/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-NewStatesSleep-NoLbe-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/regression/example_multiple_interleavings.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 20:12:47,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 20:12:47,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 20:12:47,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-16 20:12:47,822 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-NewStatesSleep-NoLbe-Symm.epf [2021-06-16 20:12:47,859 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 20:12:47,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 20:12:47,860 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 20:12:47,860 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 20:12:47,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 20:12:47,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 20:12:47,863 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 20:12:47,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 20:12:47,863 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 20:12:47,864 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 20:12:47,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 20:12:47,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 20:12:47,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 20:12:47,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 20:12:47,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 20:12:47,865 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 20:12:47,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 20:12:47,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 20:12:47,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 20:12:47,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 20:12:47,866 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 20:12:47,866 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 20:12:47,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 20:12:47,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 20:12:47,866 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 20:12:47,866 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 20:12:47,866 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 20:12:47,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 20:12:47,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 20:12:47,867 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 20:12:47,867 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 20:12:47,867 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 20:12:47,867 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 20:12:47,868 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-06-16 20:12:47,868 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 20:12:48,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 20:12:48,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 20:12:48,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 20:12:48,216 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 20:12:48,218 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 20:12:48,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example_multiple_interleavings.bpl [2021-06-16 20:12:48,219 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/example_multiple_interleavings.bpl' [2021-06-16 20:12:48,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 20:12:48,247 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 20:12:48,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 20:12:48,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 20:12:48,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 20:12:48,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:12:48" (1/1) ... [2021-06-16 20:12:48,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:12:48" (1/1) ... [2021-06-16 20:12:48,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 20:12:48,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 20:12:48,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 20:12:48,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 20:12:48,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:12:48" (1/1) ... [2021-06-16 20:12:48,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:12:48" (1/1) ... [2021-06-16 20:12:48,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:12:48" (1/1) ... [2021-06-16 20:12:48,278 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:12:48" (1/1) ... [2021-06-16 20:12:48,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:12:48" (1/1) ... [2021-06-16 20:12:48,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:12:48" (1/1) ... [2021-06-16 20:12:48,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:12:48" (1/1) ... [2021-06-16 20:12:48,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 20:12:48,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 20:12:48,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 20:12:48,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 20:12:48,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:12:48" (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 [2021-06-16 20:12:48,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_y given in one single declaration [2021-06-16 20:12:48,370 INFO L130 BoogieDeclarations]: Found specification of procedure set_y [2021-06-16 20:12:48,370 INFO L138 BoogieDeclarations]: Found implementation of procedure set_y [2021-06-16 20:12:48,370 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_x_1 given in one single declaration [2021-06-16 20:12:48,370 INFO L130 BoogieDeclarations]: Found specification of procedure set_x_1 [2021-06-16 20:12:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure set_x_1 [2021-06-16 20:12:48,371 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_x_0 given in one single declaration [2021-06-16 20:12:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure set_x_0 [2021-06-16 20:12:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure set_x_0 [2021-06-16 20:12:48,371 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 20:12:48,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 20:12:48,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 20:12:48,372 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 20:12:48,531 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 20:12:48,531 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-16 20:12:48,544 INFO L202 PluginConnector]: Adding new model example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 08:12:48 BoogieIcfgContainer [2021-06-16 20:12:48,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 20:12:48,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 20:12:48,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 20:12:48,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 20:12:48,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 08:12:48" (1/2) ... [2021-06-16 20:12:48,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53521fd0 and model type example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 08:12:48, skipping insertion in model container [2021-06-16 20:12:48,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 08:12:48" (2/2) ... [2021-06-16 20:12:48,551 INFO L111 eAbstractionObserver]: Analyzing ICFG example_multiple_interleavings.bpl [2021-06-16 20:12:48,555 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 20:12:48,555 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 20:12:48,556 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 20:12:48,556 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 20:12:48,653 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-06-16 20:12:48,675 INFO L255 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 [2021-06-16 20:12:48,761 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 20:12:48,765 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 20:12:48,766 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 