/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-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-04 00:09:10,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-04 00:09:10,661 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-04 00:09:10,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-04 00:09:10,785 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-04 00:09:10,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-04 00:09:10,821 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-04 00:09:10,822 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-04 00:09:10,823 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-04 00:09:10,823 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-04 00:09:10,823 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-04 00:09:10,823 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-04 00:09:10,824 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-04 00:09:10,824 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-04 00:09:10,824 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-04 00:09:10,829 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-Persistent-NoLbe.epf [2021-05-04 00:09:10,877 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-04 00:09:10,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-04 00:09:10,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-04 00:09:10,878 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-04 00:09:10,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-04 00:09:10,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-04 00:09:10,880 INFO L138 SettingsManager]: * Use SBE=true [2021-05-04 00:09:10,880 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-04 00:09:10,880 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-04 00:09:10,880 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-04 00:09:10,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-04 00:09:10,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-04 00:09:10,881 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-04 00:09:10,881 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-04 00:09:10,881 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-04 00:09:10,881 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-04 00:09:10,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-04 00:09:10,882 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-04 00:09:10,882 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-04 00:09:10,882 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-04 00:09:10,882 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-04 00:09:10,882 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-04 00:09:10,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-04 00:09:10,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-04 00:09:10,883 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-04 00:09:10,883 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-04 00:09:10,883 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-04 00:09:10,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-04 00:09:10,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-04 00:09:10,883 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-04 00:09:10,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-04 00:09:10,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-04 00:09:10,884 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-05-04 00:09:10,884 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-04 00:09:11,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-04 00:09:11,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-04 00:09:11,259 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-04 00:09:11,260 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-04 00:09:11,262 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-04 00:09:11,263 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl [2021-05-04 00:09:11,264 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/spaghetti.wvr.bpl' [2021-05-04 00:09:11,303 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-04 00:09:11,306 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-04 00:09:11,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-04 00:09:11,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-04 00:09:11,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-04 00:09:11,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:09:11" (1/1) ... [2021-05-04 00:09:11,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:09:11" (1/1) ... [2021-05-04 00:09:11,344 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-04 00:09:11,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-04 00:09:11,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-04 00:09:11,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-04 00:09:11,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:09:11" (1/1) ... [2021-05-04 00:09:11,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:09:11" (1/1) ... [2021-05-04 00:09:11,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:09:11" (1/1) ... [2021-05-04 00:09:11,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:09:11" (1/1) ... [2021-05-04 00:09:11,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:09:11" (1/1) ... [2021-05-04 00:09:11,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:09:11" (1/1) ... [2021-05-04 00:09:11,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:09:11" (1/1) ... [2021-05-04 00:09:11,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-04 00:09:11,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-04 00:09:11,368 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-04 00:09:11,368 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-04 00:09:11,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:09:11" (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 [2021-05-04 00:09:11,442 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-04 00:09:11,442 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-04 00:09:11,442 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-04 00:09:11,443 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-04 00:09:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-04 00:09:11,443 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-04 00:09:11,443 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-04 00:09:11,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-04 00:09:11,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-04 00:09:11,443 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-05-04 00:09:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-05-04 00:09:11,444 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-05-04 00:09:11,444 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-05-04 00:09:11,444 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-05-04 00:09:11,444 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-05-04 00:09:11,446 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-04 00:09:11,696 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-04 00:09:11,697 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-05-04 00:09:11,699 INFO L202 PluginConnector]: Adding new model spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 12:09:11 BoogieIcfgContainer [2021-05-04 00:09:11,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-04 00:09:11,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-04 00:09:11,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-04 00:09:11,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-04 00:09:11,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.05 12:09:11" (1/2) ... [2021-05-04 00:09:11,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f2d0808 and model type spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.05 12:09:11, skipping insertion in model container [2021-05-04 00:09:11,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.05 12:09:11" (2/2) ... [2021-05-04 00:09:11,729 INFO L111 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.bpl [2021-05-04 00:09:11,735 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-04 00:09:11,735 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-04 00:09:11,740 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-04 00:09:11,742 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-04 00:09:11,841 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-05-04 