/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-POR-NewStatesSleepPersistentFixedOrder-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 [2021-06-14 15:24:46,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 15:24:46,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 15:24:46,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 15:24:46,327 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-06-14 15:24:46,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 15:24:46,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 15:24:46,362 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 15:24:46,363 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 15:24:46,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 15:24:46,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 15:24:46,365 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 15:24:46,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 15:24:46,366 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 15:24:46,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 15:24:46,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 15:24:46,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 15:24:46,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 15:24:46,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 15:24:46,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 15:24:46,367 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 15:24:46,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 15:24:46,368 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 15:24:46,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 15:24:46,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 15:24:46,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 15:24:46,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 15:24:46,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 15:24:46,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 15:24:46,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 15:24:46,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 15:24:46,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 15:24:46,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 15:24:46,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 15:24:46,369 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 15:24:46,369 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 15:24:46,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 15:24:46,370 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-14 15:24:46,370 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 15:24:46,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 15:24:46,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 15:24:46,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 15:24:46,685 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 15:24:46,686 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 15:24:46,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Unsafe.bpl [2021-06-14 15:24:46,687 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/ThreadIdTest-Unsafe.bpl' [2021-06-14 15:24:46,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 15:24:46,715 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 15:24:46,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 15:24:46,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 15:24:46,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 15:24:46,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:24:46" (1/1) ... [2021-06-14 15:24:46,746 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:24:46" (1/1) ... [2021-06-14 15:24:46,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 15:24:46,754 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 15:24:46,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 15:24:46,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 15:24:46,761 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:24:46" (1/1) ... [2021-06-14 15:24:46,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:24:46" (1/1) ... [2021-06-14 15:24:46,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:24:46" (1/1) ... [2021-06-14 15:24:46,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:24:46" (1/1) ... [2021-06-14 15:24:46,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:24:46" (1/1) ... [2021-06-14 15:24:46,763 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:24:46" (1/1) ... [2021-06-14 15:24:46,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:24:46" (1/1) ... [2021-06-14 15:24:46,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 15:24:46,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 15:24:46,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 15:24:46,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 15:24:46,769 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:24:46" (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 [2021-06-14 15:24:46,839 INFO L130 BoogieDeclarations]: Found specification of procedure decrement [2021-06-14 15:24:46,840 INFO L138 BoogieDeclarations]: Found implementation of procedure decrement [2021-06-14 15:24:46,840 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2021-06-14 15:24:46,840 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2021-06-14 15:24:46,840 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 15:24:46,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 15:24:46,841 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 15:24:46,946 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 15:24:46,947 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 15:24:46,948 INFO L202 PluginConnector]: Adding new model ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:24:46 BoogieIcfgContainer [2021-06-14 15:24:46,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 15:24:46,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 15:24:46,950 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 15:24:46,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 15:24:46,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 03:24:46" (1/2) ... [2021-06-14 15:24:46,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44ff28b5 and model type ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 03:24:46, skipping insertion in model container [2021-06-14 15:24:46,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 03:24:46" (2/2) ... [2021-06-14 15:24:46,954 INFO L111 eAbstractionObserver]: Analyzing ICFG ThreadIdTest-Unsafe.bpl [2021-06-14 15:24:46,959 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 15:24:46,959 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 15:24:46,959 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 15:24:46,960 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 15:24:46,977 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:24:46,977 