/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-VariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/fork_multiple_times.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 13:30:17,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 13:30:17,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 13:30:17,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-24 13:30:17,518 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-24 13:30:17,521 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-24 13:30:17,522 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-24 13:30:17,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-24 13:30:17,527 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-24 13:30:17,531 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-24 13:30:17,532 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-24 13:30:17,533 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-24 13:30:17,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-24 13:30:17,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-24 13:30:17,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-24 13:30:17,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-24 13:30:17,538 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-24 13:30:17,539 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-24 13:30:17,541 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-24 13:30:17,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-24 13:30:17,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-24 13:30:17,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-24 13:30:17,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-24 13:30:17,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-24 13:30:17,552 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-24 13:30:17,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-24 13:30:17,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-24 13:30:17,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-24 13:30:17,554 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-24 13:30:17,555 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-24 13:30:17,555 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-24 13:30:17,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-24 13:30:17,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-24 13:30:17,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 13:30:17,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 13:30:17,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 13:30:17,562 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-VariableLbe.epf [2021-03-24 13:30:17,582 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 13:30:17,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 13:30:17,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 13:30:17,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 13:30:17,585 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 13:30:17,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 13:30:17,585 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 13:30:17,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 13:30:17,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 13:30:17,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 13:30:17,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 13:30:17,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 13:30:17,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 13:30:17,586 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 13:30:17,586 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 13:30:17,586 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 13:30:17,586 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 13:30:17,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 13:30:17,587 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 13:30:17,587 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 13:30:17,587 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 13:30:17,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 13:30:17,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 13:30:17,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 13:30:17,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 13:30:17,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 13:30:17,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 13:30:17,587 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-24 13:30:17,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 13:30:17,588 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 13:30:17,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 13:30:17,790 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 13:30:17,792 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 13:30:17,793 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-24 13:30:17,794 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-24 13:30:17,794 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_multiple_times.bpl [2021-03-24 13:30:17,795 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_multiple_times.bpl' [2021-03-24 13:30:17,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 13:30:17,824 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-24 13:30:17,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 13:30:17,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 13:30:17,825 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 13:30:17,832 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 24.03 01:30:17" (1/1) ... [2021-03-24 13:30:17,838 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 24.03 01:30:17" (1/1) ... [2021-03-24 13:30:17,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 13:30:17,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 13:30:17,844 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 13:30:17,844 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 13:30:17,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:17" (1/1) ... [2021-03-24 13:30:17,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:17" (1/1) ... [2021-03-24 13:30:17,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:17" (1/1) ... [2021-03-24 13:30:17,852 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:17" (1/1) ... [2021-03-24 13:30:17,854 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:17" (1/1) ... [2021-03-24 13:30:17,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:17" (1/1) ... [2021-03-24 13:30:17,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:17" (1/1) ... [2021-03-24 13:30:17,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 13:30:17,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 13:30:17,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 13:30:17,856 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 13:30:17,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:17" (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 [2021-03-24 13:30:17,912 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2021-03-24 13:30:17,912 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-24 13:30:17,913 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-24 13:30:17,913 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 13:30:17,913 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 13:30:17,914 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 13:30:18,013 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 13:30:18,013 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-24 13:30:18,014 INFO L202 PluginConnector]: Adding new model fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:30:18 BoogieIcfgContainer [2021-03-24 13:30:18,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 13:30:18,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 13:30:18,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 13:30:18,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 13:30:18,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.03 01:30:17" (1/2) ... [2021-03-24 13:30:18,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1a1215 and model type fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 01:30:18, skipping insertion in model container [2021-03-24 13:30:18,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 01:30:18" (2/2) ... [2021-03-24 13:30:18,019 INFO L111 eAbstractionObserver]: Analyzing ICFG fork_multiple_times.bpl [2021-03-24 13:30:18,022 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 13:30:18,024 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-24 13:30:18,025 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 13:30:18,041 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:30:18,041 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:30:18,042 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:30:18,042 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:30:18,043 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:30:18,044 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:30:18,046 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:30:18,052 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork1_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:30:18,057 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork2_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 13:30:18,082 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2021-03-24 13:30:18,095 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-24 13:30:18,123 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 13:30:18,123 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 13:30:18,123 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 13:30:18,123 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 13:30:18,123 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 13:30:18,123 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 13:30:18,123 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 13:30:18,123 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 13:30:18,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 22 transitions, 77 flow [2021-03-24 13:30:18,138 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-03-24 13:30:18,139 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:30:18,140 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. [2021-03-24 13:30:18,140 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 22 transitions, 77 flow [2021-03-24 13:30:18,141 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-03-24 13:30:18,142 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-24 13:30:18,148 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 0 places, 0 transitions, 0 flow [2021-03-24 13:30:18,151 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2021-03-24 13:30:18,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-24 13:30:18,152 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-24 13:30:18,152 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:30:18,152 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-03-24 13:30:18,152 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-24 13:30:18,153 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-24 13:30:18,153 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-24 13:30:18,154 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13 [2021-03-24 13:30:18,160 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-24 13:30:18,160 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 13:30:18,163 INFO L202 PluginConnector]: Adding new model fork_multiple_times.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 01:30:18 BasicIcfg [2021-03-24 13:30:18,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 13:30:18,164 INFO L168 Benchmark]: Toolchain (without parser) took 339.80 ms. Allocated memory is still 350.2 MB. Free memory was 330.7 MB in the beginning and 309.5 MB in the end (delta: 21.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.0 GB. [2021-03-24 13:30:18,165 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 350.2 MB. Free memory is still 331.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 13:30:18,165 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.53 ms. Allocated memory is still 350.2 MB. Free memory was 330.6 MB in the beginning and 329.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 13:30:18,167 INFO L168 Benchmark]: Boogie Preprocessor took 11.93 ms. Allocated memory is still 350.2 MB. Free memory was 329.1 MB in the beginning and 328.3 MB in the end (delta: 802.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 13:30:18,167 INFO L168 Benchmark]: RCFGBuilder took 158.10 ms. Allocated memory is still 350.2 MB. Free memory was 328.3 MB in the beginning and 320.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-24 13:30:18,168 INFO L168 Benchmark]: TraceAbstraction took 147.56 ms. Allocated memory is still 350.2 MB. Free memory was 319.8 MB in the beginning and 309.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-03-24 13:30:18,173 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 0.09 ms. Allocated memory is still 350.2 MB. Free memory is still 331.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.53 ms. Allocated memory is still 350.2 MB. Free memory was 330.6 MB in the beginning and 329.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.93 ms. Allocated memory is still 350.2 MB. Free memory was 329.1 MB in the beginning and 328.3 MB in the end (delta: 802.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 158.10 ms. Allocated memory is still 350.2 MB. Free memory was 328.3 MB in the beginning and 320.3 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 147.56 ms. Allocated memory is still 350.2 MB. Free memory was 319.8 MB in the beginning and 309.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.0ms, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - 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: 40.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 35.9ms, 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...