/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=52.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-08 16:35:09,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-08 16:35:09,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-08 16:35:09,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-08 16:35:09,220 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-08 16:35:09,221 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-08 16:35:09,222 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-08 16:35:09,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-08 16:35:09,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-08 16:35:09,226 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-08 16:35:09,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-08 16:35:09,228 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-08 16:35:09,229 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-08 16:35:09,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-08 16:35:09,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-08 16:35:09,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-08 16:35:09,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-08 16:35:09,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-08 16:35:09,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-08 16:35:09,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-08 16:35:09,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-08 16:35:09,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-08 16:35:09,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-08 16:35:09,241 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-08 16:35:09,243 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-08 16:35:09,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-08 16:35:09,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-08 16:35:09,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-08 16:35:09,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-08 16:35:09,246 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-08 16:35:09,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-08 16:35:09,247 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-08 16:35:09,250 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-08 16:35:09,251 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-08 16:35:09,252 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-08 16:35:09,253 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-08 16:35:09,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-08 16:35:09,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-08 16:35:09,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-08 16:35:09,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-08 16:35:09,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-08 16:35:09,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-08 16:35:09,307 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-08 16:35:09,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-08 16:35:09,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-08 16:35:09,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-08 16:35:09,309 INFO L138 SettingsManager]: * Use SBE=true [2020-10-08 16:35:09,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-08 16:35:09,310 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-08 16:35:09,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-08 16:35:09,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-08 16:35:09,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-08 16:35:09,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-08 16:35:09,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-08 16:35:09,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-08 16:35:09,311 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-08 16:35:09,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-08 16:35:09,312 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-08 16:35:09,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-08 16:35:09,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-08 16:35:09,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-08 16:35:09,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-08 16:35:09,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-08 16:35:09,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-08 16:35:09,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-08 16:35:09,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-08 16:35:09,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-08 16:35:09,315 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-08 16:35:09,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-08 16:35:09,316 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-08 16:35:09,316 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-08 16:35:09,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-08 16:35:09,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-08 16:35:09,663 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-08 16:35:09,666 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-08 16:35:09,668 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-10-08 16:35:09,670 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-10-08 16:35:09,671 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=52.bpl [2020-10-08 16:35:09,675 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=52.bpl' [2020-10-08 16:35:09,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-08 16:35:09,741 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-08 16:35:09,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-08 16:35:09,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-08 16:35:09,742 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-08 16:35:09,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:35:09" (1/1) ... [2020-10-08 