/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-13 23:09:57,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-13 23:09:57,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-13 23:09:57,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-13 23:09:57,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-13 23:09:57,999 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-13 23:09:58,000 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-13 23:09:58,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-13 23:09:58,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-13 23:09:58,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-13 23:09:58,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-13 23:09:58,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-13 23:09:58,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-13 23:09:58,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-13 23:09:58,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-13 23:09:58,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-13 23:09:58,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-13 23:09:58,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Lockstep.epf [2021-06-13 23:09:58,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-13 23:09:58,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-13 23:09:58,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-13 23:09:58,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-13 23:09:58,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-13 23:09:58,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-13 23:09:58,096 INFO L138 SettingsManager]: * Use SBE=true [2021-06-13 23:09:58,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-13 23:09:58,096 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-13 23:09:58,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-13 23:09:58,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-13 23:09:58,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-13 23:09:58,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-13 23:09:58,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-13 23:09:58,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-13 23:09:58,098 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-13 23:09:58,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-13 23:09:58,098 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-13 23:09:58,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-13 23:09:58,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-13 23:09:58,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-13 23:09:58,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-13 23:09:58,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-13 23:09:58,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-13 23:09:58,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-13 23:09:58,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-13 23:09:58,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-13 23:09:58,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-13 23:09:58,104 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-13 23:09:58,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-13 23:09:58,104 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-13 23:09:58,104 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-13 23:09:58,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-13 23:09:58,105 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-13 23:09:58,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-13 23:09:58,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-13 23:09:58,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-13 23:09:58,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-13 23:09:58,439 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-13 23:09:58,440 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-13 23:09:58,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl [2021-06-13 23:09:58,441 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl' [2021-06-13 23:09:58,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-13 23:09:58,471 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-13 23:09:58,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-13 23:09:58,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-13 23:09:58,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-13 23:09:58,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:09:58" (1/1) ... [2021-06-13 23:09:58,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:09:58" (1/1) ... [2021-06-13 23:09:58,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-13 23:09:58,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-13 23:09:58,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-13 23:09:58,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-13 23:09:58,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:09:58" (1/1) ... [2021-06-13 23:09:58,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:09:58" (1/1) ... [2021-06-13 23:09:58,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:09:58" (1/1) ... [2021-06-13 23:09:58,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:09:58" (1/1) ... [2021-06-13 23:09:58,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:09:58" (1/1) ... [2021-06-13 23:09:58,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:09:58" (1/1) ... [2021-06-13 23:09:58,510 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:09:58" (1/1) ... [2021-06-13 23:09:58,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-13 23:09:58,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-13 23:09:58,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-13 23:09:58,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-13 23:09:58,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:09:58" (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 [2021-06-13 23:09:58,569 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-13 23:09:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-13 23:09:58,570 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-13 23:09:58,570 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-13 23:09:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-13 23:09:58,570 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-13 23:09:58,570 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-13 23:09:58,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-13 23:09:58,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-13 23:09:58,571 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-13 23:09:58,735 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-13 23:09:58,735 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-13 23:09:58,737 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 11:09:58 BoogieIcfgContainer [2021-06-13 23:09:58,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-13 23:09:58,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-13 23:09:58,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-13 23:09:58,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-13 23:09:58,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.06 11:09:58" (1/2) ... [2021-06-13 23:09:58,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@713f2b9d and model type two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.06 11:09:58, skipping insertion in model container [2021-06-13 23:09:58,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.06 11:09:58" (2/2) ... [2021-06-13 23:09:58,761 INFO L111 eAbstractionObserver]: Analyzing ICFG two-queue.wvr.bpl [2021-06-13 23:09:58,765 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-13 23:09:58,766 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-13 23:09:58,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-13 23:09:58,766 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-13 23:09:58,816 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-13 23:09:58,846 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 [2021-06-13 23:09:58,912 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-13 23:09:58,912 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-13 23:09:58,912 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-13 23:09:58,912 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-13 23:09:58,912 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-13 23:09:58,913 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-13 23:09:58,913 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-13 23:09:58,913 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-13 23:09:59,011 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:09:59,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:09:59,018 INFO L82 PathProgramCache]: Analyzing trace with hash -2035406891, now seen corresponding path program 1 times [2021-06-13 