/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-POR-DelaySleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/file-item-trans.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-03 21:40:35,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 21:40:35,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 21:40:35,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-03 21:40:35,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-03 21:40:35,160 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-03 21:40:35,161 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-03 21:40:35,162 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-03 21:40:35,163 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-03 21:40:35,163 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-03 21:40:35,164 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-03 21:40:35,164 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-03 21:40:35,164 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-03 21:40:35,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-03 21:40:35,165 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-03 21:40:35,166 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-DelaySleepPersistent-NoLbe.epf [2021-05-03 21:40:35,186 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 21:40:35,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 21:40:35,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-03 21:40:35,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-03 21:40:35,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-03 21:40:35,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-03 21:40:35,188 INFO L138 SettingsManager]: * Use SBE=true [2021-05-03 21:40:35,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 21:40:35,189 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 21:40:35,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 21:40:35,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 21:40:35,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 21:40:35,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 21:40:35,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 21:40:35,190 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 21:40:35,190 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 21:40:35,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 21:40:35,190 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 21:40:35,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 21:40:35,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 21:40:35,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 21:40:35,191 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 21:40:35,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 21:40:35,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 21:40:35,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 21:40:35,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-03 21:40:35,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-03 21:40:35,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-03 21:40:35,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-03 21:40:35,193 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-03 21:40:35,193 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-03 21:40:35,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 21:40:35,193 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET [2021-05-03 21:40:35,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-03 21:40:35,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 21:40:35,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 21:40:35,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 21:40:35,514 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-03 21:40:35,538 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-03 21:40:35,539 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/file-item-trans.wvr.bpl [2021-05-03 21:40:35,540 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/file-item-trans.wvr.bpl' [2021-05-03 21:40:35,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 21:40:35,584 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 21:40:35,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-03 21:40:35,592 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-03 21:40:35,592 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-03 21:40:35,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:35" (1/1) ... [2021-05-03 21:40:35,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:35" (1/1) ... [2021-05-03 21:40:35,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-03 21:40:35,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 21:40:35,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 21:40:35,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 21:40:35,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:35" (1/1) ... [2021-05-03 21:40:35,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:35" (1/1) ... [2021-05-03 21:40:35,637 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:35" (1/1) ... [2021-05-03 21:40:35,637 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:35" (1/1) ... [2021-05-03 21:40:35,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:35" (1/1) ... [2021-05-03 21:40:35,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:35" (1/1) ... [2021-05-03 21:40:35,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:35" (1/1) ... [2021-05-03 21:40:35,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 21:40:35,642 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 21:40:35,642 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 21:40:35,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 21:40:35,643 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:35" (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 [2021-05-03 21:40:35,743 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-03 21:40:35,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-03 21:40:35,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-03 21:40:35,744 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-03 21:40:35,751 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-03 21:40:35,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-03 21:40:35,752 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-03 21:40:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 21:40:35,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 21:40:35,752 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-05-03 21:40:35,752 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-05-03 21:40:35,753 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-05-03 21:40:35,754 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-03 21:40:35,908 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 21:40:35,909 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-05-03 21:40:35,910 INFO L202 PluginConnector]: Adding new model file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 09:40:35 BoogieIcfgContainer [2021-05-03 21:40:35,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 21:40:35,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 21:40:35,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 21:40:35,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 21:40:35,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:40:35" (1/2) ... [2021-05-03 21:40:35,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53b90896 and model type file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 09:40:35, skipping insertion in model container [2021-05-03 21:40:35,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 09:40:35" (2/2) ... [2021-05-03 21:40:35,922 INFO L111 eAbstractionObserver]: Analyzing ICFG