/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=21.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-08 13:28:35,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-08 13:28:35,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-08 13:28:35,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-08 13:28:35,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-08 13:28:35,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-08 13:28:35,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-08 13:28:35,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-08 13:28:35,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-08 13:28:35,551 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-08 13:28:35,552 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-08 13:28:35,553 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-08 13:28:35,553 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-08 13:28:35,557 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-08 13:28:35,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-08 13:28:35,561 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-08 13:28:35,562 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-08 13:28:35,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-08 13:28:35,564 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-08 13:28:35,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-08 13:28:35,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-08 13:28:35,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-08 13:28:35,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-08 13:28:35,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-08 13:28:35,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-08 13:28:35,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-08 13:28:35,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-08 13:28:35,586 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-08 13:28:35,587 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-08 13:28:35,594 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-08 13:28:35,594 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-08 13:28:35,595 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-08 13:28:35,595 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-08 13:28:35,596 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-08 13:28:35,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-08 13:28:35,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-08 13:28:35,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-08 13:28:35,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-08 13:28:35,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-08 13:28:35,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-08 13:28:35,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-08 13:28:35,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-08 13:28:35,622 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-08 13:28:35,622 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-08 13:28:35,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-08 13:28:35,624 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-08 13:28:35,624 INFO L138 SettingsManager]: * Use SBE=true [2020-10-08 13:28:35,624 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-08 13:28:35,624 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-08 13:28:35,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-08 13:28:35,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-08 13:28:35,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-08 13:28:35,625 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-08 13:28:35,625 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-08 13:28:35,625 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-08 13:28:35,625 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-08 13:28:35,626 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-08 13:28:35,626 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-08 13:28:35,626 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-08 13:28:35,626 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-08 13:28:35,626 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-08 13:28:35,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-08 13:28:35,627 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-08 13:28:35,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-08 13:28:35,627 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-08 13:28:35,627 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-08 13:28:35,627 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-08 13:28:35,628 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-08 13:28:35,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-08 13:28:35,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-08 13:28:35,628 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-08 13:28:35,628 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-08 13:28:35,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-08 13:28:35,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-08 13:28:35,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-08 13:28:35,927 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-10-08 13:28:35,928 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-10-08 13:28:35,928 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=21.bpl [2020-10-08 13:28:35,929 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=21.bpl' [2020-10-08 13:28:35,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-08 13:28:35,975 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-08 13:28:35,976 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-08 13:28:35,976 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-08 13:28:35,976 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-08 13:28:35,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:35" (1/1) ... [2020-10-08 13:28:36,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:35" (1/1) ... [2020-10-08 13:28:36,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-08 13:28:36,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-08 13:28:36,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-08 13:28:36,013 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-08 13:28:36,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:35" (1/1) ... [2020-10-08 13:28:36,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:35" (1/1) ... [2020-10-08 13:28:36,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:35" (1/1) ... [2020-10-08 13:28:36,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:35" (1/1) ... [2020-10-08 