/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-RepeatedSemanticLbeWithDisjunctivePredicates.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 [2021-03-26 13:21:51,439 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-26 13:21:51,441 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-26 13:21:51,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-03-26 13:21:51,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-03-26 13:21:51,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-03-26 13:21:51,468 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-03-26 13:21:51,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-03-26 13:21:51,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-03-26 13:21:51,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-03-26 13:21:51,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-03-26 13:21:51,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-03-26 13:21:51,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-26 13:21:51,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-26 13:21:51,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-26 13:21:51,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-26 13:21:51,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-26 13:21:51,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-26 13:21:51,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-26 13:21:51,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-26 13:21:51,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-26 13:21:51,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-26 13:21:51,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-26 13:21:51,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-26 13:21:51,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-03-26 13:21:51,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-03-26 13:21:51,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-03-26 13:21:51,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-03-26 13:21:51,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-03-26 13:21:51,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-03-26 13:21:51,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-03-26 13:21:51,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-03-26 13:21:51,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-03-26 13:21:51,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-03-26 13:21:51,514 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-03-26 13:21:51,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-03-26 13:21:51,515 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-03-26 13:21:51,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-03-26 13:21:51,518 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-26 13:21:51,519 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-26 13:21:51,520 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-26 13:21:51,520 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-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2021-03-26 13:21:51,560 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-26 13:21:51,560 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-26 13:21:51,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-26 13:21:51,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-26 13:21:51,563 INFO L138 SettingsManager]: * Use SBE=true [2021-03-26 13:21:51,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-26 13:21:51,564 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-26 13:21:51,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-26 13:21:51,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-26 13:21:51,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-26 13:21:51,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-26 13:21:51,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-26 13:21:51,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-26 13:21:51,565 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-26 13:21:51,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-26 13:21:51,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-26 13:21:51,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-26 13:21:51,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-26 13:21:51,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-26 13:21:51,566 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-26 13:21:51,566 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-26 13:21:51,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-26 13:21:51,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-26 13:21:51,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-26 13:21:51,567 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-26 13:21:51,567 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-26 13:21:51,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-26 13:21:51,567 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES_DISJUNCTIVE [2021-03-26 13:21:51,567 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-26 13:21:51,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-03-26 13:21:51,568 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-26 13:21:51,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-26 13:21:51,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-26 13:21:51,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-26 13:21:51,906 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-26 13:21:51,907 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-26 13:21:51,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_join_in_loop.bpl [2021-03-26 13:21:51,909 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_join_in_loop.bpl' [2021-03-26 13:21:51,940 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-26 13:21:51,942 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-26 13:21:51,943 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-26 13:21:51,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-26 13:21:51,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-26 13:21:51,958 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 26.03 01:21:51" (1/1) ... [2021-03-26 13:21:51,963 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 26.03 01:21:51" (1/1) ... [2021-03-26 13:21:51,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-26 13:21:51,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-26 13:21:51,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-26 13:21:51,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-26 13:21:51,979 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 26.03 01:21:51" (1/1) ... [2021-03-26 13:21:51,980 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 26.03 01:21:51" (1/1) ... [2021-03-26 13:21:51,981 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 26.03 01:21:51" (1/1) ... [2021-03-26 13:21:51,982 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 26.03 01:21:51" (1/1) ... [2021-03-26 13:21:51,983 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 26.03 01:21:51" (1/1) ... [2021-03-26 13:21:51,986 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 26.03 01:21:51" (1/1) ... [2021-03-26 13:21:51,987 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 26.03 01:21:51" (1/1) ... [2021-03-26 13:21:51,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-26 13:21:51,989 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-26 13:21:51,989 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-26 13:21:51,989 