/usr/bin/java -Xmx8000000000 -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=29.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b665a9c [2020-09-29 10:30:52,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-29 10:30:52,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-29 10:30:52,303 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-29 10:30:52,304 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-29 10:30:52,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-29 10:30:52,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-29 10:30:52,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-29 10:30:52,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-29 10:30:52,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-29 10:30:52,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-29 10:30:52,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-29 10:30:52,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-29 10:30:52,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-29 10:30:52,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-29 10:30:52,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-29 10:30:52,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-29 10:30:52,343 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-29 10:30:52,345 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-29 10:30:52,355 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-29 10:30:52,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-29 10:30:52,359 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-29 10:30:52,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-29 10:30:52,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-29 10:30:52,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-29 10:30:52,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-29 10:30:52,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-29 10:30:52,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-29 10:30:52,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-29 10:30:52,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-29 10:30:52,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-29 10:30:52,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-29 10:30:52,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-29 10:30:52,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-29 10:30:52,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-29 10:30:52,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-29 10:30:52,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-29 10:30:52,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-29 10:30:52,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-29 10:30:52,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-29 10:30:52,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-29 10:30:52,380 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 [2020-09-29 10:30:52,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-29 10:30:52,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-29 10:30:52,434 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-29 10:30:52,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-29 10:30:52,435 INFO L138 SettingsManager]: * Use SBE=true [2020-09-29 10:30:52,435 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-29 10:30:52,436 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-29 10:30:52,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-29 10:30:52,436 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-29 10:30:52,436 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-29 10:30:52,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-29 10:30:52,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-29 10:30:52,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-29 10:30:52,438 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-29 10:30:52,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-29 10:30:52,439 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-29 10:30:52,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-29 10:30:52,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-29 10:30:52,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-29 10:30:52,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-29 10:30:52,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-29 10:30:52,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-29 10:30:52,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-29 10:30:52,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-29 10:30:52,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-29 10:30:52,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-29 10:30:52,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-29 10:30:52,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-29 10:30:52,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-29 10:30:52,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-29 10:30:52,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-29 10:30:52,881 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-29 10:30:52,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-29 10:30:52,887 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-09-29 10:30:52,888 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-09-29 10:30:52,889 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=29.bpl [2020-09-29 10:30:52,890 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=29.bpl' [2020-09-29 10:30:52,956 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-29 10:30:52,964 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-29 10:30:52,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-29 10:30:52,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-29 10:30:52,965 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-29 10:30:52,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:30:52" (1/1) ... [2020-09-29 10:30:53,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:30:52" (1/1) ... [2020-09-29 10:30:53,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-29 10:30:53,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-29 10:30:53,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-29 10:30:53,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-29 10:30:53,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:30:52" (1/1) ... [2020-09-29 10:30:53,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:30:52" (1/1) ... [2020-09-29 10:30:53,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:30:52" (1/1) ... [2020-09-29 10:30:53,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:30:52" (1/1) ... [2020-09-29 10:30:53,041 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:30:52" (1/1) ... [2020-09-29 10:30:53,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:30:52" (1/1) ... [2020-09-29 10:30:53,054 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:30:52" (1/1) ... [2020-09-29 10:30:53,059 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-29 10:30:53,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-29 10:30:53,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-29 10:30:53,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-29 10:30:53,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:30:52" (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 10:30:53,158 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread29 given in one single declaration [2020-09-29 10:30:53,158 INFO L130 BoogieDeclarations]: Found specification of procedure thread29 [2020-09-29 10:30:53,158 INFO L138 BoogieDeclarations]: Found implementation of procedure thread29 [2020-09-29 10:30:53,159 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread28 given in one single declaration [2020-09-29 10:30:53,159 INFO L130 BoogieDeclarations]: Found specification of procedure thread28 [2020-09-29 10:30:53,159 INFO L138 BoogieDeclarations]: Found implementation of procedure thread28 [2020-09-29 10:30:53,159 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread25 given in one single declaration [2020-09-29 10:30:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure thread25 [2020-09-29 10:30:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thread25 [2020-09-29 10:30:53,160 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread24 given in one single declaration [2020-09-29 10:30:53,160 INFO L130 BoogieDeclarations]: Found specification of procedure thread24 [2020-09-29 10:30:53,160 INFO L138 BoogieDeclarations]: Found implementation of procedure thread24 [2020-09-29 10:30:53,161 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread27 given in one single declaration [2020-09-29 10:30:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure thread27 [2020-09-29 10:30:53,161 INFO L138 BoogieDeclarations]: Found implementation of procedure thread27 [2020-09-29 10:30:53,161 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread26 given in one single declaration [2020-09-29 10:30:53,161 INFO L130 BoogieDeclarations]: Found specification of procedure thread26 [2020-09-29 10:30:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure thread26 [2020-09-29 10:30:53,162 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread21 given in one single declaration [2020-09-29 10:30:53,162 INFO L130 BoogieDeclarations]: Found specification of procedure thread21 [2020-09-29 10:30:53,162 INFO L138 BoogieDeclarations]: Found implementation of procedure thread21 [2020-09-29 10:30:53,162 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread20 given in one single declaration [2020-09-29 10:30:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread20 [2020-09-29 10:30:53,163 INFO L138 BoogieDeclarations]: Found implementation of procedure thread20 [2020-09-29 10:30:53,163 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread23 given in one single declaration [2020-09-29 10:30:53,163 INFO L130 BoogieDeclarations]: Found specification of procedure thread23 [2020-09-29 10:30:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure thread23 [2020-09-29 10:30:53,164 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread22 given in one single declaration [2020-09-29 10:30:53,164 INFO L130 BoogieDeclarations]: Found specification of procedure thread22 [2020-09-29 10:30:53,164 INFO L138 BoogieDeclarations]: Found implementation of procedure thread22 [2020-09-29 10:30:53,164 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread18 given in one single declaration [2020-09-29 10:30:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure thread18 [2020-09-29 10:30:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thread18 [2020-09-29 10:30:53,165 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread17 given in one single declaration [2020-09-29 10:30:53,165 INFO L130 BoogieDeclarations]: Found specification of procedure thread17 [2020-09-29 10:30:53,165 INFO L138 BoogieDeclarations]: Found implementation of procedure thread17 [2020-09-29 10:30:53,165 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread19 given in one single declaration [2020-09-29 10:30:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure thread19 [2020-09-29 10:30:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure thread19 [2020-09-29 10:30:53,166 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2020-09-29 10:30:53,166 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-09-29 10:30:53,166 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-09-29 10:30:53,167 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2020-09-29 10:30:53,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-09-29 10:30:53,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-09-29 10:30:53,167 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2020-09-29 10:30:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-09-29 10:30:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-09-29 10:30:53,168 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2020-09-29 10:30:53,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2020-09-29 10:30:53,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2020-09-29 10:30:53,169 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2020-09-29 10:30:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2020-09-29 10:30:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2020-09-29 10:30:53,169 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2020-09-29 10:30:53,169 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2020-09-29 10:30:53,169 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2020-09-29 10:30:53,170 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2020-09-29 10:30:53,170 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2020-09-29 10:30:53,170 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2020-09-29 10:30:53,170 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2020-09-29 10:30:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2020-09-29 10:30:53,171 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2020-09-29 10:30:53,171 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread9 given in one single declaration [2020-09-29 10:30:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure thread9 [2020-09-29 10:30:53,171 INFO L138 BoogieDeclarations]: Found implementation of procedure thread9 [2020-09-29 10:30:53,172 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread14 given in one single declaration [2020-09-29 10:30:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure thread14 [2020-09-29 10:30:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure thread14 [2020-09-29 10:30:53,172 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread13 given in one single declaration [2020-09-29 10:30:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure thread13 [2020-09-29 10:30:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure thread13 [2020-09-29 10:30:53,173 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-09-29 10:30:53,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-29 10:30:53,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-29 10:30:53,173 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread16 given in one single declaration [2020-09-29 10:30:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread16 [2020-09-29 10:30:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread16 [2020-09-29 10:30:53,174 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread15 given in one single declaration [2020-09-29 10:30:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread15 [2020-09-29 10:30:53,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread15 [2020-09-29 10:30:53,175 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread10 given in one single declaration [2020-09-29 10:30:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure thread10 [2020-09-29 10:30:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure thread10 [2020-09-29 10:30:53,175 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread12 given in one single declaration [2020-09-29 10:30:53,175 INFO L130 BoogieDeclarations]: Found specification of procedure thread12 [2020-09-29 10:30:53,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread12 [2020-09-29 10:30:53,176 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread11 given in one single declaration [2020-09-29 10:30:53,176 INFO L130 BoogieDeclarations]: Found specification of procedure thread11 [2020-09-29 10:30:53,176 INFO L138 BoogieDeclarations]: Found implementation of procedure thread11 [2020-09-29 10:30:53,178 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 10:30:53,515 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-29 10:30:53,516 INFO L298 CfgBuilder]: Removed 29 assume(true) statements. [2020-09-29 10:30:53,522 INFO L202 PluginConnector]: Adding new model example2_N=29.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:30:53 BoogieIcfgContainer [2020-09-29 10:30:53,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-29 10:30:53,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-29 10:30:53,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-29 10:30:53,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-29 10:30:53,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:30:52" (1/2) ... [2020-09-29 10:30:53,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26248a74 and model type example2_N=29.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 10:30:53, skipping insertion in model container [2020-09-29 10:30:53,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=29.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:30:53" (2/2) ... [2020-09-29 10:30:53,532 INFO L109 eAbstractionObserver]: Analyzing ICFG example2_N=29.bpl [2020-09-29 10:30:53,544 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-29 10:30:53,545 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-29 10:30:53,555 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-29 10:30:53,557 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-29 10:30:54,223 INFO L251 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2020-09-29 10:30:54,247 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-29 10:30:54,248 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-29 10:30:54,248 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-29 10:30:54,248 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-29 10:30:54,248 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-29 10:30:54,248 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-29 10:30:54,248 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-29 10:30:54,249 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-29 10:30:54,277 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 208 places, 149 transitions, 530 flow [2020-09-29 10:30:54,279 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 208 places, 149 transitions, 530 flow [2020-09-29 10:30:54,398 INFO L129 PetriNetUnfolder]: 29/120 cut-off events. [2020-09-29 10:30:54,399 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2020-09-29 10:30:54,414 INFO L80 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 120 events. 29/120 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 97 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 142. Up to 2 conditions per place. [2020-09-29 10:30:54,428 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 208 places, 149 transitions, 530 flow [2020-09-29 10:30:54,529 INFO L129 PetriNetUnfolder]: 29/120 cut-off events. [2020-09-29 10:30:54,529 INFO L130 PetriNetUnfolder]: For 29/29 co-relation queries the response was YES. [2020-09-29 10:30:54,532 INFO L80 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 120 events. 29/120 cut-off events. For 29/29 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 97 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 142. Up to 2 conditions per place. [2020-09-29 10:30:54,538 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 6496 [2020-09-29 10:30:54,540 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-29 10:30:54,703 INFO L206 etLargeBlockEncoding]: Checked pairs total: 0 [2020-09-29 10:30:54,703 INFO L214 etLargeBlockEncoding]: Total number of compositions: 1 [2020-09-29 10:30:54,707 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 207 places, 148 transitions, 528 flow