/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=25.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b665a9c [2020-09-29 14:39:05,431 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-29 14:39:05,436 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-29 14:39:05,480 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-29 14:39:05,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-29 14:39:05,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-29 14:39:05,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-29 14:39:05,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-29 14:39:05,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-29 14:39:05,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-29 14:39:05,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-29 14:39:05,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-29 14:39:05,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-29 14:39:05,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-29 14:39:05,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-29 14:39:05,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-29 14:39:05,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-29 14:39:05,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-29 14:39:05,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-29 14:39:05,523 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-29 14:39:05,525 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-29 14:39:05,526 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-29 14:39:05,527 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-29 14:39:05,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-29 14:39:05,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-29 14:39:05,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-29 14:39:05,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-29 14:39:05,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-29 14:39:05,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-29 14:39:05,549 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-29 14:39:05,549 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-29 14:39:05,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-29 14:39:05,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-29 14:39:05,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-29 14:39:05,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-29 14:39:05,559 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-29 14:39:05,560 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-29 14:39:05,560 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-29 14:39:05,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-29 14:39:05,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-29 14:39:05,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-29 14:39:05,564 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 14:39:05,608 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-29 14:39:05,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-29 14:39:05,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-29 14:39:05,611 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-29 14:39:05,611 INFO L138 SettingsManager]: * Use SBE=true [2020-09-29 14:39:05,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-29 14:39:05,611 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-29 14:39:05,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-29 14:39:05,612 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-29 14:39:05,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-29 14:39:05,613 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-29 14:39:05,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-29 14:39:05,613 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-29 14:39:05,614 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-29 14:39:05,614 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-29 14:39:05,614 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-29 14:39:05,614 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-29 14:39:05,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-29 14:39:05,615 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-29 14:39:05,615 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-29 14:39:05,615 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-29 14:39:05,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-29 14:39:05,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-29 14:39:05,616 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-29 14:39:05,616 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-29 14:39:05,616 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-09-29 14:39:05,616 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-29 14:39:05,616 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-09-29 14:39:05,617 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-09-29 14:39:05,617 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-29 14:39:06,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-29 14:39:06,131 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-29 14:39:06,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-29 14:39:06,138 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-09-29 14:39:06,139 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-09-29 14:39:06,141 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=25.bpl [2020-09-29 14:39:06,143 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=25.bpl' [2020-09-29 14:39:06,219 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-29 14:39:06,226 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-29 14:39:06,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-29 14:39:06,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-29 14:39:06,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-29 14:39:06,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:06" (1/1) ... [2020-09-29 14:39:06,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:06" (1/1) ... [2020-09-29 14:39:06,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-29 14:39:06,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-29 14:39:06,286 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-29 14:39:06,286 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-29 14:39:06,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:06" (1/1) ... [2020-09-29 