/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-RepeatedVariableLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/fork_join_in_loop.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-25 07:54:37,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-25 07:54:37,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-25 07:54:37,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-25 07:54:37,940 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-25 07:54:37,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-25 07:54:37,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-25 07:54:37,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-25 07:54:37,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-25 07:54:37,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-25 07:54:37,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-25 07:54:37,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-25 07:54:37,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-25 07:54:37,962 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-25 07:54:37,963 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-25 07:54:37,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-25 07:54:37,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-25 07:54:37,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-25 07:54:37,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-25 07:54:37,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-25 07:54:37,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-25 07:54:37,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-25 07:54:37,981 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-25 07:54:37,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-25 07:54:37,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-25 07:54:37,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-25 07:54:37,989 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-25 07:54:37,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-25 07:54:37,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-25 07:54:37,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-25 07:54:37,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-25 07:54:37,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-25 07:54:37,997 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-25 07:54:37,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-25 07:54:37,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-25 07:54:37,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-25 07:54:37,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-25 07:54:37,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-25 07:54:37,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-25 07:54:38,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-25 07:54:38,000 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-25 07:54:38,001 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-RepeatedVariableLbe.epf [2021-03-25 07:54:38,023 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-25 07:54:38,023 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-25 07:54:38,024 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-25 07:54:38,024 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-25 07:54:38,025 INFO L138 SettingsManager]: * Use SBE=true [2021-03-25 07:54:38,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-25 07:54:38,025 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-25 07:54:38,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-25 07:54:38,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-25 07:54:38,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-25 07:54:38,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-25 07:54:38,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-25 07:54:38,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-25 07:54:38,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-25 07:54:38,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-25 07:54:38,026 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-25 07:54:38,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-25 07:54:38,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-25 07:54:38,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-25 07:54:38,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-25 07:54:38,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-25 07:54:38,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-25 07:54:38,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-25 07:54:38,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-25 07:54:38,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-25 07:54:38,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-25 07:54:38,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-25 07:54:38,028 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2021-03-25 07:54:38,028 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-25 07:54:38,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-25 07:54:38,028 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-25 07:54:38,284 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-25 07:54:38,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-25 07:54:38,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-25 07:54:38,305 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-25 07:54:38,305 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-25 07:54:38,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_join_in_loop.bpl [2021-03-25 07:54:38,306 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_join_in_loop.bpl' [2021-03-25 07:54:38,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-25 07:54:38,338 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-25 07:54:38,339 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-25 07:54:38,339 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-25 07:54:38,339 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-25 07:54:38,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:38" (1/1) ... [2021-03-25 07:54:38,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:38" (1/1) ... [2021-03-25 07:54:38,365 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-25 07:54:38,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-25 07:54:38,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-25 07:54:38,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-25 07:54:38,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:38" (1/1) ... [2021-03-25 07:54:38,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:38" (1/1) ... [2021-03-25 07:54:38,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:38" (1/1) ... [2021-03-25 07:54:38,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:38" (1/1) ... [2021-03-25 07:54:38,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:38" (1/1) ... [2021-03-25 07:54:38,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:38" (1/1) ... [2021-03-25 07:54:38,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:38" (1/1) ... [2021-03-25 07:54:38,384 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-25 07:54:38,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-25 07:54:38,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-25 07:54:38,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-25 07:54:38,386 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:38" (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 [2021-03-25 07:54:38,452 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2021-03-25 07:54:38,453 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-25 07:54:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-25 07:54:38,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-25 07:54:38,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-25 07:54:38,456 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-25 07:54:38,565 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-25 07:54:38,565 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-25 07:54:38,567 INFO L202 PluginConnector]: Adding new model fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:54:38 BoogieIcfgContainer [2021-03-25 07:54:38,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-25 07:54:38,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-25 07:54:38,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-25 07:54:38,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-25 07:54:38,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.03 07:54:38" (1/2) ... [2021-03-25 07:54:38,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5185e1a4 and model type fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.03 07:54:38, skipping insertion in model container [2021-03-25 07:54:38,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.03 07:54:38" (2/2) ... [2021-03-25 07:54:38,589 INFO L111 eAbstractionObserver]: Analyzing ICFG fork_join_in_loop.bpl [2021-03-25 07:54:38,599 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-25 07:54:38,602 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-25 07:54:38,603 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-25 07:54:38,628 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:54:38,629 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:54:38,631 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-25 07:54:38,643 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-25 07:54:38,658 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-25 07:54:38,690 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-25 07:54:38,691 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-25 07:54:38,691 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-25 07:54:38,691 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-25 07:54:38,691 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-25 07:54:38,692 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-25 07:54:38,692 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-25 07:54:38,692 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-25 07:54:38,701 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 14 transitions, 39 flow [2021-03-25 07:54:38,716 INFO L129 PetriNetUnfolder]: 1/9 cut-off events. [2021-03-25 07:54:38,717 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-25 07:54:38,718 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14 conditions, 9 events. 1/9 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 4 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 1. Up to 2 conditions per place. [2021-03-25 07:54:38,719 INFO L82 GeneralOperation]: Start removeDead. Operand has 17 places, 14 transitions, 39 flow [2021-03-25 07:54:38,721 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-03-25 07:54:38,722 INFO L174 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2021-03-25 07:54:38,732 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 0 places, 0 transitions, 0 flow [2021-03-25 07:54:38,736 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2021-03-25 07:54:38,737 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-25 07:54:38,737 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 07:54:38,737 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:54:38,737 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. [2021-03-25 07:54:38,738 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-25 07:54:38,739 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-25 07:54:38,739 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-25 07:54:38,740 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 19 [2021-03-25 07:54:38,746 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-25 07:54:38,746 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-25 07:54:38,749 INFO L202 PluginConnector]: Adding new model fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.03 07:54:38 BasicIcfg [2021-03-25 07:54:38,749 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-25 07:54:38,752 INFO L168 Benchmark]: Toolchain (without parser) took 412.06 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 231.9 MB in the end (delta: 4.7 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.0 GB. [2021-03-25 07:54:38,752 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 07:54:38,753 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.50 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-25 07:54:38,754 INFO L168 Benchmark]: Boogie Preprocessor took 16.15 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.1 MB in the end (delta: 942.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-25 07:54:38,755 INFO L168 Benchmark]: RCFGBuilder took 181.96 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 225.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-25 07:54:38,756 INFO L168 Benchmark]: TraceAbstraction took 165.89 ms. Allocated memory is still 255.9 MB. Free memory was 240.9 MB in the beginning and 231.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-25 07:54:38,762 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 0.14 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.50 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 235.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 16.15 ms. Allocated memory is still 255.9 MB. Free memory was 235.1 MB in the beginning and 234.1 MB in the end (delta: 942.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 181.96 ms. Allocated memory is still 255.9 MB. Free memory was 234.1 MB in the beginning and 225.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 165.89 ms. Allocated memory is still 255.9 MB. Free memory was 240.9 MB in the beginning and 231.9 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.8ms, 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: 31]: 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: 62.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 54.1ms, 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...