/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-DelaySleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 16:21:11,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 16:21:11,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 16:21:11,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 16:21:11,857 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-DelaySleep-NoLbe-Random42.epf [2021-06-06 16:21:11,885 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 16:21:11,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 16:21:11,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 16:21:11,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 16:21:11,888 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 16:21:11,888 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 16:21:11,888 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 16:21:11,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 16:21:11,888 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 16:21:11,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 16:21:11,889 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 16:21:11,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 16:21:11,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 16:21:11,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 16:21:11,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 16:21:11,889 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 16:21:11,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 16:21:11,890 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 16:21:11,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 16:21:11,890 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 16:21:11,890 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 16:21:11,890 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 16:21:11,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 16:21:11,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 16:21:11,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 16:21:11,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 16:21:11,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 16:21:11,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 16:21:11,891 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 16:21:11,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 16:21:11,891 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 16:21:11,891 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 16:21:11,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 16:21:11,892 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 16:21:11,892 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 16:21:11,892 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 16:21:12,145 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 16:21:12,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 16:21:12,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 16:21:12,161 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 16:21:12,162 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 16:21:12,162 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl [2021-06-06 16:21:12,177 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl' [2021-06-06 16:21:12,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 16:21:12,206 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 16:21:12,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 16:21:12,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 16:21:12,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 16:21:12,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:21:12" (1/1) ... [2021-06-06 16:21:12,223 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:21:12" (1/1) ... [2021-06-06 16:21:12,229 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 16:21:12,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 16:21:12,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 16:21:12,230 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 16:21:12,236 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:21:12" (1/1) ... [2021-06-06 16:21:12,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:21:12" (1/1) ... [2021-06-06 16:21:12,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:21:12" (1/1) ... [2021-06-06 16:21:12,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:21:12" (1/1) ... [2021-06-06 16:21:12,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:21:12" (1/1) ... [2021-06-06 16:21:12,242 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:21:12" (1/1) ... [2021-06-06 16:21:12,243 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:21:12" (1/1) ... [2021-06-06 16:21:12,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 16:21:12,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 16:21:12,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 16:21:12,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 16:21:12,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:21:12" (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 [2021-06-06 16:21:12,321 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 16:21:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 16:21:12,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 16:21:12,322 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 16:21:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 16:21:12,322 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 16:21:12,322 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 16:21:12,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 16:21:12,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 16:21:12,323 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 16:21:12,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 16:21:12,479 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 16:21:12,480 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 04:21:12 BoogieIcfgContainer [2021-06-06 16:21:12,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 16:21:12,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 16:21:12,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 16:21:12,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 16:21:12,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 04:21:12" (1/2) ... [2021-06-06 16:21:12,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@154e0d20 and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 04:21:12, skipping insertion in model container [2021-06-06 16:21:12,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 04:21:12" (2/2) ... [2021-06-06 16:21:12,496 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl [2021-06-06 16:21:12,500 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 16:21:12,500 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 16:21:12,500 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 16:21:12,500 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 16:21:12,533 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-06 16:21:12,548 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 [2021-06-06 16:21:12,585 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 16:21:12,585 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 16:21:12,586 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 16:21:12,586 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 16:21:12,586 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 16:21:12,586 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 16:21:12,586 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 16:21:12,586 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 16:21:12,616 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:21:12,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:21:12,619 INFO L82 PathProgramCache]: Analyzing trace with hash -981518977, now seen corresponding path program 1 times [2021-06-06 16:21:12,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:21:12,625 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499441677] [2021-06-06 16:21:12,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:21:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:21:12,713 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 16:21:12,713 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:21:12,713 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499441677] [2021-06-06 16:21:12,714 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499441677] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 16:21:12,714 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 16:21:12,714 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 16:21:12,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642317679] [2021-06-06 16:21:12,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 16:21:12,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:21:12,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 16:21:12,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 16:21:12,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:12,731 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:21:12,735 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 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) [2021-06-06 16:21:12,735 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:12,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:12,817 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 16:21:12,817 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:21:12,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:21:12,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1119578307, now seen corresponding path program 1 times [2021-06-06 16:21:12,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:21:12,820 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293847110] [2021-06-06 16:21:12,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:21:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:21:12,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 16:21:12,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:21:12,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293847110] [2021-06-06 16:21:12,892 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293847110] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:12,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673274434] [2021-06-06 16:21:12,892 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 [2021-06-06 16:21:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:21:12,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-06 16:21:12,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:21:13,098 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 16:21:13,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673274434] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:13,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 16:21:13,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-06 16:21:13,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540060019] [2021-06-06 16:21:13,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-06 16:21:13,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:21:13,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-06 16:21:13,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-06 16:21:13,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:13,103 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:21:13,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 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) [2021-06-06 16:21:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:13,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:13,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:13,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 16:21:13,384 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:21:13,384 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:21:13,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:21:13,385 INFO L82 PathProgramCache]: Analyzing trace with hash 1434547129, now seen corresponding path program 2 times [2021-06-06 16:21:13,385 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:21:13,385 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094688617] [2021-06-06 16:21:13,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:21:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:21:13,558 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 16:21:13,559 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:21:13,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094688617] [2021-06-06 16:21:13,559 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094688617] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:13,559 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264984214] [2021-06-06 16:21:13,559 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 [2021-06-06 16:21:13,595 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 16:21:13,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 16:21:13,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 23 conjunts are in the unsatisfiable core [2021-06-06 16:21:13,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:21:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 16:21:13,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264984214] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:13,899 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 16:21:13,899 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 21 [2021-06-06 16:21:13,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365042249] [2021-06-06 16:21:13,900 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-06 16:21:13,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:21:13,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-06 16:21:13,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2021-06-06 16:21:13,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:13,903 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:21:13,908 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 1.9545454545454546) internal successors, (43), 21 states have internal predecessors, (43), 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) [2021-06-06 16:21:13,908 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:13,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 16:21:13,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:14,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 16:21:14,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 16:21:14,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:21:14,300 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:21:14,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:21:14,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1256770491, now seen corresponding path program 3 times [2021-06-06 16:21:14,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:21:14,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715324874] [2021-06-06 16:21:14,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:21:14,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:21:14,472 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 16:21:14,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:21:14,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715324874] [2021-06-06 16:21:14,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715324874] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:14,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600666598] [2021-06-06 16:21:14,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 [2021-06-06 16:21:14,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-06-06 16:21:14,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 16:21:14,499 WARN L261 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-06 16:21:14,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:21:14,778 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 16:21:14,778 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600666598] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:14,778 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 16:21:14,778 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-06-06 16:21:14,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723238513] [2021-06-06 16:21:14,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-06 16:21:14,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:21:14,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-06 16:21:14,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=430, Unknown=0, NotChecked=0, Total=506 [2021-06-06 16:21:14,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:14,779 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:21:14,779 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.0434782608695654) internal successors, (47), 22 states have internal predecessors, (47), 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) [2021-06-06 16:21:14,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:14,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 16:21:14,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 16:21:14,780 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:15,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:15,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 16:21:15,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 16:21:15,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 16:21:15,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:21:15,413 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:21:15,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:21:15,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1832668619, now seen corresponding path program 4 times [2021-06-06 16:21:15,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:21:15,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621270022] [2021-06-06 16:21:15,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:21:15,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:21:15,572 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 16:21:15,572 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:21:15,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621270022] [2021-06-06 16:21:15,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621270022] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:15,573 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024608727] [2021-06-06 16:21:15,573 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST 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 [2021-06-06 16:21:15,603 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 16:21:15,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 16:21:15,603 WARN L261 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 33 conjunts are in the unsatisfiable core [2021-06-06 16:21:15,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:21:15,903 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 16:21:15,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024608727] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:15,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 16:21:15,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-06-06 16:21:15,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339597900] [2021-06-06 16:21:15,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 16:21:15,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:21:15,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 16:21:15,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2021-06-06 16:21:15,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:15,905 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:21:15,905 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.0) internal successors, (50), 24 states have internal predecessors, (50), 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) [2021-06-06 16:21:15,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:15,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 16:21:15,905 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 16:21:15,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 16:21:15,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:16,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:16,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 16:21:16,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 16:21:16,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 16:21:16,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-06-06 16:21:16,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:21:16,793 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:21:16,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:21:16,793 INFO L82 PathProgramCache]: Analyzing trace with hash 1083530039, now seen corresponding path program 5 times [2021-06-06 16:21:16,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:21:16,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858561054] [2021-06-06 16:21:16,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:21:16,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:21:16,982 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 16:21:16,983 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:21:16,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858561054] [2021-06-06 16:21:16,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858561054] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:16,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1224594043] [2021-06-06 16:21:16,983 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:21:17,020 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-06 16:21:17,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 16:21:17,020 WARN L261 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-06 16:21:17,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:21:17,372 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 16:21:17,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1224594043] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:17,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 16:21:17,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 25 [2021-06-06 16:21:17,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724691880] [2021-06-06 16:21:17,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-06 16:21:17,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:21:17,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-06 16:21:17,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=572, Unknown=0, NotChecked=0, Total=650 [2021-06-06 16:21:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:17,374 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:21:17,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.076923076923077) internal successors, (54), 25 states have internal predecessors, (54), 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) [2021-06-06 16:21:17,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:17,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 16:21:17,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 16:21:17,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 16:21:17,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-06-06 16:21:17,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:18,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 16:21:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 16:21:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 16:21:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 16:21:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 16:21:18,536 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:21:18,536 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 16:21:18,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 16:21:18,536 INFO L82 PathProgramCache]: Analyzing trace with hash 151618641, now seen corresponding path program 6 times [2021-06-06 16:21:18,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 16:21:18,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714202535] [2021-06-06 16:21:18,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 16:21:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 16:21:18,898 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-06 16:21:18,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 16:21:18,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714202535] [2021-06-06 16:21:18,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714202535] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:18,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695929418] [2021-06-06 16:21:18,898 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:21:18,939 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-06 16:21:18,939 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 16:21:18,940 WARN L261 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-06 16:21:18,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 16:21:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 16:21:19,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695929418] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 16:21:19,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 16:21:19,263 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 24 [2021-06-06 16:21:19,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099007864] [2021-06-06 16:21:19,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-06 16:21:19,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 16:21:19,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-06 16:21:19,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=514, Unknown=0, NotChecked=0, Total=600 [2021-06-06 16:21:19,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:19,264 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 16:21:19,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.0) internal successors, (50), 24 states have internal predecessors, (50), 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) [2021-06-06 16:21:19,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:19,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 16:21:19,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 16:21:19,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 16:21:19,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 16:21:19,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 16:21:19,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 16:21:20,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 16:21:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 16:21:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 16:21:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 16:21:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-06 16:21:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-06 16:21:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-06-06 16:21:20,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 16:21:20,821 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-06 16:21:20,822 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.06 04:21:20 BasicIcfg [2021-06-06 16:21:20,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-06 16:21:20,822 INFO L168 Benchmark]: Toolchain (without parser) took 8616.40 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 336.1 MB in the beginning and 373.7 MB in the end (delta: -37.6 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.0 GB. [2021-06-06 16:21:20,823 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 356.5 MB. Free memory was 337.2 MB in the beginning and 337.1 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 16:21:20,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.81 ms. Allocated memory is still 356.5 MB. Free memory was 336.0 MB in the beginning and 334.