23:09:59,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:09:59,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339771854] [2021-06-13 23:09:59,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:09:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:09:59,191 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-13 23:09:59,191 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:09:59,192 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339771854] [2021-06-13 23:09:59,193 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339771854] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 23:09:59,193 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-13 23:09:59,193 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-13 23:09:59,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817929175] [2021-06-13 23:09:59,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-13 23:09:59,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:09:59,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-13 23:09:59,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-13 23:09:59,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:09:59,219 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:09:59,222 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 2 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-13 23:09:59,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:09:59,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:09:59,278 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-13 23:09:59,278 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:09:59,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:09:59,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1388506523, now seen corresponding path program 2 times [2021-06-13 23:09:59,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:09:59,281 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659490404] [2021-06-13 23:09:59,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:09:59,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:09:59,365 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:09:59,366 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:09:59,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659490404] [2021-06-13 23:09:59,366 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659490404] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:09:59,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3517142] [2021-06-13 23:09:59,366 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 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 [2021-06-13 23:09:59,407 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-13 23:09:59,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:09:59,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-13 23:09:59,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:09:59,526 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-13 23:09:59,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3517142] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-13 23:09:59,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-13 23:09:59,527 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2021-06-13 23:09:59,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438330948] [2021-06-13 23:09:59,529 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-13 23:09:59,529 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:09:59,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-13 23:09:59,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-06-13 23:09:59,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:09:59,531 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:09:59,531 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-06-13 23:09:59,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:09:59,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:09:59,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:09:59,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:09:59,781 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:09:59,782 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:09:59,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:09:59,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1206568434, now seen corresponding path program 3 times [2021-06-13 23:09:59,783 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:09:59,783 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958803315] [2021-06-13 23:09:59,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:09:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:09:59,867 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-13 23:09:59,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:09:59,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958803315] [2021-06-13 23:09:59,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958803315] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:09:59,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909280649] [2021-06-13 23:09:59,868 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 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 [2021-06-13 23:09:59,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-13 23:09:59,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:09:59,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-13 23:09:59,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:10:00,044 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 [2021-06-13 23:10:00,047 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:10:00,048 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:10:00,049 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:10:00,049 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:13, output treesize:5 [2021-06-13 23:10:00,070 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 [2021-06-13 23:10:00,071 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:10:00,073 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:10:00,076 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:10:00,076 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-13 23:10:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-13 23:10:00,171 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909280649] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:10:00,171 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:10:00,171 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 8] total 11 [2021-06-13 23:10:00,171 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078104793] [2021-06-13 23:10:00,172 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-13 23:10:00,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:10:00,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-13 23:10:00,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-06-13 23:10:00,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:10:00,173 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:10:00,173 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 11 states have internal predecessors, (41), 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) [2021-06-13 23:10:00,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:10:00,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:10:00,174 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:10:00,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:10:00,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:10:00,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-13 23:10:00,745 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:10:00,745 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:10:00,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:10:00,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1336117856, now seen corresponding path program 4 times [2021-06-13 23:10:00,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:10:00,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720388456] [2021-06-13 23:10:00,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:10:00,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:10:00,837 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 38 proven. 35 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-06-13 23:10:00,838 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:10:00,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720388456] [2021-06-13 23:10:00,838 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720388456] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:10:00,838 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775102157] [2021-06-13 23:10:00,838 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 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 [2021-06-13 23:10:00,902 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-13 23:10:00,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:10:00,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-13 23:10:00,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:10:00,997 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 38 proven. 