/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=19.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-08 13:28:33,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-08 13:28:33,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-08 13:28:33,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-08 13:28:33,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-08 13:28:33,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-08 13:28:33,797 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-08 13:28:33,801 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-08 13:28:33,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-08 13:28:33,805 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-08 13:28:33,806 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-08 13:28:33,807 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-08 13:28:33,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-08 13:28:33,808 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-08 13:28:33,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-08 13:28:33,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-08 13:28:33,811 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-08 13:28:33,812 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-08 13:28:33,813 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-08 13:28:33,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-08 13:28:33,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-08 13:28:33,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-08 13:28:33,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-08 13:28:33,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-08 13:28:33,821 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-08 13:28:33,822 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-08 13:28:33,822 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-08 13:28:33,823 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-08 13:28:33,823 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-08 13:28:33,824 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-08 13:28:33,824 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-08 13:28:33,825 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-08 13:28:33,826 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-08 13:28:33,826 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-08 13:28:33,827 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-08 13:28:33,827 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-08 13:28:33,828 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-08 13:28:33,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-08 13:28:33,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-08 13:28:33,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-08 13:28:33,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-08 13:28:33,831 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-08 13:28:33,853 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-08 13:28:33,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-08 13:28:33,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-08 13:28:33,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-08 13:28:33,855 INFO L138 SettingsManager]: * Use SBE=true [2020-10-08 13:28:33,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-08 13:28:33,855 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-08 13:28:33,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-08 13:28:33,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-08 13:28:33,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-08 13:28:33,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-08 13:28:33,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-08 13:28:33,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-08 13:28:33,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-08 13:28:33,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-08 13:28:33,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-08 13:28:33,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-08 13:28:33,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-08 13:28:33,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-08 13:28:33,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-08 13:28:33,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-08 13:28:33,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-08 13:28:33,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-08 13:28:33,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-08 13:28:33,862 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-08 13:28:33,862 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-08 13:28:33,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-08 13:28:33,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-08 13:28:33,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-08 13:28:33,863 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-08 13:28:34,177 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-08 13:28:34,188 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-08 13:28:34,192 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-08 13:28:34,193 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2020-10-08 13:28:34,194 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2020-10-08 13:28:34,194 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=19.bpl [2020-10-08 13:28:34,195 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/VMCAI2021/generated/example2_N=19.bpl' [2020-10-08 13:28:34,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-08 13:28:34,245 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-08 13:28:34,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-08 13:28:34,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-08 13:28:34,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-08 13:28:34,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:34" (1/1) ... [2020-10-08 13:28:34,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:34" (1/1) ... [2020-10-08 13:28:34,283 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-08 13:28:34,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-08 13:28:34,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-08 13:28:34,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-08 13:28:34,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:34" (1/1) ... [2020-10-08 13:28:34,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:34" (1/1) ... [2020-10-08 13:28:34,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:34" (1/1) ... [2020-10-08 13:28:34,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:34" (1/1) ... [2020-10-08 13:28:34,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:34" (1/1) ... [2020-10-08 13:28:34,311 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:34" (1/1) ... [2020-10-08 13:28:34,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:34" (1/1) ... [2020-10-08 13:28:34,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-08 13:28:34,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-08 13:28:34,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-08 13:28:34,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-08 13:28:34,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-08 13:28:34,397 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread18 given in one single declaration [2020-10-08 13:28:34,397 INFO L130 BoogieDeclarations]: Found specification of procedure thread18 [2020-10-08 13:28:34,399 INFO L138 BoogieDeclarations]: Found implementation of procedure thread18 [2020-10-08 13:28:34,400 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread17 given in one single declaration [2020-10-08 13:28:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure thread17 [2020-10-08 13:28:34,400 INFO L138 BoogieDeclarations]: Found implementation of procedure thread17 [2020-10-08 13:28:34,401 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread19 given in one single declaration [2020-10-08 13:28:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread19 [2020-10-08 13:28:34,401 INFO L138 BoogieDeclarations]: Found implementation of procedure thread19 [2020-10-08 13:28:34,401 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2020-10-08 13:28:34,401 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-08 13:28:34,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-08 13:28:34,402 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2020-10-08 13:28:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-08 13:28:34,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-08 13:28:34,403 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2020-10-08 13:28:34,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-08 13:28:34,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-08 13:28:34,404 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2020-10-08 13:28:34,404 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2020-10-08 13:28:34,405 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2020-10-08 13:28:34,405 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2020-10-08 13:28:34,405 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2020-10-08 13:28:34,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2020-10-08 13:28:34,414 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2020-10-08 13:28:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2020-10-08 13:28:34,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2020-10-08 13:28:34,417 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2020-10-08 13:28:34,417 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2020-10-08 13:28:34,417 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2020-10-08 13:28:34,417 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread8 given in one single declaration [2020-10-08 13:28:34,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread8 [2020-10-08 13:28:34,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread8 [2020-10-08 13:28:34,419 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread9 given in one single declaration [2020-10-08 13:28:34,419 INFO L130 BoogieDeclarations]: Found specification of procedure thread9 [2020-10-08 13:28:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread9 [2020-10-08 13:28:34,420 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread14 given in one single declaration [2020-10-08 13:28:34,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread14 [2020-10-08 13:28:34,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread14 [2020-10-08 13:28:34,421 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread13 given in one single declaration [2020-10-08 13:28:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure thread13 [2020-10-08 13:28:34,421 INFO L138 BoogieDeclarations]: Found implementation of procedure thread13 [2020-10-08 13:28:34,421 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2020-10-08 13:28:34,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-08 13:28:34,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-08 13:28:34,422 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread16 given in one single declaration [2020-10-08 13:28:34,422 INFO L130 BoogieDeclarations]: Found specification of procedure thread16 [2020-10-08 13:28:34,423 INFO L138 BoogieDeclarations]: Found implementation of procedure thread16 [2020-10-08 13:28:34,423 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread15 given in one single declaration [2020-10-08 13:28:34,423 INFO L130 BoogieDeclarations]: Found specification of procedure thread15 [2020-10-08 13:28:34,423 INFO L138 BoogieDeclarations]: Found implementation of procedure thread15 [2020-10-08 13:28:34,424 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread10 given in one single declaration [2020-10-08 13:28:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure thread10 [2020-10-08 13:28:34,424 INFO L138 BoogieDeclarations]: Found implementation of procedure thread10 [2020-10-08 13:28:34,424 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread12 given in one single declaration [2020-10-08 13:28:34,424 INFO L130 BoogieDeclarations]: Found specification of procedure thread12 [2020-10-08 13:28:34,425 INFO L138 BoogieDeclarations]: Found implementation of procedure thread12 [2020-10-08 13:28:34,425 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread11 given in one single declaration [2020-10-08 13:28:34,425 INFO L130 BoogieDeclarations]: Found specification of procedure thread11 [2020-10-08 13:28:34,426 INFO L138 BoogieDeclarations]: Found implementation of procedure thread11 [2020-10-08 13:28:34,427 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-08 13:28:34,742 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-08 13:28:34,742 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-10-08 13:28:34,745 INFO L202 PluginConnector]: Adding new model example2_N=19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 01:28:34 BoogieIcfgContainer [2020-10-08 13:28:34,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-08 13:28:34,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-08 13:28:34,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-08 13:28:34,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-08 13:28:34,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.10 01:28:34" (1/2) ... [2020-10-08 13:28:34,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5487ee0e and model type example2_N=19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.10 01:28:34, skipping insertion in model container [2020-10-08 13:28:34,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example2_N=19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.10 01:28:34" (2/2) ... [2020-10-08 13:28:34,755 INFO L111 eAbstractionObserver]: Analyzing ICFG example2_N=19.bpl [2020-10-08 13:28:34,768 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-08 13:28:34,768 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-08 13:28:34,780 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-08 13:28:34,782 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-08 13:28:35,121 INFO L253 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2020-10-08 13:28:35,144 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-08 13:28:35,144 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-08 13:28:35,144 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-08 13:28:35,144 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-08 13:28:35,144 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-08 13:28:35,145 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-08 13:28:35,145 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-08 13:28:35,145 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-08 13:28:35,166 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-08 13:28:35,169 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 157 places, 118 transitions, 388 flow [2020-10-08 13:28:35,172 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 157 places, 118 transitions, 388 flow [2020-10-08 13:28:35,174 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 157 places, 118 transitions, 388 flow [2020-10-08 13:28:35,271 INFO L129 PetriNetUnfolder]: 19/99 cut-off events. [2020-10-08 13:28:35,271 INFO L130 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2020-10-08 13:28:35,291 INFO L80 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 99 events. 19/99 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 125 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2020-10-08 13:28:35,302 INFO L117 LiptonReduction]: Number of co-enabled transitions 5130 [2020-10-08 13:28:35,883 INFO L132 LiptonReduction]: Checked pairs total: 8010 [2020-10-08 13:28:35,883 INFO L134 LiptonReduction]: Total number of compositions: 2 [2020-10-08 13:28:35,891 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 155 places, 116 transitions, 384 flow Received shutdown request... [2020-10-08 13:42:26,277 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-08 13:42:26,280 WARN L235 ceAbstractionStarter]: Timeout [2020-10-08 13:42:26,281 INFO L202 PluginConnector]: Adding new model example2_N=19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.10 01:42:26 BasicIcfg [2020-10-08 13:42:26,281 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-08 13:42:26,290 INFO L168 Benchmark]: Toolchain (without parser) took 832038.00 ms. Allocated memory was 250.6 MB in the beginning and 6.2 GB in the end (delta: 5.9 GB). Free memory was 227.0 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 5.5 GB. Max. memory is 14.2 GB. [2020-10-08 13:42:26,292 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-08 13:42:26,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.68 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-08 13:42:26,303 INFO L168 Benchmark]: Boogie Preprocessor took 32.09 ms. Allocated memory is still 250.6 MB. Free memory was 224.5 MB in the beginning and 222.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-08 13:42:26,306 INFO L168 Benchmark]: RCFGBuilder took 429.31 ms. Allocated memory is still 250.6 MB. Free memory was 222.0 MB in the beginning and 199.3 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 14.2 GB. [2020-10-08 13:42:26,307 INFO L168 Benchmark]: TraceAbstraction took 831534.09 ms. Allocated memory was 250.6 MB in the beginning and 6.2 GB in the end (delta: 5.9 GB). Free memory was 199.3 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 5.5 GB. Max. memory is 14.2 GB. [2020-10-08 13:42:26,311 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 250.6 MB. Free memory is still 227.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 37.68 ms. Allocated memory is still 250.6 MB. Free memory is still 224.5 MB. There was no memory consumed. Max. memory is 14.2 GB. * Boogie Preprocessor took 32.09 ms. Allocated memory is still 250.6 MB. Free memory was 224.5 MB in the beginning and 222.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 429.31 ms. Allocated memory is still 250.6 MB. Free memory was 222.0 MB in the beginning and 199.3 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 831534.09 ms. Allocated memory was 250.6 MB in the beginning and 6.2 GB in the end (delta: 5.9 GB). Free memory was 199.3 MB in the beginning and 1.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 5.5 GB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1405 VarBasedMoverChecksPositive, 90 VarBasedMoverChecksNegative, 54 SemBasedMoverChecksPositive, 36 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 1421 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.7s, 157 PlacesBefore, 155 PlacesAfterwards, 118 TransitionsBefore, 116 TransitionsAfterwards, 5130 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, 8010 MoverChecksTotal - TimeoutResultAtElement [Line: 48]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 48). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 155 places, 116 transitions, 384 flow. Already constructed 658804 states. Currently 329928 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 20 procedures, 100 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 831.1s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 831.1s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown