/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=39.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-08 16:34:56,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-08 16:34:56,520 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-08 16:34:56,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-08 16:34:56,551 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-08 16:34:56,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-08 16:34:56,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-08 16:34:56,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-08 16:34:56,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-08 16:34:56,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-08 16:34:56,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-08 16:34:56,560 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-08 16:34:56,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-08 16:34:56,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-08 16:34:56,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-08 16:34:56,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-08 16:34:56,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-08 16:34:56,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-08 16:34:56,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-08 16:34:56,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-08 16:34:56,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-08 16:34:56,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-08 16:34:56,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-08 16:34:56,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-08 16:34:56,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-08 16:34:56,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-08 16:34:56,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-08 16:34:56,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-08 16:34:56,578 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-08 16:34:56,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-08 16:34:56,579 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-08 16:34:56,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-08 16:34:56,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-08 16:34:56,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-08 16:34:56,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-08 16:34:56,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-08 16:34:56,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-08 16:34:56,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-08 16:34:56,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-08 16:34:56,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-08 16:34:56,586 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-08 16:34:56,586 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 16:34:56,609 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-08 16:34:56,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-08 16:34:56,610 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-08 16:34:56,610 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-08 16:34:56,611 INFO L138 SettingsManager]: * Use SBE=true [2020-10-08 16:34:56,611 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-08 16:34:56,611 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-08 16:34:56,611 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-08 16:34:56,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-08 16:34:56,612 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-08 16:34:56,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-08 16:34:56,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-08 16:34:56,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-08 16:34:56,612 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-08 16:34:56,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-08 16:34:56,613 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-08 16:34:56,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-08 16:34:56,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-08 16:34:56,613 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-08 16:34:56,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-08 16:34:56,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-08 16:34:56,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-08 16:34:56,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-08 16:34:56,614 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-08 16:34:56,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-08 16:34:56,615 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-08 16:34:56,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-08 16:34:56,615 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-08 16:34:56,615 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-08 16:34:56,616 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-08 16:34:56,945 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-08 16:34:56,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-08 16:34:56,969 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-08 16:34:56,971 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-10-08 16:34:56,973 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-10-08 16:34:56,974 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=39.bpl [2020-10-08 16:34:56,976 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=39.bpl' [2020-10-08 16:34:57,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-08 16:34:57,049 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-08 16:34:57,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-08 16:34:57,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-08 16:34:57,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-08 16:34:57,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:57" (1/1) ... [2020-10-08 16:34:57,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:57" (1/1) ... [2020-10-08 16:34:57,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-08 16:34:57,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-08 16:34:57,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-08 16:34:57,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-08 