/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-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/channel-sum.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 21:28:26,893 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 21:28:26,894 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 21:28:26,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 21:28:26,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-02-19 21:28:26,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-02-19 21:28:26,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-02-19 21:28:26,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-02-19 21:28:26,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-02-19 21:28:26,965 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-02-19 21:28:26,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-02-19 21:28:26,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-02-19 21:28:26,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 21:28:26,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 21:28:26,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 21:28:26,969 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-Sleep-NoLbe-Delay.epf [2021-02-19 21:28:26,995 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 21:28:26,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 21:28:26,996 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 21:28:26,996 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 21:28:26,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 21:28:26,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 21:28:26,998 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 21:28:26,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 21:28:26,998 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 21:28:26,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 21:28:26,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 21:28:26,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 21:28:26,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 21:28:26,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 21:28:26,999 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 21:28:27,000 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 21:28:27,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 21:28:27,000 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 21:28:27,000 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 21:28:27,000 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 21:28:27,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 21:28:27,000 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 21:28:27,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 21:28:27,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 21:28:27,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 21:28:27,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 21:28:27,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 21:28:27,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 21:28:27,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 21:28:27,001 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 21:28:27,001 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 21:28:27,001 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 21:28:27,001 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 21:28:27,001 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 21:28:27,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 21:28:27,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 21:28:27,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 21:28:27,266 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 21:28:27,267 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 21:28:27,267 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/channel-sum.wvr.bpl [2021-02-19 21:28:27,284 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/channel-sum.wvr.bpl' [2021-02-19 21:28:27,311 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 21:28:27,316 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 21:28:27,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 21:28:27,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 21:28:27,317 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 21:28:27,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:28:27" (1/1) ... [2021-02-19 21:28:27,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:28:27" (1/1) ... [2021-02-19 21:28:27,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 21:28:27,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 21:28:27,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 21:28:27,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 21:28:27,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:28:27" (1/1) ... [2021-02-19 21:28:27,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:28:27" (1/1) ... [2021-02-19 21:28:27,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:28:27" (1/1) ... [2021-02-19 21:28:27,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:28:27" (1/1) ... [2021-02-19 21:28:27,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:28:27" (1/1) ... [2021-02-19 21:28:27,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:28:27" (1/1) ... [2021-02-19 21:28:27,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:28:27" (1/1) ... [2021-02-19 21:28:27,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 21:28:27,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 21:28:27,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 21:28:27,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 21:28:27,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:28:27" (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 [2021-02-19 21:28:27,398 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 21:28:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 21:28:27,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 21:28:27,398 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 21:28:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 21:28:27,398 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 21:28:27,398 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 21:28:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 21:28:27,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 21:28:27,399 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 21:28:27,506 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 21:28:27,506 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-02-19 21:28:27,507 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-02-19 21:28:27,508 INFO L202 PluginConnector]: Adding new model channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:28:27 BoogieIcfgContainer [2021-02-19 21:28:27,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 21:28:27,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 21:28:27,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 21:28:27,511 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 21:28:27,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 09:28:27" (1/2) ... [2021-02-19 21:28:27,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70bf153 and model type channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 09:28:27, skipping insertion in model container [2021-02-19 21:28:27,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 09:28:27" (2/2) ... [2021-02-19 21:28:27,512 INFO L111 eAbstractionObserver]: Analyzing ICFG channel-sum.wvr.bpl [2021-02-19 21:28:27,515 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 21:28:27,515 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 21:28:27,517 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 21:28:27,518 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 21:28:27,535 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-02-19 21:28:27,546 INFO L253 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) [2021-02-19 21:28:27,621 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 21:28:27,621 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 21:28:27,621 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-19 21:28:27,622 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 21:28:27,622 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 21:28:27,622 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 21:28:27,622 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 21:28:27,622 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-19 21:28:27,642 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 21:28:27,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 21:28:27,646 INFO L82 PathProgramCache]: Analyzing trace with hash -286549746, now seen corresponding path program 1 times [2021-02-19 21:28:27,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 21:28:27,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449764114] [2021-02-19 21:28:27,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 21:28:27,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 21:28:27,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 21:28:27,781 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449764114] [2021-02-19 21:28:27,782 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 21:28:27,782 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 21:28:27,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790410179] [2021-02-19 21:28:27,786 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 21:28:27,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 21:28:27,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 21:28:27,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 21:28:27,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:28:27,797 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 21:28:27,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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) [2021-02-19 21:28:27,799 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 21:28:27,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 21:28:27,901 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 21:28:27,904 INFO L202 PluginConnector]: Adding new model channel-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 09:28:27 BasicIcfg [2021-02-19 21:28:27,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-19 21:28:27,906 INFO L168 Benchmark]: Toolchain (without parser) took 593.26 ms. Allocated memory is still 255.9 MB. Free memory was 236.5 MB in the beginning and 211.5 MB in the end (delta: 25.0 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.0 GB. [2021-02-19 21:28:27,906 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 178.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-02-19 21:28:27,907 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.76 ms. Allocated memory is still 255.9 MB. Free memory was 236.0 MB in the beginning and 234.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:28:27,908 INFO L168 Benchmark]: Boogie Preprocessor took 11.60 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.6 MB in the end (delta: 825.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:28:27,908 INFO L168 Benchmark]: RCFGBuilder took 160.46 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 236.0 MB in the end (delta: -2.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.0 GB. [2021-02-19 21:28:27,909 INFO L168 Benchmark]: TraceAbstraction took 395.51 ms. Allocated memory is still 255.9 MB. Free memory was 235.3 MB in the beginning and 211.5 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2021-02-19 21:28:27,914 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 0.10 ms. Allocated memory is still 255.9 MB. Free memory was 237.6 MB in the beginning and 237.5 MB in the end (delta: 178.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 17.76 ms. Allocated memory is still 255.9 MB. Free memory was 236.0 MB in the beginning and 234.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.60 ms. Allocated memory is still 255.9 MB. Free memory was 234.4 MB in the beginning and 233.6 MB in the end (delta: 825.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 160.46 ms. Allocated memory is still 255.9 MB. Free memory was 233.4 MB in the beginning and 236.0 MB in the end (delta: -2.6 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 395.51 ms. Allocated memory is still 255.9 MB. Free memory was 235.3 MB in the beginning and 211.5 MB in the end (delta: 23.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 61]: 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 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 580 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...