/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-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 10:21:38,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 10:21:38,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 10:21:38,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 10:21:38,208 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-NewStatesSleepPersistentFixedOrder-NoLbe-Lockstep.epf [2021-06-17 10:21:38,223 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 10:21:38,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 10:21:38,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 10:21:38,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 10:21:38,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 10:21:38,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 10:21:38,225 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 10:21:38,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 10:21:38,225 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 10:21:38,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 10:21:38,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 10:21:38,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 10:21:38,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 10:21:38,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 10:21:38,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 10:21:38,226 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 10:21:38,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 10:21:38,226 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 10:21:38,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 10:21:38,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 10:21:38,226 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 10:21:38,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 10:21:38,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 10:21:38,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 10:21:38,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 10:21:38,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 10:21:38,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 10:21:38,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 10:21:38,237 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-17 10:21:38,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 10:21:38,237 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 10:21:38,238 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 10:21:38,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 10:21:38,238 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 10:21:38,238 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 10:21:38,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 10:21:38,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 10:21:38,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 10:21:38,488 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 10:21:38,489 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 10:21:38,489 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl [2021-06-17 10:21:38,490 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/dec-subseq.wvr.bpl' [2021-06-17 10:21:38,507 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 10:21:38,508 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 10:21:38,509 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 10:21:38,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 10:21:38,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 10:21:38,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:21:38" (1/1) ... [2021-06-17 10:21:38,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:21:38" (1/1) ... [2021-06-17 10:21:38,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 10:21:38,529 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 10:21:38,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 10:21:38,529 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 10:21:38,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:21:38" (1/1) ... [2021-06-17 10:21:38,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:21:38" (1/1) ... [2021-06-17 10:21:38,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:21:38" (1/1) ... [2021-06-17 10:21:38,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:21:38" (1/1) ... [2021-06-17 10:21:38,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:21:38" (1/1) ... [2021-06-17 10:21:38,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:21:38" (1/1) ... [2021-06-17 10:21:38,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:21:38" (1/1) ... [2021-06-17 10:21:38,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 10:21:38,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 10:21:38,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 10:21:38,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 10:21:38,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:21:38" (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 [2021-06-17 10:21:38,600 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 10:21:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 10:21:38,600 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 10:21:38,600 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 10:21:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 10:21:38,600 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 10:21:38,600 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 10:21:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 10:21:38,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 10:21:38,601 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 10:21:38,753 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 10:21:38,753 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 10:21:38,754 INFO L202 PluginConnector]: Adding new model dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 10:21:38 BoogieIcfgContainer [2021-06-17 10:21:38,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 10:21:38,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 10:21:38,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 10:21:38,758 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 10:21:38,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 10:21:38" (1/2) ... [2021-06-17 10:21:38,758 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@165c4198 and model type dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 10:21:38, skipping insertion in model container [2021-06-17 10:21:38,758 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 10:21:38" (2/2) ... [2021-06-17 10:21:38,759 INFO L111 eAbstractionObserver]: Analyzing ICFG dec-subseq.wvr.bpl [2021-06-17 10:21:38,763 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 10:21:38,763 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 10:21:38,763 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 10:21:38,764 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 10:21:38,783 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-17 10:21:38,797 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 10:21:38,832 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 10:21:38,832 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 10:21:38,832 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 10:21:38,833 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 10:21:38,833 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 10:21:38,833 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 10:21:38,833 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 10:21:38,833 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 10:21:38,969 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:21:38,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:21:38,973 INFO L82 PathProgramCache]: Analyzing trace with hash -90717349, now seen corresponding path program 1 times [2021-06-17 10:21:38,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:21:38,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045913620] [2021-06-17 10:21:38,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:21:39,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:21:39,169 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 10:21:39,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:21:39,170 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045913620] [2021-06-17 10:21:39,170 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045913620] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:21:39,171 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343413583] [2021-06-17 10:21:39,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:21:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:21:39,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-17 10:21:39,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:21:39,331 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 10:21:39,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343413583] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 10:21:39,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-17 10:21:39,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2021-06-17 10:21:39,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017712551] [2021-06-17 10:21:39,340 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 10:21:39,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:21:39,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 10:21:39,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-17 10:21:39,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:39,354 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:21:39,355 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 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) [2021-06-17 10:21:39,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:39,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 10:21:39,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-06-17 10:21:39,621 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:21:39,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:21:39,622 INFO L82 PathProgramCache]: Analyzing trace with hash -2110748960, now seen corresponding path program 2 times [2021-06-17 10:21:39,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:21:39,622 