16:35:09,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:35:09" (1/1) ... [2020-10-08 16:35:09,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-08 16:35:09,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-08 16:35:09,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-08 16:35:09,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-08 16:35:09,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:35:09" (1/1) ... [2020-10-08 16:35:09,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:35:09" (1/1) ... [2020-10-08 16:35:09,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:35:09" (1/1) ... [2020-10-08 16:35:09,802 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:35:09" (1/1) ... [2020-10-08 16:35:09,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:35:09" (1/1) ... [2020-10-08 16:35:09,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:35:09" (1/1) ... [2020-10-08 16:35:09,848 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:35:09" (1/1) ... [2020-10-08 16:35:09,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-08 16:35:09,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-08 16:35:09,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-08 16:35:09,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-08 16:35:09,866 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:35:09" (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 16:35:09,944 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread29 given in one single declaration [2020-10-08 16:35:09,945 INFO L130 BoogieDeclarations]: Found specification of procedure thread29 [2020-10-08 16:35:09,946 INFO L138 BoogieDeclarations]: Found implementation of procedure thread29 [2020-10-08 16:35:09,947 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread28 given in one single declaration [2020-10-08 16:35:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread28 [2020-10-08 16:35:09,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread28 [2020-10-08 16:35:09,947 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread25 given in one single declaration [2020-10-08 16:35:09,947 INFO L130 BoogieDeclarations]: Found specification of procedure thread25 [2020-10-08 16:35:09,947 INFO L138 BoogieDeclarations]: Found implementation of procedure thread25 [2020-10-08 16:35:09,948 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread24 given in one single declaration [2020-10-08 16:35:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread24 [2020-10-08 16:35:09,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread24 [2020-10-08 16:35:09,948 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread27 given in one single declaration [2020-10-08 16:35:09,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread27 [2020-10-08 16:35:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure thread27 [2020-10-08 16:35:09,949 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread26 given in one single declaration [2020-10-08 16:35:09,949 INFO L130 BoogieDeclarations]: Found specification of procedure thread26 [2020-10-08 16:35:09,949 INFO L138 BoogieDeclarations]: Found implementation of procedure thread26 [2020-10-08 16:35:09,949 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread21 given in one single declaration [2020-10-08 16:35:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread21 [2020-10-08 16:35:09,950 INFO L138 BoogieDeclarations]: Found implementation of procedure thread21 [2020-10-08 16:35:09,950 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread20 given in one single declaration [2020-10-08 16:35:09,950 INFO L130 BoogieDeclarations]: Found specification of procedure thread20 [2020-10-08 16:35:09,951 INFO L138 BoogieDeclarations]: Found implementation of procedure thread20 [2020-10-08 16:35:09,952 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread23 given in one single declaration [2020-10-08 16:35:09,953 INFO L130 BoogieDeclarations]: Found specification of procedure thread23 [2020-10-08 16:35:09,953 INFO L138 BoogieDeclarations]: Found implementation of procedure thread23 [2020-10-08 16:35:09,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread22 given in one single declaration [2020-10-08 16:35:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread22 [2020-10-08 16:35:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread22 [2020-10-08 16:35:09,954 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread39 given in one single declaration [2020-10-08 16:35:09,954 INFO L130 BoogieDeclarations]: Found specification of procedure thread39 [2020-10-08 16:35:09,954 INFO L138 BoogieDeclarations]: Found implementation of procedure thread39 [2020-10-08 16:35:09,955 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2020-10-08 16:35:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-08 16:35:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-08 16:35:09,956 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2020-10-08 16:35:09,956 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-08 16:35:09,956 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-08 16:35:09,957 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2020-10-08 16:35:09,957 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-08 16:35:09,957 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-08 16:35:09,957 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2020-10-08 16:35:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2020-10-08 16:35:09,958 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2020-10-08 16:35:09,958 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2020-10-08 16:35:09,958 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2020-10-08 16:35:09,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2020-10-08 16:35:09,959 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2020-10-08 16:35:09,959 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2020-10-08 