/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=38.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-08 13:57:18,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-08 13:57:18,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-08 13:57:18,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-08 13:57:18,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-08 13:57:18,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-08 13:57:18,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-08 13:57:18,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-08 13:57:18,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-08 13:57:18,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-08 13:57:18,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-08 13:57:18,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-08 13:57:18,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-08 13:57:18,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-08 13:57:18,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-08 13:57:18,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-08 13:57:18,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-08 13:57:18,342 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-08 13:57:18,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-08 13:57:18,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-08 13:57:18,354 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-08 13:57:18,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-08 13:57:18,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-08 13:57:18,358 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-08 13:57:18,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-08 13:57:18,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-08 13:57:18,363 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-08 13:57:18,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-08 13:57:18,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-08 13:57:18,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-08 13:57:18,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-08 13:57:18,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-08 13:57:18,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-08 13:57:18,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-08 13:57:18,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-08 13:57:18,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-08 13:57:18,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-08 13:57:18,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-08 13:57:18,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-08 13:57:18,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-08 13:57:18,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-08 13:57:18,376 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 13:57:18,421 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-08 13:57:18,422 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-08 13:57:18,423 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-08 13:57:18,424 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-08 13:57:18,424 INFO L138 SettingsManager]: * Use SBE=true [2020-10-08 13:57:18,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-08 13:57:18,424 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-08 13:57:18,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-08 13:57:18,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-08 13:57:18,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-08 13:57:18,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-08 13:57:18,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-08 13:57:18,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-08 13:57:18,427 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-08 13:57:18,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-08 13:57:18,427 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-08 13:57:18,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-08 13:57:18,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-08 13:57:18,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-08 13:57:18,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-08 13:57:18,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-08 13:57:18,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-08 13:57:18,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-08 13:57:18,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-08 13:57:18,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-08 13:57:18,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-08 13:57:18,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-08 13:57:18,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-08 13:57:18,430 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-08 13:57:18,430 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-08 13:57:18,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-08 13:57:18,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-08 13:57:18,750 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-08 13:57:18,752 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-10-08 13:57:18,753 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-10-08 13:57:18,754 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=38.bpl [2020-10-08 13:57:18,754 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=38.bpl' [2020-10-08 13:57:18,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-08 13:57:18,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-08 13:57:18,822 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-08 13:57:18,822 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-08 13:57:18,822 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-08 13:57:18,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:57:18" (1/1) ... [2020-10-08 13:57:18,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:57:18" (1/1) ... [2020-10-08 13:57:18,876 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-08 13:57:18,877 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-08 13:57:18,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-08 13:57:18,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-08 13:57:18,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:57:18" (1/1) ... [2020-10-08 13:57:18,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:57:18" (1/1) ... [2020-10-08 13:57:18,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:57:18" (1/1) ... [2020-10-08 13:57:18,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:57:18" (1/1) ... [2020-10-08 13:57:18,905 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:57:18" (1/1) ... [2020-10-08 13:57:18,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:57:18" (1/1) ... [2020-10-08 13:57:18,921 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:57:18" (1/1) ... [2020-10-08 13:57:18,926 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-08 13:57:18,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-08 13:57:18,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-08 13:57:18,927 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-08 13:57:18,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:57:18" (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 