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652814703] [2021-06-17 10:21:39,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:21:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:21:39,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 10:21:39,707 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:21:39,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652814703] [2021-06-17 10:21:39,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652814703] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:21:39,707 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [896603220] [2021-06-17 10:21:39,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:21:39,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 10:21:39,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:21:39,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 10:21:39,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:21:39,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-06-17 10:21:39,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 10:21:39,870 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 10:21:39,871 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 10:21:39,871 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-06-17 10:21:39,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-17 10:21:39,906 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 10:21:39,908 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 10:21:39,909 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 10:21:39,909 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2021-06-17 10:21:39,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 10:21:39,941 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [896603220] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:21:39,941 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:21:39,941 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-06-17 10:21:39,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027207033] [2021-06-17 10:21:39,942 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 10:21:39,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:21:39,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 10:21:39,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-06-17 10:21:39,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:39,943 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:21:39,943 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.5384615384615383) internal successors, (33), 12 states have internal predecessors, (33), 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) [2021-06-17 10:21:39,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 10:21:39,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:40,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 10:21:40,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 10:21:40,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:21:40,289 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:21:40,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:21:40,289 INFO L82 PathProgramCache]: Analyzing trace with hash -341294103, now seen corresponding path program 3 times [2021-06-17 10:21:40,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:21:40,290 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045211466] [2021-06-17 10:21:40,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:21:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:21:40,331 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-06-17 10:21:40,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:21:40,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045211466] [2021-06-17 10:21:40,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045211466] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 10:21:40,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 10:21:40,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-17 10:21:40,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815891358] [2021-06-17 10:21:40,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-17 10:21:40,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:21:40,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-17 10:21:40,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-17 10:21:40,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:40,333 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:21:40,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2021-06-17 10:21:40,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 10:21:40,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 10:21:40,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:40,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 10:21:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 10:21:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:40,371 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-17 10:21:40,371 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:21:40,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:21:40,371 INFO L82 PathProgramCache]: Analyzing trace with hash -875006758, now seen corresponding path program 4 times [2021-06-17 10:21:40,372 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:21:40,372 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459536929] [2021-06-17 10:21:40,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:21:40,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:21:40,399 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-06-17 10:21:40,399 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:21:40,399 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459536929] [2021-06-17 10:21:40,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459536929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 10:21:40,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 10:21:40,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-17 10:21:40,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962476722] [2021-06-17 10:21:40,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-17 10:21:40,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:21:40,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-17 10:21:40,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-17 10:21:40,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:40,401 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:21:40,401 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2021-06-17 10:21:40,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 10:21:40,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 10:21:40,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:40,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 10:21:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 10:21:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:40,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:40,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-17 10:21:40,442 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:21:40,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:21:40,442 INFO L82 PathProgramCache]: Analyzing trace with hash 90818748, now seen corresponding path program 5 times [2021-06-17 10:21:40,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:21:40,442 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160648696] [2021-06-17 10:21:40,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:21:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:21:40,523 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 41 proven. 15 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-06-17 10:21:40,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:21:40,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160648696] [2021-06-17 10:21:40,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160648696] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:21:40,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103690053] [2021-06-17 10:21:40,523 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:21:40,556 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-17 10:21:40,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 10:21:40,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2021-06-17 10:21:40,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:21:40,680 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-06-17 10:21:40,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103690053] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 10:21:40,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-17 10:21:40,681 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2021-06-17 10:21:40,681 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374629746] [2021-06-17 10:21:40,683 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 10:21:40,683 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:21:40,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 10:21:40,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-06-17 10:21:40,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:40,684 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:21:40,684 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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) [2021-06-17 10:21:40,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 10:21:40,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 10:21:40,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:40,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:40,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:40,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 10:21:40,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 10:21:40,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:40,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:40,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 10:21:40,950 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:21:40,950 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 10:21:40,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 10:21:40,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1240461850, now seen corresponding path program 1 times [2021-06-17 10:21:40,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 10:21:40,951 