16:35:09,959 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2020-10-08 16:35:09,959 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2020-10-08 16:35:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2020-10-08 16:35:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2020-10-08 16:35:09,960 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2020-10-08 16:35:09,960 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2020-10-08 16:35:09,960 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2020-10-08 16:35:09,961 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread9 given in one single declaration [2020-10-08 16:35:09,961 INFO L130 BoogieDeclarations]: Found specification of procedure thread9 [2020-10-08 16:35:09,961 INFO L138 BoogieDeclarations]: Found implementation of procedure thread9 [2020-10-08 16:35:09,961 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread30 given in one single declaration [2020-10-08 16:35:09,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread30 [2020-10-08 16:35:09,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread30 [2020-10-08 16:35:09,962 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread36 given in one single declaration [2020-10-08 16:35:09,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread36 [2020-10-08 16:35:09,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread36 [2020-10-08 16:35:09,963 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread35 given in one single declaration [2020-10-08 16:35:09,963 INFO L130 BoogieDeclarations]: Found specification of procedure thread35 [2020-10-08 16:35:09,963 INFO L138 BoogieDeclarations]: Found implementation of procedure thread35 [2020-10-08 16:35:09,964 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread38 given in one single declaration [2020-10-08 16:35:09,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread38 [2020-10-08 16:35:09,965 INFO L138 BoogieDeclarations]: Found implementation of procedure thread38 [2020-10-08 16:35:09,965 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread37 given in one single declaration [2020-10-08 16:35:09,965 INFO L130 BoogieDeclarations]: Found specification of procedure thread37 [2020-10-08 16:35:09,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread37 [2020-10-08 16:35:09,966 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread32 given in one single declaration [2020-10-08 16:35:09,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread32 [2020-10-08 16:35:09,966 INFO L138 BoogieDeclarations]: Found implementation of procedure thread32 [2020-10-08 16:35:09,966 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread31 given in one single declaration [2020-10-08 16:35:09,966 INFO L130 BoogieDeclarations]: Found specification of procedure thread31 [2020-10-08 16:35:09,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread31 [2020-10-08 16:35:09,967 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread34 given in one single declaration [2020-10-08 16:35:09,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread34 [2020-10-08 16:35:09,967 INFO L138 BoogieDeclarations]: Found implementation of procedure thread34 [2020-10-08 16:35:09,968 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread33 given in one single declaration [2020-10-08 16:35:09,968 INFO L130 BoogieDeclarations]: Found specification of procedure thread33 [2020-10-08 16:35:09,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread33 [2020-10-08 16:35:09,969 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread41 given in one single declaration [2020-10-08 16:35:09,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread41 [2020-10-08 16:35:09,969 INFO L138 BoogieDeclarations]: Found implementation of procedure thread41 [2020-10-08 16:35:09,969 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread40 given in one single declaration [2020-10-08 16:35:09,969 INFO L130 BoogieDeclarations]: Found specification of procedure thread40 [2020-10-08 16:35:09,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread40 [2020-10-08 16:35:09,970 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread47 given in one single declaration [2020-10-08 16:35:09,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread47 [2020-10-08 16:35:09,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread47 [2020-10-08 16:35:09,970 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread46 given in one single declaration [2020-10-08 16:35:09,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread46 [2020-10-08 16:35:09,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread46 [2020-10-08 16:35:09,971 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread49 given in one single declaration [2020-10-08 16:35:09,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread49 [2020-10-08 16:35:09,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread49 [2020-10-08 16:35:09,972 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread48 given in one single declaration [2020-10-08 16:35:09,972 INFO L130 BoogieDeclarations]: Found specification of procedure thread48 [2020-10-08 16:35:09,972 INFO L138 BoogieDeclarations]: Found implementation of procedure thread48 [2020-10-08 16:35:09,972 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread43 given in one single declaration [2020-10-08 16:35:09,972 INFO L130 BoogieDeclarations]: Found specification of procedure thread43 [2020-10-08 16:35:09,973 INFO L138 BoogieDeclarations]: Found implementation of procedure thread43 [2020-10-08 16:35:09,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread42 given in one single declaration [2020-10-08 16:35:09,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread42 [2020-10-08 16:35:09,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thread42 [2020-10-08 16:35:09,977 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread45 