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:24:46,977 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:24:46,977 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:24:46,978 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:24:46,978 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:24:46,978 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:24:46,979 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:24:46,980 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:24:46,984 WARN L313 ript$VariableManager]: TermVariabe decrementThread1of1ForFork1_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-14 15:24:46,990 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-14 15:24:47,008 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-14 15:24:47,066 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 15:24:47,066 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 15:24:47,066 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 15:24:47,066 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 15:24:47,066 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 15:24:47,066 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 15:24:47,066 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 15:24:47,067 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 15:24:47,159 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 15:24:47,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 15:24:47,163 INFO L82 PathProgramCache]: Analyzing trace with hash 2008724517, now seen corresponding path program 1 times [2021-06-14 15:24:47,170 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 15:24:47,171 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53062749] [2021-06-14 15:24:47,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 15:24:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-14 15:24:47,255 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-14 15:24:47,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-14 15:24:47,276 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-14 15:24:47,292 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-14 15:24:47,293 INFO L573 BasicCegarLoop]: Counterexample might be feasible [2021-06-14 15:24:47,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 15:24:47,306 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-14 15:24:47,316 INFO L202 PluginConnector]: Adding new model ThreadIdTest-Unsafe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.06 03:24:47 BasicIcfg [2021-06-14 15:24:47,316 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-14 15:24:47,318 INFO L168 Benchmark]: Toolchain (without parser) took 601.84 ms. Allocated memory is still 176.2 MB. Free memory was 156.0 MB in the beginning and 126.1 MB in the end (delta: 29.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 8.0 GB. [2021-06-14 15:24:47,318 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 176.2 MB. Free memory is still 156.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-14 15:24:47,319 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.34 ms. Allocated memory is still 176.2 MB. Free memory was 155.8 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 15:24:47,321 INFO L168 Benchmark]: Boogie Preprocessor took 10.22 ms. Allocated memory is still 176.2 MB. Free memory was 154.4 MB in the beginning and 153.5 MB in the end (delta: 894.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-14 15:24:47,321 INFO L168 Benchmark]: RCFGBuilder took 183.27 ms. Allocated memory is still 176.2 MB. Free memory was 153.5 MB in the beginning and 145.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-06-14 15:24:47,326 INFO L168 Benchmark]: TraceAbstraction took 366.96 ms. Allocated memory is still 176.2 MB. Free memory was 144.7 MB in the beginning and 126.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-06-14 15:24:47,329 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 176.2 MB. Free memory is still 156.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 32.34 ms. Allocated memory is still 176.2 MB. Free memory was 155.8 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.22 ms. Allocated memory is still 176.2 MB. Free memory was 154.4 MB in the beginning and 153.5 MB in the end (delta: 894.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 183.27 ms. Allocated memory is still 176.2 MB. Free memory was 153.5 MB in the beginning and 145.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 366.96 ms. Allocated memory is still 176.2 MB. Free memory was 144.7 MB in the beginning and 126.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 48, positive: 44, positive conditional: 4, positive unconditional: 40, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 48, positive: 44, positive conditional: 4, positive unconditional: 40, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 42, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 42, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 42, unknown conditional: 0, unknown unconditional: 42] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 ], Maximal queried relation: 0, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 65, Number of persistent set computation: 23, Number of trivial persistent sets: 23, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 48, positive: 44, positive conditional: 4, positive unconditional: 40, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 48, positive: 44, positive conditional: 4, positive unconditional: 40, negative: 4, negative conditional: 1, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 42, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 42, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 42, unknown conditional: 0, unknown unconditional: 42] , Statistics on independence cache: Total cache size (in pairs): 42, Positive cache size: 38, Positive conditional cache size: 0, Positive unconditional cache size: 38, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 ], Maximal queried relation: 0, Independence queries for same thread: 0 - 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] [L29] 1 res := n + 1; VAL [n=0, res=1, x=0] [L20] FORK 0 fork 2 decrement(x); VAL [n=0, n=0, res=1, x=0] [L37] 2 res := n - 1; VAL [n=0, n=0, res=1, res=-1, x=0] [L21] JOIN 2 join 2 assign y; VAL [n=0, n=0, res=-1, res=1, x=0, y=-1] [L22] 0 assert y == 1; VAL [n=0, n=0, res=1, 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. VerificationResult: UNSAFE, OverallTime: 281.7ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.8ms, PartialOrderReductionTime: 82.8ms, 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: TRACE_CHECK: 7.9ms SsaConstructionTime, 22.6ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 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...