/usr/bin/java -Xmx8000000000 -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/ThreadIdTest-Unsafe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 08:21:38,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 08:21:38,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 08:21:38,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-13 08:21:38,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-13 08:21:38,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-13 08:21:38,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-13 08:21:38,054 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-13 08:21:38,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-13 08:21:38,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-13 08:21:38,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-13 08:21:38,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-13 08:21:38,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 08:21:38,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 08:21:38,063 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 08:21:38,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 08:21:38,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 08:21:38,067 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 08:21:38,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 08:21:38,083 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 08:21:38,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 08:21:38,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 08:21:38,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 08:21:38,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 08:21:38,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-13 08:21:38,099 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 [2021-06-13 08:21:38,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 08:21:38,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 08:21:38,128 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 08:21:38,128 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 08:21:38,128 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 08:21:38,128 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 08:21:38,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 08:21:38,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 08:21:38,129 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 08:21:38,129 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 08:21:38,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 08:21:38,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 08:21:38,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 08:21:38,129 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 08:21:38,130 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 08:21:38,130 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 08:21:38,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 08:21:38,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 08:21:38,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 08:21:38,130 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 08:21:38,130 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 08:21:38,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 08:21:38,130 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 08:21:38,130 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 08:21:38,131 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 08:21:38,131 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 08:21:38,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 08:21:38,131 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 08:21:38,131 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-06-13 08:21:38,131 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 08:21:38,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 08:21:38,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 08:21:38,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 08:21:38,329 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 08:21:38,330 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 08:21:38,331 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Unsafe.bpl [2021-06-13 08:21:38,331 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Unsafe.bpl' [2021-06-13 08:21:38,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 08:21:38,354 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 08:21:38,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 08:21:38,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 08:21:38,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 08:21:38,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 08:21:38" (1/1) ... [2021-06-13 08:21:38,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 08:21:38" (1/1) ... [2021-06-13 08:21:38,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 08:21:38,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 08:21:38,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 08:21:38,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 08:21:38,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 08:21:38" (1/1) ... [2021-06-13 08:21:38,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 08:21:38" (1/1) ... [2021-06-13 08:21:38,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 08:21:38" (1/1) ... [2021-06-13 08:21:38,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 08:21:38" (1/1) ... [2021-06-13 08:21:38,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 08:21:38" (1/1) ... [2021-06-13 08:21:38,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 08:21:38" (1/1) ... [2021-06-13 08:21:38,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 08:21:38" (1/1) ... [2021-06-13 08:21:38,378 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 08:21:38,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 08:21:38,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 08:21:38,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 08:21:38,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 08:21:38" (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 [2021-06-13 08:21:38,423 INFO L130 BoogieDeclarations]: Found specification of procedure decrement [2021-06-13 08:21:38,423 INFO L138 BoogieDeclarations]: Found implementation of procedure decrement [2021-06-13 08:21:38,424 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2021-06-13 08:21:38,424 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2021-06-13 08:21:38,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 08:21:38,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 08:21:38,425 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 08:21:38,511 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 08:21:38,511 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 08:21:38,512 INFO L202 PluginConnector]: Adding new model ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 08:21:38 BoogieIcfgContainer [2021-06-13 08:21:38,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 08:21:38,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 08:21:38,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 08:21:38,515 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 08:21:38,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 08:21:38" (1/2) ... [2021-06-13 08:21:38,516 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9a1b8d and model type ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 08:21:38, skipping insertion in model container [2021-06-13 08:21:38,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 08:21:38" (2/2) ... [2021-06-13 08:21:38,517 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest-Unsafe.bpl [2021-06-13 08:21:38,520 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 08:21:38,521 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 08:21:38,521 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 08:21:38,542 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:21:38,542 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:21:38,543 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:21:38,543 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:21:38,547 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:21:38,547 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:21:38,547 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:21:38,548 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:21:38,550 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:21:38,555 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-13 08:21:38,562 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-13 08:21:38,577 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-13 08:21:38,590 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 08:21:38,590 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 08:21:38,590 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 08:21:38,591 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 08:21:38,591 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 08:21:38,591 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 08:21:38,591 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 08:21:38,591 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 08:21:38,596 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 20 places, 14 transitions, 44 flow [2021-06-13 08:21:38,609 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-06-13 08:21:38,609 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-13 08:21:38,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24 conditions, 15 events. 0/15 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 17 event pairs, 0 based on Foata normal form. 0/13 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-06-13 08:21:38,610 INFO L82 GeneralOperation]: Start removeDead. Operand has 20 places, 14 transitions, 44 flow [2021-06-13 08:21:38,613 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 16 places, 10 transitions, 32 flow [2021-06-13 08:21:38,616 INFO L129 PetriNetUnfolder]: 0/9 cut-off events. [2021-06-13 08:21:38,616 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-06-13 08:21:38,616 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-06-13 08:21:38,617 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-06-13 08:21:38,617 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 08:21:38,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 08:21:38,620 INFO L82 PathProgramCache]: Analyzing trace with hash 1338455046, now seen corresponding path program 1 times [2021-06-13 08:21:38,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 08:21:38,626 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43609437] [2021-06-13 08:21:38,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 08:21:38,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 08:21:38,672 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 08:21:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-13 08:21:38,677 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-13 08:21:38,687 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-13 08:21:38,687 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-13 08:21:38,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 08:21:38,690 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 08:21:38,696 INFO L202 PluginConnector]: Adding new model ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 08:21:38 BasicIcfg [2021-06-13 08:21:38,696 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 08:21:38,698 INFO L168 Benchmark]: Toolchain (without parser) took 343.37 ms. Allocated memory is still 217.1 MB. Free memory was 196.5 MB in the beginning and 170.2 MB in the end (delta: 26.3 MB). Peak memory consumption was 26.2 MB. Max. memory is 8.0 GB. [2021-06-13 08:21:38,698 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.08 ms. Allocated memory is still 217.1 MB. Free memory is still 197.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 08:21:38,699 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.90 ms. Allocated memory is still 217.1 MB. Free memory was 196.5 MB in the beginning and 195.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-13 08:21:38,699 INFO L168 Benchmark]: Boogie Preprocessor took 7.73 ms. Allocated memory is still 217.1 MB. Free memory was 195.0 MB in the beginning and 194.1 MB in the end (delta: 861.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 08:21:38,700 INFO L168 Benchmark]: RCFGBuilder took 133.82 ms. Allocated memory is still 217.1 MB. Free memory was 194.1 MB in the beginning and 185.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-06-13 08:21:38,700 INFO L168 Benchmark]: TraceAbstraction took 182.66 ms. Allocated memory is still 217.1 MB. Free memory was 185.2 MB in the beginning and 170.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-06-13 08:21:38,703 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 0.08 ms. Allocated memory is still 217.1 MB. Free memory is still 197.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 15.90 ms. Allocated memory is still 217.1 MB. Free memory was 196.5 MB in the beginning and 195.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 7.73 ms. Allocated memory is still 217.1 MB. Free memory was 195.0 MB in the beginning and 194.1 MB in the end (delta: 861.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 133.82 ms. Allocated memory is still 217.1 MB. Free memory was 194.1 MB in the beginning and 185.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 182.66 ms. Allocated memory is still 217.1 MB. Free memory was 185.2 MB in the beginning and 170.2 MB in the end (delta: 15.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 22]: assertion can be violated assertion can be violated We found a FailurePath: [L17] 0 x := 0; VAL [x=0] [L19] FORK 0 fork 1 increment(x); VAL [n=0, x=0] [L20] FORK 0 fork 2 decrement(x); VAL [n=0, n=0, x=0] [L37] 2 res := n - 1; VAL [n=0, n=0, res=-1, x=0] [L21] JOIN 2 join 2 assign y; VAL [n=0, n=0, res=-1, x=0, y=-1] [L22] 0 assert y == 1; VAL [n=0, n=0, res=-1, x=0, y=-1] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 22 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 3.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 100.1ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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: TRACE_CHECK: 2.4ms SsaConstructionTime, 12.1ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...