given in one single declaration [2020-10-08 16:35:09,977 INFO L130 BoogieDeclarations]: Found specification of procedure thread45 [2020-10-08 16:35:09,977 INFO L138 BoogieDeclarations]: Found implementation of procedure thread45 [2020-10-08 16:35:09,978 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread44 given in one single declaration [2020-10-08 16:35:09,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread44 [2020-10-08 16:35:09,978 INFO L138 BoogieDeclarations]: Found implementation of procedure thread44 [2020-10-08 16:35:09,978 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread18 given in one single declaration [2020-10-08 16:35:09,978 INFO L130 BoogieDeclarations]: Found specification of procedure thread18 [2020-10-08 16:35:09,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread18 [2020-10-08 16:35:09,979 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread17 given in one single declaration [2020-10-08 16:35:09,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread17 [2020-10-08 16:35:09,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread17 [2020-10-08 16:35:09,979 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread19 given in one single declaration [2020-10-08 16:35:09,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread19 [2020-10-08 16:35:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread19 [2020-10-08 16:35:09,980 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread50 given in one single declaration [2020-10-08 16:35:09,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread50 [2020-10-08 16:35:09,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread50 [2020-10-08 16:35:09,981 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread52 given in one single declaration [2020-10-08 16:35:09,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread52 [2020-10-08 16:35:09,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread52 [2020-10-08 16:35:09,982 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread51 given in one single declaration [2020-10-08 16:35:09,982 INFO L130 BoogieDeclarations]: Found specification of procedure thread51 [2020-10-08 16:35:09,982 INFO L138 BoogieDeclarations]: Found implementation of procedure thread51 [2020-10-08 16:35:09,983 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread14 given in one single declaration [2020-10-08 16:35:09,983 INFO L130 BoogieDeclarations]: Found specification of procedure thread14 [2020-10-08 16:35:09,983 INFO L138 BoogieDeclarations]: Found implementation of procedure thread14 [2020-10-08 16:35:09,984 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread13 given in one single declaration [2020-10-08 16:35:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure thread13 [2020-10-08 16:35:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure thread13 [2020-10-08 16:35:09,984 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-10-08 16:35:09,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-08 16:35:09,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-08 16:35:09,985 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread16 given in one single declaration [2020-10-08 16:35:09,986 INFO L130 BoogieDeclarations]: Found specification of procedure thread16 [2020-10-08 16:35:09,986 INFO L138 BoogieDeclarations]: Found implementation of procedure thread16 [2020-10-08 16:35:09,986 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread15 given in one single declaration [2020-10-08 16:35:09,986 INFO L130 BoogieDeclarations]: Found specification of procedure thread15 [2020-10-08 16:35:09,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread15 [2020-10-08 16:35:09,988 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread10 given in one single declaration [2020-10-08 16:35:09,991 INFO L130 BoogieDeclarations]: Found specification of procedure thread10 [2020-10-08 16:35:09,992 INFO L138 BoogieDeclarations]: Found implementation of procedure thread10 [2020-10-08 16:35:09,993 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread12 given in one single declaration [2020-10-08 16:35:09,993 INFO L130 BoogieDeclarations]: Found specification of procedure thread12 [2020-10-08 16:35:09,999 INFO L138 BoogieDeclarations]: Found implementation of procedure thread12 [2020-10-08 16:35:09,999 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread11 given in one single declaration [2020-10-08 16:35:09,999 INFO L130 BoogieDeclarations]: Found specification of procedure thread11 [2020-10-08 16:35:10,000 INFO L138 BoogieDeclarations]: Found implementation of procedure thread11 [2020-10-08 16:35:10,002 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 16:35:10,561 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-08 16:35:10,561 INFO L298 CfgBuilder]: Removed 52 assume(true) statements. [2020-10-08 16:35:10,563 INFO L202 PluginConnector]: Adding new model example2_N=52.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:35:10 BoogieIcfgContainer [2020-10-08 16:35:10,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-08 16:35:10,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-08 16:35:10,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-08 16:35:10,574 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-08 16:35:10,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:35:09" (1/2) ... [2020-10-08 16:35:10,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9a2b3f and model type example2_N=52.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:35:10, skipping insertion in model container [2020-10-08 16:35:10,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=52.