13:57:18,997 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread29 given in one single declaration [2020-10-08 13:57:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure thread29 [2020-10-08 13:57:18,998 INFO L138 BoogieDeclarations]: Found implementation of procedure thread29 [2020-10-08 13:57:18,998 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread28 given in one single declaration [2020-10-08 13:57:18,998 INFO L130 BoogieDeclarations]: Found specification of procedure thread28 [2020-10-08 13:57:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread28 [2020-10-08 13:57:18,999 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread25 given in one single declaration [2020-10-08 13:57:18,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread25 [2020-10-08 13:57:18,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread25 [2020-10-08 13:57:19,000 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread24 given in one single declaration [2020-10-08 13:57:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread24 [2020-10-08 13:57:19,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread24 [2020-10-08 13:57:19,000 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread27 given in one single declaration [2020-10-08 13:57:19,000 INFO L130 BoogieDeclarations]: Found specification of procedure thread27 [2020-10-08 13:57:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread27 [2020-10-08 13:57:19,001 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread26 given in one single declaration [2020-10-08 13:57:19,001 INFO L130 BoogieDeclarations]: Found specification of procedure thread26 [2020-10-08 13:57:19,001 INFO L138 BoogieDeclarations]: Found implementation of procedure thread26 [2020-10-08 13:57:19,001 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread21 given in one single declaration [2020-10-08 13:57:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread21 [2020-10-08 13:57:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread21 [2020-10-08 13:57:19,002 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread20 given in one single declaration [2020-10-08 13:57:19,002 INFO L130 BoogieDeclarations]: Found specification of procedure thread20 [2020-10-08 13:57:19,002 INFO L138 BoogieDeclarations]: Found implementation of procedure thread20 [2020-10-08 13:57:19,002 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread23 given in one single declaration [2020-10-08 13:57:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure thread23 [2020-10-08 13:57:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread23 [2020-10-08 13:57:19,003 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread22 given in one single declaration [2020-10-08 13:57:19,003 INFO L130 BoogieDeclarations]: Found specification of procedure thread22 [2020-10-08 13:57:19,003 INFO L138 BoogieDeclarations]: Found implementation of procedure thread22 [2020-10-08 13:57:19,004 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread18 given in one single declaration [2020-10-08 13:57:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread18 [2020-10-08 13:57:19,004 INFO L138 BoogieDeclarations]: Found implementation of procedure thread18 [2020-10-08 13:57:19,004 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread17 given in one single declaration [2020-10-08 13:57:19,004 INFO L130 BoogieDeclarations]: Found specification of procedure thread17 [2020-10-08 13:57:19,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread17 [2020-10-08 13:57:19,005 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread19 given in one single declaration [2020-10-08 13:57:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread19 [2020-10-08 13:57:19,005 INFO L138 BoogieDeclarations]: Found implementation of procedure thread19 [2020-10-08 13:57:19,005 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2020-10-08 13:57:19,005 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-08 13:57:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-08 13:57:19,006 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2020-10-08 13:57:19,006 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-08 13:57:19,006 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-08 13:57:19,006 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2020-10-08 13:57:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-08 13:57:19,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-08 13:57:19,007 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2020-10-08 13:57:19,007 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2020-10-08 13:57:19,007 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2020-10-08 13:57:19,007 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2020-10-08 13:57:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2020-10-08 13:57:19,008 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2020-10-08 13:57:19,008 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2020-10-08 13:57:19,008 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2020-10-08 13:57:19,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2020-10-08 13:57:19,009 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2020-10-08 13:57:19,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2020-10-08 13:57:19,009 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2020-10-08 13:57:19,009 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2020-10-08 13:57:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2020-10-08 13:57:19,010 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2020-10-08 13:57:19,010 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread9 given in one single declaration [2020-10-08 13:57:19,010 INFO L130 BoogieDeclarations]: Found specification of procedure thread9 [2020-10-08 13:57:19,010 INFO L138 BoogieDeclarations]: Found implementation of procedure thread9 [2020-10-08 13:57:19,011 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread30 given in one single declaration [2020-10-08 13:57:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread30 [2020-10-08 13:57:19,011 INFO L138 BoogieDeclarations]: Found implementation of procedure thread30 [2020-10-08 13:57:19,011 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread36 given in one single declaration [2020-10-08 13:57:19,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread36 [2020-10-08 13:57:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure thread36 [2020-10-08 13:57:19,012 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread14 given in one single declaration [2020-10-08 13:57:19,012 INFO L130 BoogieDeclarations]: Found specification of procedure thread14 [2020-10-08 13:57:19,012 INFO L138 BoogieDeclarations]: Found implementation of procedure thread14 [2020-10-08 13:57:19,012 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread35 given in one single declaration [2020-10-08 13:57:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure thread35 [2020-10-08 13:57:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thread35 [2020-10-08 13:57:19,013 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread13 given in one single