13:28:36,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:35" (1/1) ... [2020-10-08 13:28:36,041 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:35" (1/1) ... [2020-10-08 13:28:36,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:35" (1/1) ... [2020-10-08 13:28:36,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-08 13:28:36,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-08 13:28:36,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-08 13:28:36,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-08 13:28:36,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:35" (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 [2020-10-08 13:28:36,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread18 given in one single declaration [2020-10-08 13:28:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread18 [2020-10-08 13:28:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread18 [2020-10-08 13:28:36,112 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread17 given in one single declaration [2020-10-08 13:28:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure thread17 [2020-10-08 13:28:36,112 INFO L138 BoogieDeclarations]: Found implementation of procedure thread17 [2020-10-08 13:28:36,113 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread19 given in one single declaration [2020-10-08 13:28:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread19 [2020-10-08 13:28:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread19 [2020-10-08 13:28:36,113 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2020-10-08 13:28:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-08 13:28:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-08 13:28:36,114 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2020-10-08 13:28:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-08 13:28:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-08 13:28:36,114 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2020-10-08 13:28:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-08 13:28:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-08 13:28:36,115 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2020-10-08 13:28:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2020-10-08 13:28:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2020-10-08 13:28:36,115 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2020-10-08 13:28:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2020-10-08 13:28:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2020-10-08 13:28:36,116 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2020-10-08 13:28:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2020-10-08 13:28:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2020-10-08 13:28:36,116 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2020-10-08 13:28:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2020-10-08 13:28:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2020-10-08 13:28:36,117 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2020-10-08 13:28:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2020-10-08 13:28:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2020-10-08 13:28:36,118 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread9 given in one single declaration [2020-10-08 13:28:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread9 [2020-10-08 13:28:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread9 [2020-10-08 13:28:36,118 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread14 given in one single declaration [2020-10-08 13:28:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure thread14 [2020-10-08 13:28:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure thread14 [2020-10-08 13:28:36,119 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread13 given in one single declaration [2020-10-08 13:28:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure thread13 [2020-10-08 13:28:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure thread13 [2020-10-08 13:28:36,119 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-10-08 13:28:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-08 13:28:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-08 13:28:36,120 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread16 given in one single declaration [2020-10-08 13:28:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure thread16 [2020-10-08 13:28:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure thread16 [2020-10-08 13:28:36,120 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread15 given in one single declaration [2020-10-08 13:28:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure thread15 [2020-10-08 13:28:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure thread15 [2020-10-08 13:28:36,121 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread21 given in one single declaration [2020-10-08 13:28:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure thread21 [2020-10-08 13:28:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure thread21 [2020-10-08 13:28:36,121 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread10 given in one single declaration [2020-10-08 13:28:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure thread10 [2020-10-08 13:28:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure thread10 [2020-10-08 13:28:36,122 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread20 given in one single declaration [2020-10-08 13:28:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure thread20 [2020-10-08 13:28:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure thread20 [2020-10-08 13:28:36,122 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread12 given in one single declaration [2020-10-08 13:28:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure thread12 [2020-10-08 13:28:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure thread12 [2020-10-08 13:28:36,123 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread11 given in one single declaration [2020-10-08 13:28:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure thread11 [2020-10-08 13:28:36,123 INFO L138 BoogieDeclarations]: Found implementation of procedure thread11 [2020-10-08 13:28:36,124 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-08 13:28:36,445 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-08 13:28:36,446 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-10-08 13:28:36,448 INFO L202 PluginConnector]: Adding new model example2_N=21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 01:28:36 BoogieIcfgContainer [2020-10-08 13:28:36,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-08 13:28:36,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-08 13:28:36,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-08 13:28:36,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-08 13:28:36,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:35" (1/2) ... [2020-10-08 13:28:36,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2572a54d and model type example2_N=21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 01:28:36, skipping insertion in model container [2020-10-08 13:28:36,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 01:28:36" (2/2) ... [2020-10-08 13:28:36,457 INFO L111 eAbstractionObserver]: Analyzing ICFG example2_N=21.bpl [2020-10-08 13:28:36,469 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-08 13:28:36,469 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-08 13:28:36,476 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-08 13:28:36,477 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-08 13:28:36,885 INFO L253 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2020-10-08 13:28:36,907 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-08 13:28:36,907 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-08 13:28:36,908 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-08 13:28:36,908 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-08 13:28:36,908 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-08 13:28:36,908 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-08 13:28:36,908 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-08 13:28:36,908 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-08 13:28:36,931 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-08 13:28:36,933 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 173 places, 130 transitions, 428 flow [2020-10-08 13:28:36,936 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 173 places, 130 transitions, 428 flow [2020-10-08 13:28:36,938 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 173 places, 130 transitions, 428 flow [2020-10-08 13:28:37,045 INFO L129 PetriNetUnfolder]: 21/109 cut-off events. [2020-10-08 13:28:37,046 INFO L130 PetriNetUnfolder]: For 21/21 co-relation queries the response was YES. [2020-10-08 13:28:37,068 INFO L80 FinitePrefix]: Finished finitePrefix Result has 194 conditions, 109 events. 21/109 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 145 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 123. Up to 2 conditions per place. [2020-10-08 13:28:37,079 INFO L117 LiptonReduction]: Number of co-enabled transitions 6300 [2020-10-08 13:28:37,900 INFO L132 LiptonReduction]: Checked pairs total: 9860 [2020-10-08 13:28:37,900 INFO L134 LiptonReduction]: Total number of compositions: 2 [2020-10-08 13:28:37,908 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 171 places, 128 transitions, 424 flow Received shutdown request... [2020-10-08 13:42:21,815 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-08 13:42:21,818 WARN L235 ceAbstractionStarter]: Timeout [2020-10-08 13:42:21,818 INFO L202 PluginConnector]: Adding new model example2_N=21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 01:42:21 BasicIcfg [2020-10-08 13:42:21,818 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-08 13:42:21,824 INFO L168 Benchmark]: Toolchain (without parser) took 825845.34 ms. Allocated memory was 248.5 MB in the beginning and 6.7 GB in the end (delta: 6.5 GB). Free memory was 224.9 MB in the beginning and 2.5 GB in the end (delta: -2.2 GB). Peak memory consumption was 6.1 GB. Max. memory is 14.2 GB. [2020-10-08 13:42:21,825 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 248.5 MB. Free memory is still 224.9 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-08 13:42:21,826 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.05 ms. Allocated memory is still 248.5 MB. Free memory is still 222.4 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-08 13:42:21,827 INFO L168 Benchmark]: Boogie Preprocessor took 33.63 ms. Allocated memory is still 248.5 MB. Free memory was 222.4 MB in the beginning and 219.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-08 13:42:21,828 INFO L168 Benchmark]: RCFGBuilder took 401.62 ms. Allocated memory is still 248.5 MB. Free memory was 219.9 MB in the beginning and 197.1 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. [2020-10-08 13:42:21,834 INFO L168 Benchmark]: TraceAbstraction took 825369.47 ms. Allocated memory was 248.5 MB in the beginning and 6.7 GB in the end (delta: 6.5 GB). Free memory was 194.6 MB in the beginning and 2.5 GB in the end (delta: -2.3 GB). Peak memory consumption was 6.1 GB. Max. memory is 14.2 GB. [2020-10-08 13:42:21,838 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 0.18 ms. Allocated memory is still 248.5 MB. Free memory is still 224.9 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 36.05 ms. Allocated memory is still 248.5 MB. Free memory is still 222.4 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 33.63 ms. Allocated memory is still 248.5 MB. Free memory was 222.4 MB in the beginning and 219.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 401.62 ms. Allocated memory is still 248.5 MB. Free memory was 219.9 MB in the beginning and 197.1 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 14.2 GB. * TraceAbstraction took 825369.47 ms. Allocated memory was 248.5 MB in the beginning and 6.7 GB in the end (delta: 6.5 GB). Free memory was 194.6 MB in the beginning and 2.5 GB in the end (delta: -2.3 GB). Peak memory consumption was 6.1 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 2160 VarBasedMoverChecksPositive, 140 VarBasedMoverChecksNegative, 81 SemBasedMoverChecksPositive, 59 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.6s, 2216 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.9s, 173 PlacesBefore, 171 PlacesAfterwards, 130 TransitionsBefore, 128 TransitionsAfterwards, 6300 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 9860 MoverChecksTotal - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 52). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 171 places, 128 transitions, 424 flow. Already constructed 709225 states. Currently 354622 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 22 procedures, 110 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 824.9s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 824.9s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, 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: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown