.7 MB). Free memory was 220.8 MB in the beginning and 376.6 MB in the end (delta: -155.8 MB). Peak memory consumption was 337.6 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:32,816 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.33 ms. Allocated memory is still 246.9 MB. Free memory is still 223.3 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-09-29 14:39:32,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.90 ms. Allocated memory is still 246.9 MB. Free memory was 220.8 MB in the beginning and 218.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:32,818 INFO L168 Benchmark]: Boogie Preprocessor took 61.92 ms. Allocated memory is still 246.9 MB. Free memory was 218.3 MB in the beginning and 215.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:32,819 INFO L168 Benchmark]: RCFGBuilder took 777.89 ms. Allocated memory is still 246.9 MB. Free memory was 215.8 MB in the beginning and 175.4 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:32,820 INFO L168 Benchmark]: TraceAbstraction took 3804.00 ms. Allocated memory was 246.9 MB in the beginning and 444.6 MB in the end (delta: 197.7 MB). Free memory was 175.4 MB in the beginning and 376.6 MB in the end (delta: -201.1 MB). Peak memory consumption was 292.3 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:32,824 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 0.33 ms. Allocated memory is still 246.9 MB. Free memory is still 223.3 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 58.90 ms. Allocated memory is still 246.9 MB. Free memory was 220.8 MB in the beginning and 218.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 61.92 ms. Allocated memory is still 246.9 MB. Free memory was 218.3 MB in the beginning and 215.8 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 777.89 ms. Allocated memory is still 246.9 MB. Free memory was 215.8 MB in the beginning and 175.4 MB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3804.00 ms. Allocated memory was 246.9 MB in the beginning and 444.6 MB in the end (delta: 197.7 MB). Free memory was 175.4 MB in the beginning and 376.6 MB in the end (delta: -201.1 MB). Peak memory consumption was 292.3 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 118]: 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 55 procedures, 221 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 54 SolverSat, 54 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 326 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=760occurred 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: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 326 ConstructedInterpolants, 0 QuantifiedInterpolants, 159414 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5999 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...