14:39:06,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:06" (1/1) ... [2020-09-29 14:39:06,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:06" (1/1) ... [2020-09-29 14:39:06,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:06" (1/1) ... [2020-09-29 14:39:06,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:06" (1/1) ... [2020-09-29 14:39:06,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:06" (1/1) ... [2020-09-29 14:39:06,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:06" (1/1) ... [2020-09-29 14:39:06,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-29 14:39:06,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-29 14:39:06,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-29 14:39:06,362 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-29 14:39:06,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:06" (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 14:39:06,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread25 given in one single declaration [2020-09-29 14:39:06,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread25 [2020-09-29 14:39:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread25 [2020-09-29 14:39:06,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread24 given in one single declaration [2020-09-29 14:39:06,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread24 [2020-09-29 14:39:06,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread24 [2020-09-29 14:39:06,464 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread21 given in one single declaration [2020-09-29 14:39:06,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread21 [2020-09-29 14:39:06,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread21 [2020-09-29 14:39:06,464 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread20 given in one single declaration [2020-09-29 14:39:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread20 [2020-09-29 14:39:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread20 [2020-09-29 14:39:06,465 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread23 given in one single declaration [2020-09-29 14:39:06,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread23 [2020-09-29 14:39:06,465 INFO L138 BoogieDeclarations]: Found implementation of procedure thread23 [2020-09-29 14:39:06,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread22 given in one single declaration [2020-09-29 14:39:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread22 [2020-09-29 14:39:06,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread22 [2020-09-29 14:39:06,466 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread18 given in one single declaration [2020-09-29 14:39:06,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread18 [2020-09-29 14:39:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread18 [2020-09-29 14:39:06,467 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread17 given in one single declaration [2020-09-29 14:39:06,467 INFO L130 BoogieDeclarations]: Found specification of procedure thread17 [2020-09-29 14:39:06,467 INFO L138 BoogieDeclarations]: Found implementation of procedure thread17 [2020-09-29 14:39:06,468 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread19 given in one single declaration [2020-09-29 14:39:06,468 INFO L130 BoogieDeclarations]: Found specification of procedure thread19 [2020-09-29 14:39:06,468 INFO L138 BoogieDeclarations]: Found implementation of procedure thread19 [2020-09-29 14:39:06,468 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2020-09-29 14:39:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-09-29 14:39:06,469 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-09-29 14:39:06,469 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2020-09-29 14:39:06,469 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-09-29 14:39:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-09-29 14:39:06,470 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2020-09-29 14:39:06,470 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-09-29 14:39:06,470 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-09-29 14:39:06,471 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2020-09-29 14:39:06,471 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2020-09-29 14:39:06,471 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2020-09-29 14:39:06,471 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2020-09-29 14:39:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2020-09-29 14:39:06,472 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2020-09-29 14:39:06,472 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2020-09-29 14:39:06,472 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2020-09-29 14:39:06,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2020-09-29 14:39:06,473 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2020-09-29 14:39:06,473 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2020-09-29 14:39:06,473 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2020-09-29 14:39:06,473 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2020-09-29 14:39:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2020-09-29 14:39:06,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2020-09-29 14:39:06,474 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread9 given in one single declaration [2020-09-29 14:39:06,474 INFO L130 BoogieDeclarations]: Found specification of procedure thread9 [2020-09-29 14:39:06,474 INFO L138 BoogieDeclarations]: Found implementation of procedure thread9 [2020-09-29 14:39:06,475 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread14 given in one single declaration [2020-09-29 14:39:06,475 INFO L130 BoogieDeclarations]: Found specification of procedure thread14 [2020-09-29 14:39:06,475 INFO L138 BoogieDeclarations]: Found implementation of procedure thread14 [2020-09-29 14:39:06,475 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread13 given in one single declaration [2020-09-29 14:39:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure thread13 [2020-09-29 14:39:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure thread13 [2020-09-29 14:39:06,476 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-09-29 14:39:06,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-29 14:39:06,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-29 14:39:06,477 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread16 given in one single declaration [2020-09-29 14:39:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure thread16 [2020-09-29 14:39:06,477 INFO L138 BoogieDeclarations]: Found implementation of procedure thread16 [2020-09-29 14:39:06,477 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread15 given in one single declaration [2020-09-29 14:39:06,477 INFO L130 BoogieDeclarations]: Found specification of procedure thread15 [2020-09-29 14:39:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure thread15 [2020-09-29 14:39:06,478 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread10 given in one single declaration [2020-09-29 14:39:06,478 INFO L130 BoogieDeclarations]: Found specification of procedure thread10 [2020-09-29 14:39:06,478 INFO L138 BoogieDeclarations]: Found implementation of procedure thread10 [2020-09-29 14:39:06,478 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread12 given in one single declaration [2020-09-29 14:39:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure thread12 [2020-09-29 14:39:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread12 [2020-09-29 14:39:06,479 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread11 given in one single declaration [2020-09-29 14:39:06,479 INFO L130 BoogieDeclarations]: Found specification of procedure thread11 [2020-09-29 14:39:06,479 INFO L138 BoogieDeclarations]: Found implementation of procedure thread11 [2020-09-29 14:39:06,481 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 14:39:06,877 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-29 14:39:06,877 INFO L298 CfgBuilder]: Removed 25 assume(true) statements. [2020-09-29 14:39:06,882 INFO L202 PluginConnector]: Adding new model example2_N=25.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:39:06 BoogieIcfgContainer [2020-09-29 14:39:06,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-29 14:39:06,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-29 14:39:06,884 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-29 14:39:06,887 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-29 14:39:06,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 02:39:06" (1/2) ... [2020-09-29 14:39:06,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cdd0c8 and model type example2_N=25.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 02:39:06, skipping insertion in model container [2020-09-29 14:39:06,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=25.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 02:39:06" (2/2) ... [2020-09-29 14:39:06,892 INFO L109 eAbstractionObserver]: Analyzing ICFG example2_N=25.bpl [2020-09-29 14:39:06,903 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-29 14:39:06,914 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-29 14:39:06,915 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-29 14:39:07,367 INFO L251 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2020-09-29 14:39:07,395 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-29 14:39:07,395 INFO L376 AbstractCegarLoop]: Hoare is false [2020-09-29 14:39:07,395 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-29 14:39:07,395 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-29 14:39:07,396 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-29 14:39:07,396 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-29 14:39:07,396 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-29 14:39:07,396 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-29 14:39:07,418 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 180 places, 129 transitions, 458 flow [2020-09-29 14:39:07,510 INFO L129 PetriNetUnfolder]: 25/104 cut-off events. [2020-09-29 14:39:07,511 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2020-09-29 14:39:07,525 INFO L80 FinitePrefix]: Finished finitePrefix Result has 205 conditions, 104 events. 25/104 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 81 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 122. Up to 2 conditions per place. [2020-09-29 14:39:07,526 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 129 transitions, 458 flow [2020-09-29 14:39:07,546 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 102 transitions, 354 flow [2020-09-29 14:39:07,630 INFO L129 PetriNetUnfolder]: 25/101 cut-off events. [2020-09-29 14:39:07,630 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2020-09-29 14:39:07,630 INFO L245 CegarLoopForPetriNet]: Found error trace [2020-09-29 14:39:07,632 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] [2020-09-29 14:39:07,632 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr23INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr24INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr17INUSE_VIOLATION, ULTIMATE.startErr16INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15INUSE_VIOLATION, ULTIMATE.startErr19INUSE_VIOLATION, ULTIMATE.startErr18INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr22INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr21INUSE_VIOLATION, ULTIMATE.startErr20INUSE_VIOLATION]=== [2020-09-29 14:39:07,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-29 14:39:07,641 INFO L82 PathProgramCache]: Analyzing trace with hash -1517100198, now seen corresponding path program 1 times [2020-09-29 14:39:07,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-09-29 14:39:07,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296163187] [2020-09-29 14:39:07,662 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 14:39:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-29 14:39:08,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 2 conjunts are in the unsatisfiable core [2020-09-29 14:39:08,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-29 14:39:08,106 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 14:39:08,107 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-09-29 14:39:08,133 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 14:39:08,134 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296163187] [2020-09-29 14:39:08,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-09-29 14:39:08,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-09-29 14:39:08,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734374283] [2020-09-29 