20:12:48,766 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 20:12:48,766 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 20:12:48,766 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 20:12:48,766 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 20:12:48,766 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 20:12:48,828 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 20:12:48,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:12:48,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1736232596, now seen corresponding path program 1 times [2021-06-16 20:12:48,855 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:12:48,856 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886701981] [2021-06-16 20:12:48,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:12:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:12:49,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 20:12:49,151 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:12:49,151 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886701981] [2021-06-16 20:12:49,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886701981] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 20:12:49,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 20:12:49,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 20:12:49,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566122815] [2021-06-16 20:12:49,156 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 20:12:49,157 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:12:49,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 20:12:49,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-16 20:12:49,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:12:49,188 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:12:49,190 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-06-16 20:12:49,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:12:49,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 20:12:49,250 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 20:12:49,250 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 20:12:49,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 20:12:49,251 INFO L82 PathProgramCache]: Analyzing trace with hash 617534730, now seen corresponding path program 2 times [2021-06-16 20:12:49,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 20:12:49,252 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864672205] [2021-06-16 20:12:49,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 20:12:49,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 20:12:49,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 20:12:49,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 20:12:49,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864672205] [2021-06-16 20:12:49,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864672205] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 20:12:49,318 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 20:12:49,318 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 20:12:49,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513145439] [2021-06-16 20:12:49,320 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-16 20:12:49,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 20:12:49,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-16 20:12:49,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-06-16 20:12:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:12:49,322 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 20:12:49,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-06-16 20:12:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-16 20:12:49,322 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 20:12:49,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 20:12:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-16 20:12:49,379 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-16 20:12:49,385 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-16 20:12:49,388 INFO L202 PluginConnector]: Adding new model example_multiple_interleavings.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.06 08:12:49 BasicIcfg [2021-06-16 20:12:49,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-16 20:12:49,389 INFO L168 Benchmark]: Toolchain (without parser) took 1141.83 ms. Allocated memory is still 255.9 MB. Free memory was 236.9 MB in the beginning and 227.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 8.0 GB. [2021-06-16 20:12:49,389 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 20:12:49,390 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.85 ms. Allocated memory is still 255.9 MB. Free memory was 236.8 MB in the beginning and 235.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 20:12:49,391 INFO L168 Benchmark]: Boogie Preprocessor took 10.42 ms. Allocated memory is still 255.9 MB. Free memory was 235.4 MB in the beginning and 234.5 MB in the end (delta: 872.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-16 20:12:49,391 INFO L168 Benchmark]: RCFGBuilder took 262.24 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 225.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-06-16 20:12:49,392 INFO L168 Benchmark]: TraceAbstraction took 841.78 ms. Allocated memory is still 255.9 MB. Free memory was 225.4 MB in the beginning and 227.8 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-16 20:12:49,393 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 0.15 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 22.85 ms. Allocated memory is still 255.9 MB. Free memory was 236.8 MB in the beginning and 235.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.42 ms. Allocated memory is still 255.9 MB. Free memory was 235.4 MB in the beginning and 234.5 MB in the end (delta: 872.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 262.24 ms. Allocated memory is still 255.9 MB. Free memory was 234.5 MB in the beginning and 225.9 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 841.78 ms. Allocated memory is still 255.9 MB. Free memory was 225.4 MB in the beginning and 227.8 MB in the end (delta: -2.3 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 303, positive: 262, positive conditional: 262, positive unconditional: 0, negative: 41, negative conditional: 41, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 264, positive: 262, positive conditional: 262, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 264, positive: 262, positive conditional: 0, positive unconditional: 262, 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: 51, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 51, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 264, positive: 212, positive conditional: 0, positive unconditional: 212, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 51, unknown conditional: 0, unknown unconditional: 51] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, SemanticConditionEliminator.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Eliminated conditions: 3, SemanticConditionEliminator.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 28, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 28, negative conditional: 0, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 50, Positive conditional cache size: 0, Positive unconditional cache size: 50, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Eliminated conditions: 3 ], Maximal queried relation: 2, Independence queries for same thread: 39 - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 31 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 679.8ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.2ms, PartialOrderReductionTime: 165.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 8, 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: 7.3ms SsaConstructionTime, 50.2ms SatisfiabilityAnalysisTime, 181.9ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...