/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/fork_multiple_times.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-0e22065b97d0a1f8b3904e080cebe0f05e88d2b7-0e22065 [2021-06-10 14:37:51,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-10 14:37:51,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-10 14:37:51,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-10 14:37:51,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-10 14:37:51,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-10 14:37:51,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-10 14:37:51,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-10 14:37:51,985 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-10 14:37:51,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-10 14:37:51,990 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-10 14:37:51,991 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-10 14:37:51,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-10 14:37:51,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-10 14:37:51,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-10 14:37:51,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-10 14:37:51,998 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-10 14:37:51,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-10 14:37:52,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-10 14:37:52,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-10 14:37:52,006 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-10 14:37:52,007 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-10 14:37:52,008 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-10 14:37:52,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-10 14:37:52,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-10 14:37:52,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-10 14:37:52,016 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-10 14:37:52,018 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-10 14:37:52,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-10 14:37:52,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-10 14:37:52,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-10 14:37:52,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-10 14:37:52,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-10 14:37:52,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-10 14:37:52,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-10 14:37:52,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-10 14:37:52,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-10 14:37:52,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-10 14:37:52,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-10 14:37:52,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-10 14:37:52,024 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-10 14:37:52,028 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2021-06-10 14:37:52,061 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-10 14:37:52,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-10 14:37:52,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-10 14:37:52,064 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-10 14:37:52,064 INFO L138 SettingsManager]: * Use SBE=true [2021-06-10 14:37:52,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-10 14:37:52,064 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-10 14:37:52,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-10 14:37:52,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-10 14:37:52,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-10 14:37:52,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-10 14:37:52,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-10 14:37:52,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-10 14:37:52,066 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-10 14:37:52,066 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-10 14:37:52,066 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-10 14:37:52,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-10 14:37:52,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-10 14:37:52,067 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-10 14:37:52,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-10 14:37:52,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-10 14:37:52,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 14:37:52,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-10 14:37:52,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-10 14:37:52,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-10 14:37:52,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-10 14:37:52,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-10 14:37:52,068 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-10 14:37:52,069 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-10 14:37:52,069 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-10 14:37:52,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-10 14:37:52,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-10 14:37:52,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-10 14:37:52,402 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-10 14:37:52,403 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-10 14:37:52,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_multiple_times.bpl [2021-06-10 14:37:52,404 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_multiple_times.bpl' [2021-06-10 14:37:52,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-10 14:37:52,442 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-10 14:37:52,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-10 14:37:52,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-10 14:37:52,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-10 14:37:52,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:52" (1/1) ... [2021-06-10 14:37:52,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:52" (1/1) ... [2021-06-10 14:37:52,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-10 14:37:52,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-10 14:37:52,471 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-10 14:37:52,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-10 14:37:52,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:52" (1/1) ... [2021-06-10 14:37:52,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:52" (1/1) ... [2021-06-10 14:37:52,480 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:52" (1/1) ... [2021-06-10 14:37:52,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:52" (1/1) ... [2021-06-10 14:37:52,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:52" (1/1) ... [2021-06-10 14:37:52,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:52" (1/1) ... [2021-06-10 14:37:52,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:52" (1/1) ... [2021-06-10 14:37:52,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-10 14:37:52,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-10 14:37:52,486 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-10 14:37:52,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-10 14:37:52,489 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-10 14:37:52,541 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2021-06-10 14:37:52,541 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-06-10 14:37:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-06-10 14:37:52,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-10 14:37:52,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-10 14:37:52,542 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-10 14:37:52,636 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-10 14:37:52,636 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-10 14:37:52,637 INFO L202 PluginConnector]: Adding new model fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:37:52 BoogieIcfgContainer [2021-06-10 14:37:52,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-10 14:37:52,639 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-10 14:37:52,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-10 14:37:52,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-10 14:37:52,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.06 02:37:52" (1/2) ... [2021-06-10 14:37:52,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c3bd60 and model type fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.06 02:37:52, skipping insertion in model container [2021-06-10 14:37:52,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.06 02:37:52" (2/2) ... [2021-06-10 14:37:52,643 INFO L111 eAbstractionObserver]: Analyzing ICFG fork_multiple_times.bpl [2021-06-10 14:37:52,648 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-10 14:37:52,651 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-06-10 14:37:52,652 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-10 14:37:52,670 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:52,670 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:52,671 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:52,671 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:52,671 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:52,671 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:52,673 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:52,677 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:52,679 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-10 14:37:52,688 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-06-10 14:37:52,706 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-06-10 14:37:52,730 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-06-10 14:37:52,730 INFO L377 AbstractCegarLoop]: Hoare is false [2021-06-10 14:37:52,730 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-10 14:37:52,730 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-10 14:37:52,730 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-10 14:37:52,730 INFO L381 AbstractCegarLoop]: Difference is false [2021-06-10 14:37:52,731 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-10 14:37:52,731 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-10 14:37:52,739 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 22 transitions, 77 flow [2021-06-10 14:37:52,753 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-06-10 14:37:52,753 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 14:37:52,755 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 10 events. 0/10 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 0/10 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-06-10 14:37:52,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 22 transitions, 77 flow [2021-06-10 14:37:52,757 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-06-10 14:37:52,758 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-06-10 14:37:52,758 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-06-10 14:37:52,762 INFO L202 PluginConnector]: Adding new model fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.06 02:37:52 BasicIcfg [2021-06-10 14:37:52,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-10 14:37:52,764 INFO L168 Benchmark]: Toolchain (without parser) took 321.32 ms. Allocated memory is still 364.9 MB. Free memory was 344.2 MB in the beginning and 324.3 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.0 GB. [2021-06-10 14:37:52,765 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 364.9 MB. Free memory was 345.2 MB in the beginning and 345.1 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:37:52,765 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.16 ms. Allocated memory is still 364.9 MB. Free memory was 344.1 MB in the beginning and 342.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-10 14:37:52,766 INFO L168 Benchmark]: Boogie Preprocessor took 14.37 ms. Allocated memory is still 364.9 MB. Free memory was 342.6 MB in the beginning and 341.8 MB in the end (delta: 856.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-10 14:37:52,767 INFO L168 Benchmark]: RCFGBuilder took 151.29 ms. Allocated memory is still 364.9 MB. Free memory was 341.7 MB in the beginning and 333.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-06-10 14:37:52,768 INFO L168 Benchmark]: TraceAbstraction took 123.75 ms. Allocated memory is still 364.9 MB. Free memory was 333.1 MB in the beginning and 324.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-06-10 14:37:52,770 INFO L339 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 0.13 ms. Allocated memory is still 364.9 MB. Free memory was 345.2 MB in the beginning and 345.1 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.16 ms. Allocated memory is still 364.9 MB. Free memory was 344.1 MB in the beginning and 342.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 14.37 ms. Allocated memory is still 364.9 MB. Free memory was 342.6 MB in the beginning and 341.8 MB in the end (delta: 856.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 151.29 ms. Allocated memory is still 364.9 MB. Free memory was 341.7 MB in the beginning and 333.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 123.75 ms. Allocated memory is still 364.9 MB. Free memory was 333.1 MB in the beginning and 324.3 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 27]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 32.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 26.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...