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-06 16:21:20,823 INFO L168 Benchmark]: Boogie Preprocessor took 13.74 ms. Allocated memory is still 356.5 MB. Free memory was 334.6 MB in the beginning and 333.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-06 16:21:20,823 INFO L168 Benchmark]: RCFGBuilder took 236.59 ms. Allocated memory is still 356.5 MB. Free memory was 333.6 MB in the beginning and 322.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-06 16:21:20,823 INFO L168 Benchmark]: TraceAbstraction took 8330.05 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 322.0 MB in the beginning and 373.7 MB in the end (delta: -51.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.0 GB. [2021-06-06 16:21:20,823 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 356.5 MB. Free memory was 337.2 MB in the beginning and 337.1 MB in the end (delta: 136.4 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 21.81 ms. Allocated memory is still 356.5 MB. Free memory was 336.0 MB in the beginning and 334.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 13.74 ms. Allocated memory is still 356.5 MB. Free memory was 334.6 MB in the beginning and 333.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 236.59 ms. Allocated memory is still 356.5 MB. Free memory was 333.6 MB in the beginning and 322.5 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 8330.05 ms. Allocated memory was 356.5 MB in the beginning and 427.8 MB in the end (delta: 71.3 MB). Free memory was 322.0 MB in the beginning and 373.7 MB in the end (delta: -51.8 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 878, positive: 672, positive conditional: 672, positive unconditional: 0, negative: 206, negative conditional: 206, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 695, positive: 672, positive conditional: 672, positive unconditional: 0, negative: 23, negative conditional: 23, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 695, positive: 650, positive conditional: 0, positive unconditional: 650, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 41, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 41, positive: 40, positive conditional: 0, positive unconditional: 40, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 23, negative conditional: 22, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 112, negative conditional: 76, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 695, positive: 610, positive conditional: 0, positive unconditional: 610, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 41, unknown conditional: 0, unknown unconditional: 41] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 44, Positive conditional cache size: 4, Positive unconditional cache size: 40, Negative cache size: 23, Negative conditional cache size: 22, Negative unconditional cache size: 1, SemanticConditionEliminator.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 23, negative conditional: 22, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 112, negative conditional: 76, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 207, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 163, negative conditional: 132, negative unconditional: 31, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 44, Positive conditional cache size: 4, Positive unconditional cache size: 40, Negative cache size: 23, Negative conditional cache size: 22, Negative unconditional cache size: 1, Eliminated conditions: 31, SemanticConditionEliminator.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 23, negative conditional: 22, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 112, negative conditional: 76, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 207, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 163, negative conditional: 132, negative unconditional: 31, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 44, Positive conditional cache size: 4, Positive unconditional cache size: 40, Negative cache size: 23, Negative conditional cache size: 22, Negative unconditional cache size: 1, Eliminated conditions: 31, SemanticConditionEliminator.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 23, negative conditional: 22, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 112, negative conditional: 76, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 207, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 163, negative conditional: 132, negative unconditional: 31, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 44, Positive conditional cache size: 4, Positive unconditional cache size: 40, Negative cache size: 23, Negative conditional cache size: 22, Negative unconditional cache size: 1, Eliminated conditions: 31, SemanticConditionEliminator.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 23, negative conditional: 22, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 112, negative conditional: 76, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 207, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 163, negative conditional: 132, negative unconditional: 31, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 44, Positive conditional cache size: 4, Positive unconditional cache size: 40, Negative cache size: 23, Negative conditional cache size: 22, Negative unconditional cache size: 1, Eliminated conditions: 31, SemanticConditionEliminator.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 23, negative conditional: 22, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 112, negative conditional: 76, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 207, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 163, negative conditional: 132, negative unconditional: 31, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 44, Positive conditional cache size: 4, Positive unconditional cache size: 40, Negative cache size: 23, Negative conditional cache size: 22, Negative unconditional cache size: 1, Eliminated conditions: 31, SemanticConditionEliminator.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 23, negative conditional: 22, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 112, negative conditional: 76, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 207, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 163, negative conditional: 132, negative unconditional: 31, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 44, Positive conditional cache size: 4, Positive unconditional cache size: 40, Negative cache size: 23, Negative conditional cache size: 22, Negative unconditional cache size: 1, Eliminated conditions: 31, SemanticConditionEliminator.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 207, positive: 22, positive conditional: 22, positive unconditional: 0, negative: 185, negative conditional: 154, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 27, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 23, negative conditional: 22, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 118, positive: 7, positive conditional: 7, positive unconditional: 0, negative: 112, negative conditional: 76, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 207, positive: 18, positive conditional: 18, positive unconditional: 0, negative: 163, negative conditional: 132, negative unconditional: 31, unknown: 26, unknown conditional: 26, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 67, Positive cache size: 44, Positive conditional cache size: 4, Positive unconditional cache size: 40, Negative cache size: 23, Negative conditional cache size: 22, Negative unconditional cache size: 1, Eliminated conditions: 31 ], Maximal queried relation: 7, Independence queries for same thread: 183 - PositiveResult [Line: 50]: 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, 32 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8261.2ms, OverallIterations: 7, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.0ms, PartialOrderReductionTime: 3737.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 153, 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: 29.2ms SsaConstructionTime, 144.7ms SatisfiabilityAnalysisTime, 2783.0ms InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 4167 SizeOfPredicates, 27 NumberOfNonLiveVariables, 323 ConjunctsInSsa, 160 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 13/183 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...