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-26 13:21:51,990 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:51" (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 [2021-03-26 13:21:52,043 INFO L124 BoogieDeclarations]: Specification and implementation of procedure foo given in one single declaration [2021-03-26 13:21:52,045 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2021-03-26 13:21:52,045 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2021-03-26 13:21:52,045 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-26 13:21:52,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-26 13:21:52,046 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-26 13:21:52,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-26 13:21:52,151 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-26 13:21:52,152 INFO L202 PluginConnector]: Adding new model fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.03 01:21:52 BoogieIcfgContainer [2021-03-26 13:21:52,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-26 13:21:52,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-26 13:21:52,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-26 13:21:52,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-26 13:21:52,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.03 01:21:51" (1/2) ... [2021-03-26 13:21:52,168 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5be66e82 and model type fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.03 01:21:52, skipping insertion in model container [2021-03-26 13:21:52,168 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 26.03 01:21:52" (2/2) ... [2021-03-26 13:21:52,169 INFO L111 eAbstractionObserver]: Analyzing ICFG fork_join_in_loop.bpl [2021-03-26 13:21:52,174 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-26 13:21:52,177 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-26 13:21:52,177 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-26 13:21:52,191 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:21:52,192 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:21:52,193 WARN L313 ript$VariableManager]: TermVariabe fooThread1of1ForFork0_y not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-26 13:21:52,199 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-26 13:21:52,215 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-03-26 13:21:52,231 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-26 13:21:52,231 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-26 13:21:52,232 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-26 13:21:52,232 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-26 13:21:52,232 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-26 13:21:52,232 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-26 13:21:52,232 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-26 13:21:52,232 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-26 13:21:52,239 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 17 places, 14 transitions, 39 flow [2021-03-26 13:21:52,251 INFO L129 PetriNetUnfolder]: 1/9 cut-off events. [2021-03-26 13:21:52,251 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-03-26 13:21:52,253 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. [2021-03-26 13:21:52,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 17 places, 14 transitions, 39 flow [2021-03-26 13:21:52,255 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-03-26 13:21:52,256 INFO L170 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-03-26 13:21:52,275 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 0 places, 0 transitions, 0 flow [2021-03-26 13:21:52,280 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2021-03-26 13:21:52,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-03-26 13:21:52,282 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 13:21:52,283 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:52,283 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. [2021-03-26 13:21:52,284 INFO L142 LiptonReduction]: Number of co-enabled transitions 0 [2021-03-26 13:21:52,285 INFO L154 LiptonReduction]: Checked pairs total: 0 [2021-03-26 13:21:52,285 INFO L156 LiptonReduction]: Total number of compositions: 0 [2021-03-26 13:21:52,286 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 31 [2021-03-26 13:21:52,294 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-03-26 13:21:52,294 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-26 13:21:52,298 INFO L202 PluginConnector]: Adding new model fork_join_in_loop.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.03 01:21:52 BasicIcfg [2021-03-26 13:21:52,298 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-26 13:21:52,301 INFO L168 Benchmark]: Toolchain (without parser) took 357.41 ms. Allocated memory is still 255.9 MB. Free memory was 236.9 MB in the beginning and 232.7 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.0 GB. [2021-03-26 13:21:52,301 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.46 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:21:52,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.73 ms. Allocated memory is still 255.9 MB. Free memory was 236.9 MB in the beginning and 235.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-26 13:21:52,304 INFO L168 Benchmark]: Boogie Preprocessor took 15.81 ms. Allocated memory is still 255.9 MB. Free memory was 235.3 MB in the beginning and 234.5 MB in the end (delta: 798.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:21:52,305 INFO L168 Benchmark]: RCFGBuilder took 163.65 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 225.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-26 13:21:52,306 INFO L168 Benchmark]: TraceAbstraction took 145.00 ms. Allocated memory is still 255.9 MB. Free memory was 225.5 MB in the beginning and 232.7 MB in the end (delta: -7.2 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-26 13:21:52,313 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 0.46 ms. Allocated memory is still 255.9 MB. Free memory is still 238.0 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 27.73 ms. Allocated memory is still 255.9 MB. Free memory was 236.9 MB in the beginning and 235.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.81 ms. Allocated memory is still 255.9 MB. Free memory was 235.3 MB in the beginning and 234.5 MB in the end (delta: 798.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 163.65 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 225.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 145.00 ms. Allocated memory is still 255.9 MB. Free memory was 225.5 MB in the beginning and 232.7 MB in the end (delta: -7.2 MB). There was no memory consumed. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.5ms, 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: 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: SemanticConditionEliminator.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] , SemanticConditionEliminator.Statistics on underlying relation: 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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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, Eliminated conditions: 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: 0.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 66.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 61.1ms, 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...