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:35:10" (2/2) ... [2020-10-08 16:35:10,578 INFO L111 eAbstractionObserver]: Analyzing ICFG example2_N=52.bpl [2020-10-08 16:35:10,592 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-08 16:35:10,604 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-08 16:35:10,605 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-08 16:35:11,728 INFO L253 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2020-10-08 16:35:11,750 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-08 16:35:11,750 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-08 16:35:11,751 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-08 16:35:11,751 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-08 16:35:11,751 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-08 16:35:11,751 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-08 16:35:11,751 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-08 16:35:11,751 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-08 16:35:11,774 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 421 places, 316 transitions, 1048 flow [2020-10-08 16:35:11,985 INFO L129 PetriNetUnfolder]: 52/264 cut-off events. [2020-10-08 16:35:11,985 INFO L130 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2020-10-08 16:35:12,004 INFO L80 FinitePrefix]: Finished finitePrefix Result has 473 conditions, 264 events. 52/264 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 353 event pairs, 0 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 309. Up to 2 conditions per place. [2020-10-08 16:35:12,004 INFO L82 GeneralOperation]: Start removeDead. Operand has 421 places, 316 transitions, 1048 flow [2020-10-08 16:35:12,020 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 367 places, 262 transitions, 836 flow [2020-10-08 16:35:12,195 INFO L129 PetriNetUnfolder]: 52/261 cut-off events. [2020-10-08 16:35:12,195 INFO L130 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2020-10-08 16:35:12,195 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-08 16:35:12,196 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-08 16:35:12,197 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr27INUSE_VIOLATION, ULTIMATE.startErr48INUSE_VIOLATION, ULTIMATE.startErr44INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr23INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr25INUSE_VIOLATION, ULTIMATE.startErr46INUSE_VIOLATION, ULTIMATE.startErr31INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr33INUSE_VIOLATION, ULTIMATE.startErr29INUSE_VIOLATION, ULTIMATE.startErr50INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr36INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr38INUSE_VIOLATION, ULTIMATE.startErr17INUSE_VIOLATION, ULTIMATE.startErr34INUSE_VIOLATION, ULTIMATE.startErr15INUSE_VIOLATION, ULTIMATE.startErr19INUSE_VIOLATION, ULTIMATE.startErr42INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr21INUSE_VIOLATION, ULTIMATE.startErr40INUSE_VIOLATION, ULTIMATE.startErr47INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr26INUSE_VIOLATION, ULTIMATE.startErr49INUSE_VIOLATION, ULTIMATE.startErr45INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr24INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr32INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr28INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr51INUSE_VIOLATION, ULTIMATE.startErr30INUSE_VIOLATION, ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr37INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr16INUSE_VIOLATION, ULTIMATE.startErr35INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr18INUSE_VIOLATION, ULTIMATE.startErr43INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr22INUSE_VIOLATION, ULTIMATE.startErr39INUSE_VIOLATION, ULTIMATE.startErr20INUSE_VIOLATION, ULTIMATE.startErr41INUSE_VIOLATION]=== [2020-10-08 16:35:12,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-08 16:35:12,204 INFO L82 PathProgramCache]: Analyzing trace with hash 269651739, now seen corresponding path program 1 times [2020-10-08 16:35:12,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-08 16:35:12,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2031267600] [2020-10-08 16:35:12,223 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 [2020-10-08 16:35:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-08 16:35:13,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 5569 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-08 16:35:13,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-08 16:35:13,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-08 16:35:13,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-08 16:35:13,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-08 16:35:13,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2031267600] [2020-10-08 16:35:13,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-08 16:35:13,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-10-08 16:35:13,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705401021] [2020-10-08 16:35:13,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-08 16:35:13,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-08 16:35:13,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-08 16:35:13,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-08 16:35:14,441 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 316 [2020-10-08 16:35:14,444 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 262 transitions, 836 flow. Second operand 3 states. [2020-10-08 16:35:14,444 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-08 16:35:14,445 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 316 [2020-10-08 16:35:14,446 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-08 16:35:14,539 INFO L129 PetriNetUnfolder]: 52/261 cut-off events. [2020-10-08 16:35:14,540 INFO L130 PetriNetUnfolder]: For 52/52 co-relation queries the response was YES. [2020-10-08 16:35:14,548 INFO L80 FinitePrefix]: Finished finitePrefix Result has 472 conditions, 261 events. 52/261 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 358 event pairs, 0 based on Foata normal form. 1/210 useless extension candidates. Maximal degree in co-relation 416. Up to 2 conditions per place. [2020-10-08 16:35:14,550 INFO L132 encePairwiseOnDemand]: 314/316 looper letters, 0 selfloop transitions, 0 changer transitions 261/261 dead transitions. [2020-10-08 16:35:14,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 261 transitions, 836 flow [2020-10-08 16:35:14,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-08 16:35:14,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-08 16:35:14,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 941 transitions. [2020-10-08 16:35:14,571 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9926160337552743 [2020-10-08 16:35:14,572 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 941 transitions. [2020-10-08 16:35:14,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 941 transitions. [2020-10-08 16:35:14,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-08 16:35:14,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 941 transitions. [2020-10-08 16:35:14,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-08 16:35:14,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-08 16:35:14,596 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-08 16:35:14,598 INFO L185 Difference]: Start difference. First operand has 367 places, 262 transitions, 836 flow. Second operand 3 states and 941 transitions. [2020-10-08 16:35:14,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 261 transitions, 836 flow [2020-10-08 16:35:14,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 261 transitions, 628 flow, removed 0 selfloop flow, removed 104 redundant places. [2020-10-08 16:35:14,614 INFO L241 Difference]: Finished difference. Result has 264 places, 0 transitions, 0 flow [2020-10-08 16:35:14,618 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=316, PETRI_DIFFERENCE_MINUEND_FLOW=626, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=261, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=264, PETRI_TRANSITIONS=0} [2020-10-08 16:35:14,619 INFO L341 CegarLoopForPetriNet]: 367 programPoint places, -103 predicate places. [2020-10-08 16:35:14,619 INFO L481 AbstractCegarLoop]: Abstraction has has 264 places, 0 transitions, 0 flow [2020-10-08 16:35:14,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-08 16:35:14,834 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-08 16:35:14,843 INFO L202 PluginConnector]: Adding new model example2_N=52.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 04:35:14 BasicIcfg [2020-10-08 16:35:14,843 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-08 16:35:14,846 INFO L168 Benchmark]: Toolchain (without parser) took 5104.41 ms. Allocated memory was 249.6 MB in the beginning and 432.0 MB in the end (delta: 182.5 MB). Free memory was 221.7 MB in the beginning and 282.8 MB in the end (delta: -61.0 MB). Peak memory consumption was 121.4 MB. Max. memory is 14.2 GB. [2020-10-08 16:35:14,847 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.44 ms. Allocated memory is still 249.6 MB. Free memory is still 224.2 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-08 16:35:14,848 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.21 ms. Allocated memory is still 249.6 MB. Free memory was 220.9 MB in the beginning and 219.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. [2020-10-08 16:35:14,849 INFO L168 Benchmark]: Boogie Preprocessor took 74.66 ms. Allocated memory is still 249.6 MB. Free memory was 219.2 MB in the beginning and 216.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-08 16:35:14,850 INFO L168 Benchmark]: RCFGBuilder took 703.05 ms. Allocated memory is still 249.6 MB. Free memory was 215.9 MB in the beginning and 171.1 MB in the end (delta: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 14.2 GB. [2020-10-08 16:35:14,851 INFO L168 Benchmark]: TraceAbstraction took 4278.91 ms. Allocated memory was 249.6 MB in the beginning and 432.0 MB in the end (delta: 182.5 MB). Free memory was 170.3 MB in the beginning and 282.8 MB in the end (delta: -112.5 MB). Peak memory consumption was 70.0 MB. Max. memory is 14.2 GB. [2020-10-08 16:35:14,855 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 0.44 ms. Allocated memory is still 249.6 MB. Free memory is still 224.2 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 43.21 ms. Allocated memory is still 249.6 MB. Free memory was 220.9 MB in the beginning and 219.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 74.66 ms. Allocated memory is still 249.6 MB. Free memory was 219.2 MB in the beginning and 216.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 703.05 ms. Allocated memory is still 249.6 MB. Free memory was 215.9 MB in the beginning and 171.1 MB in the end (delta: 44.7 MB). Peak memory consumption was 44.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 4278.91 ms. Allocated memory was 249.6 MB in the beginning and 432.0 MB in the end (delta: 182.5 MB). Free memory was 170.3 MB in the beginning and 282.8 MB in the end (delta: -112.5 MB). Peak memory consumption was 70.0 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 114]: 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 53 procedures, 265 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.1s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 107 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 209 SolverSat, 107 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 314 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=836occurred 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: 0.3s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 158 NumberOfCodeBlocks, 158 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 147894 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5569 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...