22 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-06-13 23:10:00,998 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775102157] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:10:00,998 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:10:00,998 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 6 [2021-06-13 23:10:00,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253210716] [2021-06-13 23:10:00,999 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-13 23:10:00,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:10:00,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-13 23:10:01,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-13 23:10:01,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:10:01,000 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:10:01,000 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 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) [2021-06-13 23:10:01,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:10:01,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:10:01,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-13 23:10:01,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:10:01,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:10:01,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:10:01,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-13 23:10:01,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 23:10:01,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:10:01,257 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:10:01,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:10:01,257 INFO L82 PathProgramCache]: Analyzing trace with hash 2026125820, now seen corresponding path program 5 times [2021-06-13 23:10:01,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:10:01,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260578371] [2021-06-13 23:10:01,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:10:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:10:01,749 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 45 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-13 23:10:01,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:10:01,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260578371] [2021-06-13 23:10:01,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260578371] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:10:01,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898589275] [2021-06-13 23:10:01,750 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 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 [2021-06-13 23:10:01,797 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-13 23:10:01,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:10:01,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 38 conjunts are in the unsatisfiable core [2021-06-13 23:10:01,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:10:01,994 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 [2021-06-13 23:10:01,997 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:10:02,000 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:10:02,001 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:10:02,001 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2021-06-13 23:10:02,014 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 [2021-06-13 23:10:02,015 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:10:02,019 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:10:02,020 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:10:02,020 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:11 [2021-06-13 23:10:02,106 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 42 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-13 23:10:02,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898589275] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:10:02,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:10:02,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 21 [2021-06-13 23:10:02,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301080095] [2021-06-13 23:10:02,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-13 23:10:02,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:10:02,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-13 23:10:02,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=402, Unknown=0, NotChecked=0, Total=462 [2021-06-13 23:10:02,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:10:02,109 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:10:02,109 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.227272727272727) internal successors, (49), 21 states have internal predecessors, (49), 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) [2021-06-13 23:10:02,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:10:02,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:10:02,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-13 23:10:02,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 23:10:02,109 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:10:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:10:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:10:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-13 23:10:02,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 23:10:02,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-13 23:10:02,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:10:02,633 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-13 23:10:02,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-13 23:10:02,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1082983214, now seen corresponding path program 6 times [2021-06-13 23:10:02,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-13 23:10:02,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915467667] [2021-06-13 23:10:02,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-13 23:10:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-13 23:10:02,990 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-13 23:10:02,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-13 23:10:02,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915467667] [2021-06-13 23:10:02,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915467667] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:10:02,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1020150395] [2021-06-13 23:10:02,991 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 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 [2021-06-13 23:10:03,017 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-06-13 23:10:03,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-13 23:10:03,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-13 23:10:03,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-13 23:10:03,219 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 [2021-06-13 23:10:03,220 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:10:03,224 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:10:03,224 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:10:03,224 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2021-06-13 23:10:03,238 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 [2021-06-13 23:10:03,239 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-13 23:10:03,243 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-13 23:10:03,244 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-13 23:10:03,244 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:11 [2021-06-13 23:10:03,321 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-13 23:10:03,321 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1020150395] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-13 23:10:03,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-13 23:10:03,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 23 [2021-06-13 23:10:03,322 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386544121] [2021-06-13 23:10:03,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-06-13 23:10:03,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-13 23:10:03,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-06-13 23:10:03,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2021-06-13 23:10:03,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:10:03,323 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-13 23:10:03,323 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.8333333333333333) internal successors, (44), 23 states have internal predecessors, (44), 