16:34:57,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:57" (1/1) ... [2020-10-08 16:34:57,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:57" (1/1) ... [2020-10-08 16:34:57,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:57" (1/1) ... [2020-10-08 16:34:57,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:57" (1/1) ... [2020-10-08 16:34:57,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:57" (1/1) ... [2020-10-08 16:34:57,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:57" (1/1) ... [2020-10-08 16:34:57,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:57" (1/1) ... [2020-10-08 16:34:57,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-08 16:34:57,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-08 16:34:57,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-08 16:34:57,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-08 16:34:57,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:57" (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 16:34:57,250 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread29 given in one single declaration [2020-10-08 16:34:57,251 INFO L130 BoogieDeclarations]: Found specification of procedure thread29 [2020-10-08 16:34:57,252 INFO L138 BoogieDeclarations]: Found implementation of procedure thread29 [2020-10-08 16:34:57,253 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread28 given in one single declaration [2020-10-08 16:34:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure thread28 [2020-10-08 16:34:57,253 INFO L138 BoogieDeclarations]: Found implementation of procedure thread28 [2020-10-08 16:34:57,253 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread25 given in one single declaration [2020-10-08 16:34:57,253 INFO L130 BoogieDeclarations]: Found specification of procedure thread25 [2020-10-08 16:34:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure thread25 [2020-10-08 16:34:57,254 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread24 given in one single declaration [2020-10-08 16:34:57,254 INFO L130 BoogieDeclarations]: Found specification of procedure thread24 [2020-10-08 16:34:57,254 INFO L138 BoogieDeclarations]: Found implementation of procedure thread24 [2020-10-08 16:34:57,255 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread27 given in one single declaration [2020-10-08 16:34:57,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread27 [2020-10-08 16:34:57,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thread27 [2020-10-08 16:34:57,255 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread26 given in one single declaration [2020-10-08 16:34:57,256 INFO L130 BoogieDeclarations]: Found specification of procedure thread26 [2020-10-08 16:34:57,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thread26 [2020-10-08 16:34:57,256 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread21 given in one single declaration [2020-10-08 16:34:57,257 INFO L130 BoogieDeclarations]: Found specification of procedure thread21 [2020-10-08 16:34:57,257 INFO L138 BoogieDeclarations]: Found implementation of procedure thread21 [2020-10-08 16:34:57,257 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread20 given in one single declaration [2020-10-08 16:34:57,258 INFO L130 BoogieDeclarations]: Found specification of procedure thread20 [2020-10-08 16:34:57,258 INFO L138 BoogieDeclarations]: Found implementation of procedure thread20 [2020-10-08 16:34:57,265 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread23 given in one single declaration [2020-10-08 16:34:57,266 INFO L130 BoogieDeclarations]: Found specification of procedure thread23 [2020-10-08 16:34:57,266 INFO L138 BoogieDeclarations]: Found implementation of procedure thread23 [2020-10-08 16:34:57,268 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread22 given in one single declaration [2020-10-08 16:34:57,268 INFO L130 BoogieDeclarations]: Found specification of procedure thread22 [2020-10-08 16:34:57,268 INFO L138 BoogieDeclarations]: Found implementation of procedure thread22 [2020-10-08 16:34:57,268 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread18 given in one single declaration [2020-10-08 16:34:57,269 INFO L130 BoogieDeclarations]: Found specification of procedure thread18 [2020-10-08 16:34:57,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thread18 [2020-10-08 16:34:57,269 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread39 given in one single declaration [2020-10-08 16:34:57,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread39 [2020-10-08 16:34:57,270 INFO L138 BoogieDeclarations]: Found implementation of procedure thread39 [2020-10-08 16:34:57,271 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread17 given in one single declaration [2020-10-08 16:34:57,271 INFO L130 BoogieDeclarations]: Found specification of procedure thread17 [2020-10-08 16:34:57,271 INFO L138 BoogieDeclarations]: Found implementation of procedure thread17 [2020-10-08 16:34:57,271 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread19 given in one single declaration [2020-10-08 16:34:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread19 [2020-10-08 16:34:57,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread19 [2020-10-08 16:34:57,272 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2020-10-08 16:34:57,272 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-08 16:34:57,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-08 16:34:57,273 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2020-10-08 16:34:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-08 16:34:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-08 16:34:57,273 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2020-10-08 16:34:57,273 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-08 16:34:57,273 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-08 16:34:57,274 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2020-10-08 16:34:57,274 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2020-10-08 16:34:57,274 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2020-10-08 16:34:57,275 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2020-10-08 16:34:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2020-10-08 16:34:57,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2020-10-08 16:34:57,275 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2020-10-08 16:34:57,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2020-10-08 16:34:57,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2020-10-08 16:34:57,276 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2020-10-08 16:34:57,276 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2020-10-08 16:34:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2020-10-08 16:34:57,277 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2020-10-08 16:34:57,277 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2020-10-08 16:34:57,277 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2020-10-08 16:34:57,278 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread9 given in one single declaration [2020-10-08 16:34:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure thread9 [2020-10-08 16:34:57,279 INFO L138 BoogieDeclarations]: Found implementation of procedure thread9 [2020-10-08 16:34:57,279 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread30 given in one single declaration [2020-10-08 16:34:57,279 INFO L130 BoogieDeclarations]: Found specification of procedure thread30 [2020-10-08 16:34:57,279 INFO L138 BoogieDeclarations]: Found implementation of procedure thread30 [2020-10-08 16:34:57,280 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread36 given in one single declaration [2020-10-08 16:34:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure thread36 [2020-10-08 16:34:57,280 INFO L138 BoogieDeclarations]: Found implementation of procedure thread36 [2020-10-08 16:34:57,280 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread14 given in one single declaration [2020-10-08 16:34:57,280 INFO L130 BoogieDeclarations]: Found specification of procedure thread14 [2020-10-08 16:34:57,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread14 [2020-10-08 16:34:57,281 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread35 given in one single declaration [2020-10-08 16:34:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread35 [2020-10-08 16:34:57,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread35 [2020-10-08 16:34:57,281 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread13 given in one single declaration [2020-10-08 16:34:57,281 INFO L130 BoogieDeclarations]: Found specification of procedure thread13 [2020-10-08 16:34:57,282 INFO L138 BoogieDeclarations]: Found implementation of procedure thread13 [2020-10-08 16:34:57,282 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-10-08 16:34:57,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-08 16:34:57,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-08 16:34:57,284 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread38 given in one single declaration [2020-10-08 16:34:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure thread38 [2020-10-08 16:34:57,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thread38 [2020-10-08 16:34:57,284 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread16 given in one single declaration [2020-10-08 16:34:57,284 INFO L130 BoogieDeclarations]: Found specification of procedure thread16 [2020-10-08 16:34:57,284 INFO L138 BoogieDeclarations]: Found implementation of procedure thread16 [2020-10-08 16:34:57,285 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread37 given in one single declaration [2020-10-08 16:34:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure thread37 [2020-10-08 16:34:57,285 INFO L138 BoogieDeclarations]: Found implementation of procedure thread37 [2020-10-08 16:34:57,285 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread15 given in one single declaration [2020-10-08 16:34:57,285 INFO L130 BoogieDeclarations]: Found specification of procedure thread15 [2020-10-08 16:34:57,285 INFO L138 BoogieDeclarations]: Found implementation of procedure thread15 [2020-10-08 16:34:57,286 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread32 given in one single declaration [2020-10-08 16:34:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread32 [2020-10-08 16:34:57,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread32 [2020-10-08 16:34:57,286 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread10 given in one single declaration [2020-10-08 16:34:57,286 INFO L130 BoogieDeclarations]: Found specification of procedure thread10 [2020-10-08 16:34:57,286 INFO L138 BoogieDeclarations]: Found implementation of procedure thread10 [2020-10-08 16:34:57,287 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread31 given in one single declaration [2020-10-08 16:34:57,287 INFO L130 BoogieDeclarations]: Found specification of procedure thread31 [2020-10-08 16:34:57,287 INFO L138 BoogieDeclarations]: Found implementation of procedure thread31 [2020-10-08 16:34:57,288 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread34 given in one single declaration [2020-10-08 16:34:57,288 INFO L130 BoogieDeclarations]: Found specification of procedure thread34 [2020-10-08 16:34:57,291 INFO L138 BoogieDeclarations]: Found implementation of procedure thread34 [2020-10-08 16:34:57,291 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread12 given in one single declaration [2020-10-08 16:34:57,291 INFO L130 BoogieDeclarations]: Found specification of procedure thread12 [2020-10-08 16:34:57,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread12 [2020-10-08 16:34:57,292 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread33 given in one single declaration [2020-10-08 16:34:57,292 INFO L130 BoogieDeclarations]: Found specification of procedure thread33 [2020-10-08 16:34:57,292 INFO L138 BoogieDeclarations]: Found implementation of procedure thread33 [2020-10-08 16:34:57,293 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread11 given in one single declaration [2020-10-08 16:34:57,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread11 [2020-10-08 16:34:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread11 [2020-10-08 16:34:57,295 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 16:34:57,840 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-08 16:34:57,840 INFO L298 CfgBuilder]: Removed 39 assume(true) statements. [2020-10-08 16:34:57,843 INFO L202 PluginConnector]: Adding new model example2_N=39.