/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/regression/fork_join_NotMod.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788 [2021-06-02 05:07:35,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-02 05:07:35,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-02 05:07:35,677 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-02 05:07:35,730 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 [2021-06-02 05:07:35,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-02 05:07:35,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-02 05:07:35,764 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-02 05:07:35,764 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-02 05:07:35,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-02 05:07:35,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-02 05:07:35,766 INFO L138 SettingsManager]: * Use SBE=true [2021-06-02 05:07:35,767 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-02 05:07:35,767 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-02 05:07:35,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-02 05:07:35,768 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-02 05:07:35,768 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-02 05:07:35,768 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-02 05:07:35,768 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-02 05:07:35,768 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-02 05:07:35,769 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-02 05:07:35,769 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-02 05:07:35,769 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-02 05:07:35,769 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-02 05:07:35,769 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-02 05:07:35,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-02 05:07:35,770 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-02 05:07:35,770 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-02 05:07:35,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-02 05:07:35,770 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-02 05:07:35,770 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-02 05:07:35,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-02 05:07:35,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-02 05:07:35,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-02 05:07:35,771 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-02 05:07:35,771 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-02 05:07:35,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-02 05:07:35,771 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-06-02 05:07:35,771 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-02 05:07:36,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-02 05:07:36,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-02 05:07:36,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-02 05:07:36,121 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-02 05:07:36,122 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-02 05:07:36,123 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_join_NotMod.bpl [2021-06-02 05:07:36,123 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/regression/fork_join_NotMod.bpl' [2021-06-02 05:07:36,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-02 05:07:36,156 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-02 05:07:36,157 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-02 05:07:36,157 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-02 05:07:36,157 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-02 05:07:36,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 05:07:36" (1/1) ... [2021-06-02 05:07:36,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 05:07:36" (1/1) ... [2021-06-02 05:07:36,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-02 05:07:36,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-02 05:07:36,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-02 05:07:36,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-02 05:07:36,192 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 05:07:36" (1/1) ... [2021-06-02 05:07:36,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 05:07:36" (1/1) ... [2021-06-02 05:07:36,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 05:07:36" (1/1) ... [2021-06-02 05:07:36,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 05:07:36" (1/1) ... [2021-06-02 05:07:36,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 05:07:36" (1/1) ... [2021-06-02 05:07:36,196 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 05:07:36" (1/1) ... [2021-06-02 05:07:36,196 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 05:07:36" (1/1) ... [2021-06-02 05:07:36,197 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-02 05:07:36,199 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-02 05:07:36,199 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-02 05:07:36,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-02 05:07:36,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 05:07:36" (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 [2021-06-02 05:07:36,266 INFO L130 BoogieDeclarations]: Found specification of procedure increment [2021-06-02 05:07:36,267 INFO L138 BoogieDeclarations]: Found implementation of procedure increment [2021-06-02 05:07:36,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-02 05:07:36,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-02 05:07:36,268 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-02 05:07:36,407 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-02 05:07:36,408 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-02 05:07:36,409 INFO L202 PluginConnector]: Adding new model fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 05:07:36 BoogieIcfgContainer [2021-06-02 05:07:36,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-02 05:07:36,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-02 05:07:36,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-02 05:07:36,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-02 05:07:36,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.06 05:07:36" (1/2) ... [2021-06-02 05:07:36,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f3132d8 and model type fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.06 05:07:36, skipping insertion in model container [2021-06-02 05:07:36,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.06 05:07:36" (2/2) ... [2021-06-02 05:07:36,417 INFO L111 eAbstractionObserver]: Analyzing ICFG fork_join_NotMod.bpl [2021-06-02 05:07:36,424 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-02 05:07:36,424 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-02 05:07:36,424 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-06-02 05:07:36,426 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-02 05:07:36,453 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:07:36,454 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:07:36,454 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_n not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:07:36,455 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:07:36,460 WARN L313 ript$VariableManager]: TermVariabe incrementThread1of1ForFork0_res not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-02 05:07:36,471 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-02 05:07:36,492 INFO L255 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 [2021-06-02 05:07:36,554 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-02 05:07:36,555 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-02 05:07:36,555 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-02 05:07:36,555 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-02 05:07:36,556 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-02 05:07:36,559 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-02 05:07:36,559 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-02 05:07:36,559 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-02 05:07:36,612 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-02 05:07:36,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:07:36,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1538645, now seen corresponding path program 1 