14:39:08,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-29 14:39:08,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-09-29 14:39:08,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-29 14:39:08,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-29 14:39:08,176 INFO L503 CegarLoopForPetriNet]: Number of universal loopers: 101 out of 129 [2020-09-29 14:39:08,178 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 102 transitions, 354 flow. Second operand 3 states. [2020-09-29 14:39:08,178 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-09-29 14:39:08,179 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 101 of 129 [2020-09-29 14:39:08,180 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-09-29 14:39:08,321 INFO L129 PetriNetUnfolder]: 25/101 cut-off events. [2020-09-29 14:39:08,321 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2020-09-29 14:39:08,328 INFO L80 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 101 events. 25/101 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 74 event pairs, 0 based on Foata normal form. 1/102 useless extension candidates. Maximal degree in co-relation 147. Up to 26 conditions per place. [2020-09-29 14:39:08,330 INFO L132 encePairwiseOnDemand]: 127/129 looper letters, 0 selfloop transitions, 0 changer transitions 101/101 dead transitions. [2020-09-29 14:39:08,331 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 101 transitions, 404 flow [2020-09-29 14:39:08,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-29 14:39:08,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-09-29 14:39:08,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2020-09-29 14:39:08,364 INFO L550 CegarLoopForPetriNet]: DFA transition density 0.8527131782945736 [2020-09-29 14:39:08,366 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 330 transitions. [2020-09-29 14:39:08,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 330 transitions. [2020-09-29 14:39:08,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-09-29 14:39:08,379 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 330 transitions. [2020-09-29 14:39:08,385 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-09-29 14:39:08,398 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-09-29 14:39:08,399 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-09-29 14:39:08,403 INFO L185 Difference]: Start difference. First operand has 153 places, 102 transitions, 354 flow. Second operand 3 states and 330 transitions. [2020-09-29 14:39:08,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 101 transitions, 404 flow [2020-09-29 14:39:08,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 101 transitions, 304 flow, removed 0 selfloop flow, removed 50 redundant places. [2020-09-29 14:39:08,427 INFO L241 Difference]: Finished difference. Result has 104 places, 0 transitions, 0 flow [2020-09-29 14:39:08,431 INFO L321 CegarLoopForPetriNet]: {PETRI_ALPHABET=129, PETRI_DIFFERENCE_MINUEND_FLOW=252, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=104, PETRI_TRANSITIONS=0} [2020-09-29 14:39:08,433 INFO L337 CegarLoopForPetriNet]: 153 programPoint places, -49 predicate places. [2020-09-29 14:39:08,433 INFO L479 AbstractCegarLoop]: Abstraction has has 104 places, 0 transitions, 0 flow [2020-09-29 14:39:08,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-29 14:39:08,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-09-29 14:39:08,659 INFO L202 PluginConnector]: Adding new model example2_N=25.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.09 02:39:08 BasicIcfg [2020-09-29 14:39:08,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-29 14:39:08,663 INFO L168 Benchmark]: Toolchain (without parser) took 2441.19 ms. Allocated memory was 252.2 MB in the beginning and 308.3 MB in the end (delta: 56.1 MB). Free memory was 223.5 MB in the beginning and 269.7 MB in the end (delta: -46.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:08,664 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.60 ms. Allocated memory is still 252.2 MB. Free memory is still 226.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-09-29 14:39:08,665 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.73 ms. Allocated memory is still 252.2 MB. Free memory is still 223.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-09-29 14:39:08,666 INFO L168 Benchmark]: Boogie Preprocessor took 75.10 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 14:39:08,667 INFO L168 Benchmark]: RCFGBuilder took 520.75 ms. Allocated memory is still 252.2 MB. Free memory was 221.0 MB in the beginning and 195.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 14.2 GB. [2020-09-29 14:39:08,668 INFO L168 Benchmark]: TraceAbstraction took 1776.46 ms. Allocated memory was 252.2 MB in the beginning and 308.3 MB in the end (delta: 56.1 MB). Free memory was 195.8 MB in the beginning and 269.7 MB in the end (delta: -73.9 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-09-29 14:39:08,672 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 0.60 ms. Allocated memory is still 252.2 MB. Free memory is still 226.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 58.73 ms. Allocated memory is still 252.2 MB. Free memory is still 223.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 75.10 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 520.75 ms. Allocated memory is still 252.2 MB. Free memory was 221.0 MB in the beginning and 195.8 MB in the end (delta: 25.2 MB). Peak memory consumption was 25.2 MB. Max. memory is 14.2 GB. * TraceAbstraction took 1776.46 ms. Allocated memory was 252.2 MB in the beginning and 308.3 MB in the end (delta: 56.1 MB). Free memory was 195.8 MB in the beginning and 269.7 MB in the end (delta: -73.9 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 60]: 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 26 procedures, 105 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: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 1 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 25 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=354occurred 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 152 ConstructedInterpolants, 0 QuantifiedInterpolants, 34656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1330 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...