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:34:57 BoogieIcfgContainer [2020-10-08 16:34:57,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-08 16:34:57,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-08 16:34:57,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-08 16:34:57,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-08 16:34:57,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 04:34:57" (1/2) ... [2020-10-08 16:34:57,849 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16437b3b and model type example2_N=39.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 04:34:57, skipping insertion in model container [2020-10-08 16:34:57,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=39.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 04:34:57" (2/2) ... [2020-10-08 16:34:57,851 INFO L111 eAbstractionObserver]: Analyzing ICFG example2_N=39.bpl [2020-10-08 16:34:57,867 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-08 16:34:57,883 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-08 16:34:57,884 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-08 16:34:58,673 INFO L253 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2020-10-08 16:34:58,699 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-08 16:34:58,699 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-08 16:34:58,699 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-08 16:34:58,699 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-08 16:34:58,699 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-08 16:34:58,700 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-08 16:34:58,700 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-08 16:34:58,700 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-08 16:34:58,724 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 317 places, 238 transitions, 788 flow [2020-10-08 16:34:58,855 INFO L129 PetriNetUnfolder]: 39/199 cut-off events. [2020-10-08 16:34:58,856 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2020-10-08 16:34:58,870 INFO L80 FinitePrefix]: Finished finitePrefix Result has 356 conditions, 199 events. 39/199 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 259 event pairs, 0 based on Foata normal form. 0/159 useless extension candidates. Maximal degree in co-relation 231. Up to 2 conditions per place. [2020-10-08 16:34:58,870 INFO L82 GeneralOperation]: Start removeDead. Operand has 317 places, 238 transitions, 788 flow [2020-10-08 16:34:58,885 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 276 places, 197 transitions, 628 flow [2020-10-08 16:34:59,019 INFO L129 PetriNetUnfolder]: 39/196 cut-off events. [2020-10-08 16:34:59,022 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2020-10-08 16:34:59,023 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-08 16:34:59,025 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] [2020-10-08 16:34:59,025 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr26INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr27INUSE_VIOLATION, ULTIMATE.startErr6INUSE_VIOLATION, ULTIMATE.startErr23INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr24INUSE_VIOLATION, ULTIMATE.startErr4INUSE_VIOLATION, ULTIMATE.startErr25INUSE_VIOLATION, ULTIMATE.startErr9INUSE_VIOLATION, ULTIMATE.startErr31INUSE_VIOLATION, ULTIMATE.startErr8INUSE_VIOLATION, ULTIMATE.startErr32INUSE_VIOLATION, ULTIMATE.startErr7INUSE_VIOLATION, ULTIMATE.startErr33INUSE_VIOLATION, ULTIMATE.startErr28INUSE_VIOLATION, ULTIMATE.startErr11INUSE_VIOLATION, ULTIMATE.startErr29INUSE_VIOLATION, ULTIMATE.startErr10INUSE_VIOLATION, ULTIMATE.startErr30INUSE_VIOLATION, ULTIMATE.startErr36INUSE_VIOLATION, ULTIMATE.startErr14INUSE_VIOLATION, ULTIMATE.startErr37INUSE_VIOLATION, ULTIMATE.startErr13INUSE_VIOLATION, ULTIMATE.startErr38INUSE_VIOLATION, ULTIMATE.startErr12INUSE_VIOLATION, ULTIMATE.startErr17INUSE_VIOLATION, ULTIMATE.startErr34INUSE_VIOLATION, ULTIMATE.startErr16INUSE_VIOLATION, ULTIMATE.startErr35INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr15INUSE_VIOLATION, ULTIMATE.startErr19INUSE_VIOLATION, ULTIMATE.startErr18INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr22INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr21INUSE_VIOLATION, ULTIMATE.startErr20INUSE_VIOLATION]=== [2020-10-08 16:34:59,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-08 16:34:59,041 INFO L82 PathProgramCache]: Analyzing trace with hash 1601625374, now seen corresponding path program 1 times [2020-10-08 16:34:59,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-08 16:34:59,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [772579463] [2020-10-08 16:34:59,064 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 16:34:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-08 16:34:59,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 3164 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-08 16:34:59,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-08 16:34:59,886 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 16:34:59,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-08 16:34:59,921 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 16:34:59,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [772579463] [2020-10-08 16:34:59,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-08 16:34:59,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2020-10-08 16:34:59,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923895726] [2020-10-08 16:34:59,936 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-08 16:34:59,936 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-08 16:34:59,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-08 16:34:59,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-08 16:35:00,472 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 235 out of 238 [2020-10-08 16:35:00,476 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 276 places, 197 transitions, 628 flow. Second operand 3 states. [2020-10-08 16:35:00,476 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-08 16:35:00,476 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 235 of 238 [2020-10-08 16:35:00,478 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-08 16:35:00,555 INFO L129 PetriNetUnfolder]: 39/196 cut-off events. [2020-10-08 16:35:00,555 INFO L130 PetriNetUnfolder]: For 39/39 co-relation queries the response was YES. [2020-10-08 16:35:00,561 INFO L80 FinitePrefix]: Finished finitePrefix Result has 355 conditions, 196 events. 