times [2021-06-02 05:07:36,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:07:36,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113394260] [2021-06-02 05:07:36,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:07:36,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:07:36,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:07:36,734 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:07:36,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113394260] [2021-06-02 05:07:36,735 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113394260] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 05:07:36,735 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 05:07:36,735 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-06-02 05:07:36,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474293137] [2021-06-02 05:07:36,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 05:07:36,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:07:36,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 05:07:36,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-02 05:07:36,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:07:36,752 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:07:36,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2021-06-02 05:07:36,758 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:07:36,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:07:36,772 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-02 05:07:36,772 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2021-06-02 05:07:36,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-02 05:07:36,776 INFO L82 PathProgramCache]: Analyzing trace with hash 47698052, now seen corresponding path program 1 times [2021-06-02 05:07:36,776 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-02 05:07:36,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140619976] [2021-06-02 05:07:36,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-02 05:07:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-02 05:07:36,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-02 05:07:36,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-02 05:07:36,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140619976] [2021-06-02 05:07:36,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140619976] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-02 05:07:36,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-02 05:07:36,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-02 05:07:36,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833211006] [2021-06-02 05:07:36,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-02 05:07:36,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-02 05:07:36,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-02 05:07:36,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-02 05:07:36,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:07:36,794 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-02 05:07:36,795 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-06-02 05:07:36,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:07:36,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-02 05:07:36,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:07:36,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-02 05:07:36,820 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-02 05:07:36,828 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-02 05:07:36,829 INFO L202 PluginConnector]: Adding new model fork_join_NotMod.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.06 05:07:36 BasicIcfg [2021-06-02 05:07:36,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-02 05:07:36,831 INFO L168 Benchmark]: Toolchain (without parser) took 674.76 ms. Allocated memory is still 375.4 MB. Free memory was 354.5 MB in the beginning and 343.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 16.0 GB. [2021-06-02 05:07:36,831 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 375.4 MB. Free memory is still 355.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-02 05:07:36,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.42 ms. Allocated memory is still 375.4 MB. Free memory was 354.5 MB in the beginning and 353.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-02 05:07:36,832 INFO L168 Benchmark]: Boogie Preprocessor took 13.46 ms. Allocated memory is still 375.4 MB. Free memory was 353.0 MB in the beginning and 352.2 MB in the end (delta: 771.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-02 05:07:36,833 INFO L168 Benchmark]: RCFGBuilder took 210.32 ms. Allocated memory is still 375.4 MB. Free memory was 352.1 MB in the beginning and 343.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-06-02 05:07:36,834 INFO L168 Benchmark]: TraceAbstraction took 417.59 ms. Allocated memory is still 375.4 MB. Free memory was 342.7 MB in the beginning and 343.5 MB in the end (delta: -798.1 kB). Peak memory consumption was 405.4 kB. Max. memory is 16.0 GB. [2021-06-02 05:07:36,836 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 0.13 ms. Allocated memory is still 375.4 MB. Free memory is still 355.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.42 ms. Allocated memory is still 375.4 MB. Free memory was 354.5 MB in the beginning and 353.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.46 ms. Allocated memory is still 375.4 MB. Free memory was 353.0 MB in the beginning and 352.2 MB in the end (delta: 771.1 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 210.32 ms. Allocated memory is still 375.4 MB. Free memory was 352.1 MB in the beginning and 343.3 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 417.59 ms. Allocated memory is still 375.4 MB. Free memory was 342.7 MB in the beginning and 343.5 MB in the end (delta: -798.1 kB). Peak memory consumption was 405.4 kB. 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: 61, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 45, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 45, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] ], Cache Queries: [ total: 61, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 45, unknown conditional: 0, unknown unconditional: 45] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, 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: 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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] , 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): 45, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, 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: 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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] , 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): 45, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0 ], Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 32, Number of persistent set computation: 35, Number of trivial persistent sets: 33, Underlying independence relation: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 61, positive conditional: 0, positive unconditional: 61, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 45, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 45, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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] ], Cache Queries: [ total: 61, positive: 16, positive conditional: 0, positive unconditional: 16, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 45, unknown conditional: 0, unknown unconditional: 45] , Statistics on independence cache: Total cache size (in pairs): 45, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 28]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 27]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 24]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 25]: 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 3 procedures, 21 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 309.3ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.4ms, PartialOrderReductionTime: 81.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 6, 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: 3.0ms SsaConstructionTime, 13.3ms SatisfiabilityAnalysisTime, 46.6ms InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 19 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...