file-item-trans.wvr.bpl [2021-05-03 21:40:35,931 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-03 21:40:35,931 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-03 21:40:35,935 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 21:40:35,935 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-03 21:40:35,974 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-05-03 21:40:35,990 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 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 [2021-05-03 21:40:36,079 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 21:40:36,080 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 21:40:36,080 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-03 21:40:36,080 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 21:40:36,080 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 21:40:36,080 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 21:40:36,080 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 21:40:36,080 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 21:40:36,233 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:40:36,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:40:36,237 INFO L82 PathProgramCache]: Analyzing trace with hash -102452666, now seen corresponding path program 1 times [2021-05-03 21:40:36,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:40:36,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506614320] [2021-05-03 21:40:36,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:40:36,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:40:36,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:40:36,740 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506614320] [2021-05-03 21:40:36,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 21:40:36,741 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-03 21:40:36,741 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333238836] [2021-05-03 21:40:36,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-03 21:40:36,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:40:36,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-03 21:40:36,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-03 21:40:36,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:36,772 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:40:36,777 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 21:40:36,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:40:37,097 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-05-03 21:40:37,401 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-05-03 21:40:37,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:40:37,405 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 21:40:37,413 INFO L202 PluginConnector]: Adding new model file-item-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 09:40:37 BasicIcfg [2021-05-03 21:40:37,413 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-03 21:40:37,414 INFO L168 Benchmark]: Toolchain (without parser) took 1830.39 ms. Allocated memory is still 356.5 MB. Free memory was 336.4 MB in the beginning and 208.4 MB in the end (delta: 128.0 MB). Peak memory consumption was 130.8 MB. Max. memory is 16.0 GB. [2021-05-03 21:40:37,415 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 356.5 MB. Free memory was 337.5 MB in the beginning and 337.5 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-03 21:40:37,415 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.06 ms. Allocated memory is still 356.5 MB. Free memory was 336.3 MB in the beginning and 334.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-03 21:40:37,416 INFO L168 Benchmark]: Boogie Preprocessor took 11.42 ms. Allocated memory is still 356.5 MB. Free memory was 334.9 MB in the beginning and 333.9 MB in the end (delta: 921.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-03 21:40:37,416 INFO L168 Benchmark]: RCFGBuilder took 268.31 ms. Allocated memory is still 356.5 MB. Free memory was 333.9 MB in the beginning and 323.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-05-03 21:40:37,417 INFO L168 Benchmark]: TraceAbstraction took 1502.01 ms. Allocated memory is still 356.5 MB. Free memory was 323.1 MB in the beginning and 208.4 MB in the end (delta: 114.7 MB). Peak memory consumption was 116.1 MB. Max. memory is 16.0 GB. [2021-05-03 21:40:37,419 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 0.18 ms. Allocated memory is still 356.5 MB. Free memory was 337.5 MB in the beginning and 337.5 MB in the end (delta: 71.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 33.06 ms. Allocated memory is still 356.5 MB. Free memory was 336.3 MB in the beginning and 334.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.42 ms. Allocated memory is still 356.5 MB. Free memory was 334.9 MB in the beginning and 333.9 MB in the end (delta: 921.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 268.31 ms. Allocated memory is still 356.5 MB. Free memory was 333.9 MB in the beginning and 323.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1502.01 ms. Allocated memory is still 356.5 MB. Free memory was 323.1 MB in the beginning and 208.4 MB in the end (delta: 114.7 MB). Peak memory consumption was 116.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 12, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 174, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 150, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 150, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 94, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 174, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 150, unknown conditional: 0, unknown unconditional: 150] , Statistics on independence cache: Total cache size (in pairs): 150, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, 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: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 94, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 12, negative conditional: 0, negative unconditional: 12, 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): 150, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Eliminated conditions: 0 ], Maximal queried relation: 0, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 113, Number of persistent set computation: 43, Number of trivial persistent sets: 37, Underlying independence relation: CachedIndependenceRelation.Independence Queries: [ total: 174, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 150, positive: 148, positive conditional: 0, positive unconditional: 148, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 150, positive: 143, positive conditional: 0, positive unconditional: 143, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 7, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 94, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 174, positive: 24, positive conditional: 0, positive unconditional: 24, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 150, unknown conditional: 0, unknown unconditional: 150] , Statistics on independence cache: Total cache size (in pairs): 150, Positive cache size: 148, Positive conditional cache size: 0, Positive unconditional cache size: 148, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 - PositiveResult [Line: 50]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1406.2ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 25.0ms, PartialOrderReductionTime: 753.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5, 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: 12.6ms SsaConstructionTime, 38.2ms SatisfiabilityAnalysisTime, 397.2ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 correct! Received shutdown request...