00:09:11,870 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 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 [2021-05-04 00:09:12,051 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-04 00:09:12,051 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-04 00:09:12,051 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-04 00:09:12,051 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-04 00:09:12,052 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-04 00:09:12,052 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-04 00:09:12,052 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-04 00:09:12,052 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-04 00:09:12,467 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-04 00:09:12,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-04 00:09:12,487 INFO L82 PathProgramCache]: Analyzing trace with hash -2020444322, now seen corresponding path program 1 times [2021-05-04 00:09:12,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-04 00:09:12,509 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624233253] [2021-05-04 00:09:12,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-04 00:09:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-04 00:09:12,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-05-04 00:09:12,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624233253] [2021-05-04 00:09:12,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-04 00:09:12,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-04 00:09:12,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787222910] [2021-05-04 00:09:12,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-05-04 00:09:12,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-04 00:09:12,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-05-04 00:09:12,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-05-04 00:09:12,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:09:12,762 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-04 00:09:12,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-05-04 00:09:12,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-04 00:09:12,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-04 00:09:12,867 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-04 00:09:12,890 INFO L202 PluginConnector]: Adding new model spaghetti.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.05 12:09:12 BasicIcfg [2021-05-04 00:09:12,891 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-04 00:09:12,892 INFO L168 Benchmark]: Toolchain (without parser) took 1586.21 ms. Allocated memory is still 360.7 MB. Free memory was 340.5 MB in the beginning and 312.3 MB in the end (delta: 28.2 MB). Peak memory consumption was 30.2 MB. Max. memory is 16.0 GB. [2021-05-04 00:09:12,893 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.31 ms. Allocated memory is still 360.7 MB. Free memory was 341.6 MB in the beginning and 341.5 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-04 00:09:12,894 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.24 ms. Allocated memory is still 360.7 MB. Free memory was 340.4 MB in the beginning and 339.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-04 00:09:12,894 INFO L168 Benchmark]: Boogie Preprocessor took 19.60 ms. Allocated memory is still 360.7 MB. Free memory was 339.0 MB in the beginning and 338.0 MB in the end (delta: 947.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-04 00:09:12,895 INFO L168 Benchmark]: RCFGBuilder took 331.81 ms. Allocated memory is still 360.7 MB. Free memory was 338.0 MB in the beginning and 327.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-05-04 00:09:12,895 INFO L168 Benchmark]: TraceAbstraction took 1190.03 ms. Allocated memory is still 360.7 MB. Free memory was 327.0 MB in the beginning and 312.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.0 GB. [2021-05-04 00:09:12,898 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 0.31 ms. Allocated memory is still 360.7 MB. Free memory was 341.6 MB in the beginning and 341.5 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 37.24 ms. Allocated memory is still 360.7 MB. Free memory was 340.4 MB in the beginning and 339.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 19.60 ms. Allocated memory is still 360.7 MB. Free memory was 339.0 MB in the beginning and 338.0 MB in the end (delta: 947.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 331.81 ms. Allocated memory is still 360.7 MB. Free memory was 338.0 MB in the beginning and 327.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1190.03 ms. Allocated memory is still 360.7 MB. Free memory was 327.0 MB in the beginning and 312.3 MB in the end (delta: 14.7 MB). Peak memory consumption was 15.6 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: 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] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.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] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 533, positive: 519, positive conditional: 0, positive unconditional: 519, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 419, positive: 405, positive conditional: 0, positive unconditional: 405, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 419, positive: 372, positive conditional: 0, positive unconditional: 372, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 47, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 317, positive: 234, positive conditional: 0, positive unconditional: 234, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 533, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 419, unknown conditional: 0, unknown unconditional: 419] , Statistics on independence cache: Total cache size (in pairs): 419, Positive cache size: 405, Positive conditional cache size: 0, Positive unconditional cache size: 405, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, 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: 47, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 317, positive: 234, positive conditional: 0, positive unconditional: 234, negative: 83, negative conditional: 0, negative unconditional: 83, 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): 419, Positive cache size: 405, Positive conditional cache size: 0, Positive unconditional cache size: 405, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14, Eliminated conditions: 0 ], Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 376, Number of persistent set computation: 57, Number of trivial persistent sets: 40, Underlying independence relation: CachedIndependenceRelation.Independence Queries: [ total: 533, positive: 519, positive conditional: 0, positive unconditional: 519, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 419, positive: 405, positive conditional: 0, positive unconditional: 405, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 419, positive: 372, positive conditional: 0, positive unconditional: 372, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 47, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 47, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 317, positive: 234, positive conditional: 0, positive unconditional: 234, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 533, positive: 114, positive conditional: 0, positive unconditional: 114, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 419, unknown conditional: 0, unknown unconditional: 419] , Statistics on independence cache: Total cache size (in pairs): 419, Positive cache size: 405, Positive conditional cache size: 0, Positive unconditional cache size: 405, Negative cache size: 14, Negative conditional cache size: 0, Negative unconditional cache size: 14 - PositiveResult [Line: 66]: 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 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 969.3ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.2ms, PartialOrderReductionTime: 501.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4, 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: 10.0ms SsaConstructionTime, 25.4ms SatisfiabilityAnalysisTime, 124.0ms InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 109 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 1/1 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...