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) [2021-06-13 23:10:03,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:10:03,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:10:03,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-13 23:10:03,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-13 23:10:03,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-13 23:10:03,324 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-13 23:10:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-13 23:10:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-13 23:10:04,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-13 23:10:04,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-13 23:10:04,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-13 23:10:04,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-06-13 23:10:04,392 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-13 23:10:04,398 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-13 23:10:04,399 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.06 11:10:04 BasicIcfg [2021-06-13 23:10:04,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-13 23:10:04,400 INFO L168 Benchmark]: Toolchain (without parser) took 5929.06 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 182.0 MB in the beginning and 163.9 MB in the end (delta: 18.1 MB). Peak memory consumption was 64.3 MB. Max. memory is 8.0 GB. [2021-06-13 23:10:04,400 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 202.4 MB. Free memory is still 183.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-13 23:10:04,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.32 ms. Allocated memory is still 202.4 MB. Free memory was 181.9 MB in the beginning and 180.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 23:10:04,400 INFO L168 Benchmark]: Boogie Preprocessor took 12.64 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 179.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-13 23:10:04,401 INFO L168 Benchmark]: RCFGBuilder took 233.44 ms. Allocated memory is still 202.4 MB. Free memory was 179.4 MB in the beginning and 166.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-06-13 23:10:04,401 INFO L168 Benchmark]: TraceAbstraction took 5642.99 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 165.5 MB in the beginning and 163.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 47.5 MB. Max. memory is 8.0 GB. [2021-06-13 23:10:04,401 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 202.4 MB. Free memory is still 183.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.32 ms. Allocated memory is still 202.4 MB. Free memory was 181.9 MB in the beginning and 180.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.64 ms. Allocated memory is still 202.4 MB. Free memory was 180.5 MB in the beginning and 179.4 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 233.44 ms. Allocated memory is still 202.4 MB. Free memory was 179.4 MB in the beginning and 166.0 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 5642.99 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 165.5 MB in the beginning and 163.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 47.5 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: 542, positive: 425, positive conditional: 425, positive unconditional: 0, negative: 117, negative conditional: 117, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 436, positive: 425, positive conditional: 425, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 436, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 80, positive: 78, positive conditional: 0, positive unconditional: 78, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 80, positive: 76, positive conditional: 0, positive unconditional: 76, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 22, positive conditional: 6, positive unconditional: 16, negative: 88, negative conditional: 33, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 436, positive: 342, positive conditional: 0, positive unconditional: 342, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 80, unknown conditional: 0, unknown unconditional: 80] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 82, Positive conditional cache size: 4, Positive unconditional cache size: 78, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, SemanticConditionEliminator.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 22, positive conditional: 6, positive unconditional: 16, negative: 88, negative conditional: 33, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 60, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 44, negative conditional: 28, negative unconditional: 16, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 82, Positive conditional cache size: 4, Positive unconditional cache size: 78, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 16, SemanticConditionEliminator.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 22, positive conditional: 6, positive unconditional: 16, negative: 88, negative conditional: 33, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 60, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 44, negative conditional: 28, negative unconditional: 16, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 82, Positive conditional cache size: 4, Positive unconditional cache size: 78, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 16, SemanticConditionEliminator.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 22, positive conditional: 6, positive unconditional: 16, negative: 88, negative conditional: 33, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 60, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 44, negative conditional: 28, negative unconditional: 16, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 82, Positive conditional cache size: 4, Positive unconditional cache size: 78, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 16, SemanticConditionEliminator.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 22, positive conditional: 6, positive unconditional: 16, negative: 88, negative conditional: 33, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 60, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 44, negative conditional: 28, negative unconditional: 16, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 82, Positive conditional cache size: 4, Positive unconditional cache size: 78, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 16, SemanticConditionEliminator.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 22, positive conditional: 6, positive unconditional: 16, negative: 88, negative conditional: 33, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 60, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 44, negative conditional: 28, negative unconditional: 16, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 82, Positive conditional cache size: 4, Positive unconditional cache size: 78, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 16, SemanticConditionEliminator.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 60, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 55, negative conditional: 39, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 6, positive conditional: 4, positive unconditional: 2, negative: 13, negative conditional: 11, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 110, positive: 22, positive conditional: 6, positive unconditional: 16, negative: 88, negative conditional: 33, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 60, positive: 1, positive conditional: 1, positive unconditional: 0, negative: 44, negative conditional: 28, negative unconditional: 16, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 95, Positive cache size: 82, Positive conditional cache size: 4, Positive unconditional cache size: 78, Negative cache size: 13, Negative conditional cache size: 11, Negative unconditional cache size: 2, Eliminated conditions: 16 ], Maximal queried relation: 6, Independence queries for same thread: 106 - 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, 36 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5518.9ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.3ms, PartialOrderReductionTime: 1722.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 79, 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: 50.0ms SsaConstructionTime, 229.9ms SatisfiabilityAnalysisTime, 2115.7ms InterpolantComputationTime, 365 NumberOfCodeBlocks, 360 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 354 ConstructedInterpolants, 0 QuantifiedInterpolants, 2193 SizeOfPredicates, 20 NumberOfNonLiveVariables, 474 ConjunctsInSsa, 89 ConjunctsInUnsatCore, 11 InterpolantComputations, 2 PerfectInterpolantSequences, 208/377 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...