declaration [2020-10-08 13:57:19,013 INFO L130 BoogieDeclarations]: Found specification of procedure thread13 [2020-10-08 13:57:19,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thread13 [2020-10-08 13:57:19,014 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-10-08 13:57:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-08 13:57:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-08 13:57:19,014 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread38 given in one single declaration [2020-10-08 13:57:19,014 INFO L130 BoogieDeclarations]: Found specification of procedure thread38 [2020-10-08 13:57:19,014 INFO L138 BoogieDeclarations]: Found implementation of procedure thread38 [2020-10-08 13:57:19,015 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread16 given in one single declaration [2020-10-08 13:57:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread16 [2020-10-08 13:57:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread16 [2020-10-08 13:57:19,015 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread37 given in one single declaration [2020-10-08 13:57:19,015 INFO L130 BoogieDeclarations]: Found specification of procedure thread37 [2020-10-08 13:57:19,015 INFO L138 BoogieDeclarations]: Found implementation of procedure thread37 [2020-10-08 13:57:19,016 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread15 given in one single declaration [2020-10-08 13:57:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure thread15 [2020-10-08 13:57:19,016 INFO L138 BoogieDeclarations]: Found implementation of procedure thread15 [2020-10-08 13:57:19,016 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread32 given in one single declaration [2020-10-08 13:57:19,016 INFO L130 BoogieDeclarations]: Found specification of procedure thread32 [2020-10-08 13:57:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure thread32 [2020-10-08 13:57:19,017 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread10 given in one single declaration [2020-10-08 13:57:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure thread10 [2020-10-08 13:57:19,017 INFO L138 BoogieDeclarations]: Found implementation of procedure thread10 [2020-10-08 13:57:19,017 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread31 given in one single declaration [2020-10-08 13:57:19,017 INFO L130 BoogieDeclarations]: Found specification of procedure thread31 [2020-10-08 13:57:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure thread31 [2020-10-08 13:57:19,018 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread34 given in one single declaration [2020-10-08 13:57:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure thread34 [2020-10-08 13:57:19,018 INFO L138 BoogieDeclarations]: Found implementation of procedure thread34 [2020-10-08 13:57:19,018 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread12 given in one single declaration [2020-10-08 13:57:19,018 INFO L130 BoogieDeclarations]: Found specification of procedure thread12 [2020-10-08 13:57:19,019 INFO L138 BoogieDeclarations]: Found implementation of procedure thread12 [2020-10-08 13:57:19,019 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread33 given in one single declaration [2020-10-08 13:57:19,019 INFO L130 BoogieDeclarations]: Found specification of procedure thread33 [2020-10-08 13:57:19,019 INFO L138 BoogieDeclarations]: Found implementation of procedure thread33 [2020-10-08 13:57:19,019 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread11 given in one single declaration [2020-10-08 13:57:19,020 INFO L130 BoogieDeclarations]: Found specification of procedure thread11 [2020-10-08 13:57:19,020 INFO L138 BoogieDeclarations]: Found implementation of procedure thread11 [2020-10-08 13:57:19,021 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 13:57:19,541 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-08 13:57:19,541 INFO L298 CfgBuilder]: Removed 38 assume(true) statements. [2020-10-08 13:57:19,545 INFO L202 PluginConnector]: Adding new model example2_N=38.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 01:57:19 BoogieIcfgContainer [2020-10-08 13:57:19,546 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-08 13:57:19,548 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-08 13:57:19,548 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-08 13:57:19,551 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-08 13:57:19,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:57:18" (1/2) ... [2020-10-08 13:57:19,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b74a6d8 and model type example2_N=38.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 01:57:19, skipping insertion in model container [2020-10-08 13:57:19,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=38.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 01:57:19" (2/2) ... [2020-10-08 13:57:19,559 INFO L111 eAbstractionObserver]: Analyzing ICFG example2_N=38.bpl [2020-10-08 13:57:19,568 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-08 13:57:19,568 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-08 13:57:19,575 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-08 13:57:19,576 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-08 13:57:20,381 INFO L253 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2020-10-08 13:57:20,404 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-08 13:57:20,404 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-08 13:57:20,404 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-08 13:57:20,404 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-08 13:57:20,405 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-08 13:57:20,405 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-08 13:57:20,405 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-08 13:57:20,405 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-08 13:57:20,430 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-08 13:57:20,433 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 309 places, 232 transitions, 768 flow [2020-10-08 13:57:20,435 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 309 places, 232 transitions, 768 flow [2020-10-08 13:57:20,437 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 309 places, 232 transitions, 768 flow [2020-10-08 13:57:20,563 INFO L129 PetriNetUnfolder]: 38/194 cut-off events. [2020-10-08 13:57:20,563 INFO L130 PetriNetUnfolder]: For 38/38 co-relation queries the response was YES. [2020-10-08 13:57:20,577 INFO L80 FinitePrefix]: Finished finitePrefix Result has 347 conditions, 194 events. 38/194 cut-off events. For 38/38 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 261 event pairs, 0 based on Foata normal form. 0/155 useless extension candidates. Maximal degree in co-relation 225. Up to 2 conditions per place. [2020-10-08 13:57:20,596 INFO L117 LiptonReduction]: Number of co-enabled transitions 21090 [2020-10-08 13:57:21,522 INFO L132 LiptonReduction]: Checked pairs total: 33337 [2020-10-08 13:57:21,523 INFO L134 LiptonReduction]: Total number of compositions: 2 [2020-10-08 13:57:21,530 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 307 places, 230 transitions, 764 flow