39/196 cut-off events. For 39/39 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 276 event pairs, 0 based on Foata normal form. 1/158 useless extension candidates. Maximal degree in co-relation 312. Up to 2 conditions per place. [2020-10-08 16:35:00,562 INFO L132 encePairwiseOnDemand]: 236/238 looper letters, 0 selfloop transitions, 0 changer transitions 196/196 dead transitions. [2020-10-08 16:35:00,563 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 196 transitions, 628 flow [2020-10-08 16:35:00,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-08 16:35:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-08 16:35:00,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 707 transitions. [2020-10-08 16:35:00,582 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9901960784313726 [2020-10-08 16:35:00,583 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 707 transitions. [2020-10-08 16:35:00,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 707 transitions. [2020-10-08 16:35:00,587 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-08 16:35:00,590 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 707 transitions. [2020-10-08 16:35:00,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-08 16:35:00,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-08 16:35:00,609 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-08 16:35:00,612 INFO L185 Difference]: Start difference. First operand has 276 places, 197 transitions, 628 flow. Second operand 3 states and 707 transitions. [2020-10-08 16:35:00,613 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 196 transitions, 628 flow [2020-10-08 16:35:00,625 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 196 transitions, 472 flow, removed 0 selfloop flow, removed 78 redundant places. [2020-10-08 16:35:00,629 INFO L241 Difference]: Finished difference. Result has 199 places, 0 transitions, 0 flow [2020-10-08 16:35:00,632 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=238, PETRI_DIFFERENCE_MINUEND_FLOW=470, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=199, PETRI_TRANSITIONS=0} [2020-10-08 16:35:00,633 INFO L341 CegarLoopForPetriNet]: 276 programPoint places, -77 predicate places. [2020-10-08 16:35:00,634 INFO L481 AbstractCegarLoop]: Abstraction has has 199 places, 0 transitions, 0 flow [2020-10-08 16:35:00,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-08 16:35:00,848 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-08 16:35:00,855 INFO L202 PluginConnector]: Adding new model example2_N=39.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 04:35:00 BasicIcfg [2020-10-08 16:35:00,855 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-08 16:35:00,858 INFO L168 Benchmark]: Toolchain (without parser) took 3809.51 ms. Allocated memory was 244.3 MB in the beginning and 317.7 MB in the end (delta: 73.4 MB). Free memory was 218.2 MB in the beginning and 92.5 MB in the end (delta: 125.7 MB). Peak memory consumption was 199.1 MB. Max. memory is 14.2 GB. [2020-10-08 16:35:00,859 INFO L168 Benchmark]: Boogie PL CUP Parser took 1.44 ms. Allocated memory is still 244.3 MB. Free memory is still 220.7 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-08 16:35:00,860 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.93 ms. Allocated memory is still 244.3 MB. Free memory was 218.2 MB in the beginning and 215.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-08 16:35:00,861 INFO L168 Benchmark]: Boogie Preprocessor took 74.98 ms. Allocated memory is still 244.3 MB. Free memory was 215.7 MB in the beginning and 213.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-08 16:35:00,861 INFO L168 Benchmark]: RCFGBuilder took 664.24 ms. Allocated memory is still 244.3 MB. Free memory was 213.1 MB in the beginning and 177.9 MB in the end (delta: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 14.2 GB. [2020-10-08 16:35:00,864 INFO L168 Benchmark]: TraceAbstraction took 3011.22 ms. Allocated memory was 244.3 MB in the beginning and 317.7 MB in the end (delta: 73.4 MB). Free memory was 177.9 MB in the beginning and 92.5 MB in the end (delta: 85.4 MB). Peak memory consumption was 158.8 MB. Max. memory is 14.2 GB. [2020-10-08 16:35:00,873 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 1.44 ms. Allocated memory is still 244.3 MB. Free memory is still 220.7 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 53.93 ms. Allocated memory is still 244.3 MB. Free memory was 218.2 MB in the beginning and 215.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 74.98 ms. Allocated memory is still 244.3 MB. Free memory was 215.7 MB in the beginning and 213.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 664.24 ms. Allocated memory is still 244.3 MB. Free memory was 213.1 MB in the beginning and 177.9 MB in the end (delta: 35.3 MB). Peak memory consumption was 35.3 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3011.22 ms. Allocated memory was 244.3 MB in the beginning and 317.7 MB in the end (delta: 73.4 MB). Free memory was 177.9 MB in the beginning and 92.5 MB in the end (delta: 85.4 MB). Peak memory consumption was 158.8 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 88]: 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 40 procedures, 200 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: 2.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 81 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 157 SolverSat, 81 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 236 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=628occurred 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 236 ConstructedInterpolants, 0 QuantifiedInterpolants, 83544 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3164 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...