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286500448] [2021-06-17 10:21:40,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 10:21:40,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:21:41,181 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-17 10:21:41,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 10:21:41,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286500448] [2021-06-17 10:21:41,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286500448] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:21:41,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [998553670] [2021-06-17 10:21:41,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 10:21:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 10:21:41,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-17 10:21:41,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 10:21:41,519 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 10:21:41,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 26 [2021-06-17 10:21:41,524 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 10:21:41,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 10:21:41,532 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-17 10:21:41,532 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:44, output treesize:30 [2021-06-17 10:21:41,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 10:21:41,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 10:21:41,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 10:21:41,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 10 [2021-06-17 10:21:41,570 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 10:21:41,575 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 10:21:41,577 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 10:21:41,578 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:35, output treesize:5 [2021-06-17 10:21:41,608 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-17 10:21:41,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [998553670] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 10:21:41,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 10:21:41,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2021-06-17 10:21:41,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445793370] [2021-06-17 10:21:41,609 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-17 10:21:41,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 10:21:41,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-17 10:21:41,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2021-06-17 10:21:41,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:41,610 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 10:21:41,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.217391304347826) internal successors, (51), 22 states have internal predecessors, (51), 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) [2021-06-17 10:21:41,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 10:21:41,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 10:21:41,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:41,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:41,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 10:21:41,610 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 10:21:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 10:21:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 10:21:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 10:21:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 10:21:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-17 10:21:42,368 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-17 10:21:42,375 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-17 10:21:42,377 INFO L202 PluginConnector]: Adding new model dec-subseq.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.06 10:21:42 BasicIcfg [2021-06-17 10:21:42,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-17 10:21:42,377 INFO L168 Benchmark]: Toolchain (without parser) took 3869.18 ms. Allocated memory was 176.2 MB in the beginning and 211.8 MB in the end (delta: 35.7 MB). Free memory was 156.4 MB in the beginning and 176.1 MB in the end (delta: -19.7 MB). Peak memory consumption was 16.9 MB. Max. memory is 8.0 GB. [2021-06-17 10:21:42,377 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 176.2 MB. Free memory is still 157.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-17 10:21:42,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.45 ms. Allocated memory is still 176.2 MB. Free memory was 156.3 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-17 10:21:42,378 INFO L168 Benchmark]: Boogie Preprocessor took 13.39 ms. Allocated memory is still 176.2 MB. Free memory was 154.8 MB in the beginning and 153.9 MB in the end (delta: 965.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-17 10:21:42,378 INFO L168 Benchmark]: RCFGBuilder took 210.92 ms. Allocated memory is still 176.2 MB. Free memory was 153.9 MB in the beginning and 140.6 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-17 10:21:42,378 INFO L168 Benchmark]: TraceAbstraction took 3621.22 ms. Allocated memory was 176.2 MB in the beginning and 211.8 MB in the end (delta: 35.7 MB). Free memory was 140.2 MB in the beginning and 176.1 MB in the end (delta: -35.9 MB). Peak memory consumption was 1.1 MB. Max. memory is 8.0 GB. [2021-06-17 10:21:42,378 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 0.12 ms. Allocated memory is still 176.2 MB. Free memory is still 157.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.45 ms. Allocated memory is still 176.2 MB. Free memory was 156.3 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.39 ms. Allocated memory is still 176.2 MB. Free memory was 154.8 MB in the beginning and 153.9 MB in the end (delta: 965.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 210.92 ms. Allocated memory is still 176.2 MB. Free memory was 153.9 MB in the beginning and 140.6 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3621.22 ms. Allocated memory was 176.2 MB in the beginning and 211.8 MB in the end (delta: 35.7 MB). Free memory was 140.2 MB in the beginning and 176.1 MB in the end (delta: -35.9 MB). Peak memory consumption was 1.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1332, positive: 1053, positive conditional: 750, positive unconditional: 303, negative: 279, negative conditional: 264, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1105, positive: 1053, positive conditional: 750, positive unconditional: 303, negative: 52, negative conditional: 37, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1105, positive: 1014, positive conditional: 0, positive unconditional: 1014, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 177, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 177, positive: 167, positive conditional: 0, positive unconditional: 167, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1105, positive: 842, positive conditional: 0, positive unconditional: 842, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 177, unknown conditional: 0, unknown unconditional: 177] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123 ], Maximal queried relation: 6, Independence queries for same thread: 227 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 185, Number of persistent set computation: 1175, Number of trivial persistent sets: 1024, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1332, positive: 1053, positive conditional: 750, positive unconditional: 303, negative: 279, negative conditional: 264, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1105, positive: 1053, positive conditional: 750, positive unconditional: 303, negative: 52, negative conditional: 37, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1105, positive: 1014, positive conditional: 0, positive unconditional: 1014, negative: 91, negative conditional: 0, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 177, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 177, positive: 167, positive conditional: 0, positive unconditional: 167, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1105, positive: 842, positive conditional: 0, positive unconditional: 842, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 177, unknown conditional: 0, unknown unconditional: 177] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123, SemanticConditionEliminator.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 328, positive: 39, positive conditional: 39, positive unconditional: 0, negative: 289, negative conditional: 146, negative unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 43, positive: 11, positive conditional: 6, positive unconditional: 5, negative: 32, negative conditional: 27, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 151, positive: 62, positive conditional: 11, positive unconditional: 51, negative: 88, negative conditional: 77, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 328, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 262, negative conditional: 119, negative unconditional: 143, unknown: 33, unknown conditional: 33, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 210, Positive cache size: 178, Positive conditional cache size: 6, Positive unconditional cache size: 172, Negative cache size: 32, Negative conditional cache size: 27, Negative unconditional cache size: 5, Eliminated conditions: 123 ], Maximal queried relation: 6, Independence queries for same thread: 227 - PositiveResult [Line: 62]: 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 5 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3566.7ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 6.4ms, PartialOrderReductionTime: 998.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 43, 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: 38.5ms SsaConstructionTime, 150.8ms SatisfiabilityAnalysisTime, 1303.1ms InterpolantComputationTime, 393 NumberOfCodeBlocks, 381 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 383 ConstructedInterpolants, 8 QuantifiedInterpolants, 1426 SizeOfPredicates, 18 NumberOfNonLiveVariables, 264 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 381/434 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...