/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-b7a4f01caba76767183cf06280be652b0b124764-b7a4f01 [2021-06-07 16:15:16,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 16:15:16,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 16:15:16,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 16:15:16,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-07 16:15:16,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-07 16:15:16,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-07 16:15:16,082 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-07 16:15:16,083 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-07 16:15:16,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-07 16:15:16,084 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-07 16:15:16,086 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-07 16:15:16,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-07 16:15:16,096 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-07 16:15:16,097 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-07 16:15:16,097 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-07 16:15:16,099 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-07 16:15:16,106 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-Lockstep.epf [2021-06-07 16:15:16,120 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 16:15:16,120 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 16:15:16,121 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 16:15:16,121 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 16:15:16,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 16:15:16,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 16:15:16,122 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 16:15:16,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 16:15:16,122 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 16:15:16,122 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 16:15:16,122 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 16:15:16,122 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 16:15:16,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 16:15:16,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 16:15:16,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 16:15:16,123 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 16:15:16,123 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 16:15:16,123 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 16:15:16,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 16:15:16,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 16:15:16,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 16:15:16,123 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 16:15:16,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 16:15:16,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 16:15:16,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 16:15:16,123 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 16:15:16,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 16:15:16,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 16:15:16,124 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-07 16:15:16,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 16:15:16,124 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 16:15:16,124 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 16:15:16,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 16:15:16,124 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 16:15:16,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 16:15:16,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 16:15:16,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 16:15:16,355 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 16:15:16,356 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 16:15:16,360 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 16:15:16,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl [2021-06-07 16:15:16,361 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl' [2021-06-07 16:15:16,389 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 16:15:16,390 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 16:15:16,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 16:15:16,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 16:15:16,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 16:15:16,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:15:16" (1/1) ... [2021-06-07 16:15:16,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:15:16" (1/1) ... [2021-06-07 16:15:16,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 16:15:16,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 16:15:16,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 16:15:16,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 16:15:16,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:15:16" (1/1) ... [2021-06-07 16:15:16,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:15:16" (1/1) ... [2021-06-07 16:15:16,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:15:16" (1/1) ... [2021-06-07 16:15:16,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:15:16" (1/1) ... [2021-06-07 16:15:16,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:15:16" (1/1) ... [2021-06-07 16:15:16,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:15:16" (1/1) ... [2021-06-07 16:15:16,432 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:15:16" (1/1) ... [2021-06-07 16:15:16,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 16:15:16,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 16:15:16,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 16:15:16,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 16:15:16,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:15:16" (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 [2021-06-07 16:15:16,494 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 16:15:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 16:15:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 16:15:16,494 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 16:15:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 16:15:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 16:15:16,494 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 16:15:16,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 16:15:16,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 16:15:16,495 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 16:15:16,648 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 16:15:16,648 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-07 16:15:16,649 INFO L202 PluginConnector]: Adding new model counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:15:16 BoogieIcfgContainer [2021-06-07 16:15:16,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 16:15:16,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 16:15:16,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 16:15:16,652 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 16:15:16,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 04:15:16" (1/2) ... [2021-06-07 16:15:16,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe9d74f and model type counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 04:15:16, skipping insertion in model container [2021-06-07 16:15:16,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 04:15:16" (2/2) ... [2021-06-07 16:15:16,654 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-queue.wvr.bpl [2021-06-07 16:15:16,657 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 16:15:16,657 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 16:15:16,658 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 16:15:16,658 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 16:15:16,702 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-07 16:15:16,716 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 [2021-06-07 16:15:16,750 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 16:15:16,751 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 16:15:16,751 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 16:15:16,751 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 16:15:16,751 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 16:15:16,751 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 16:15:16,751 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 16:15:16,751 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 16:15:16,820 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:15:16,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:15:16,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1635099045, now seen corresponding path program 1 times [2021-06-07 16:15:16,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:15:16,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945482613] [2021-06-07 16:15:16,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:15:16,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:16,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:16,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:15:16,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945482613] [2021-06-07 16:15:16,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945482613] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 16:15:16,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 16:15:16,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-07 16:15:16,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429120277] [2021-06-07 16:15:16,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 16:15:16,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:15:16,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 16:15:16,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 16:15:16,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:16,937 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:15:16,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-06-07 16:15:16,939 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:16,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:16,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 16:15:16,984 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:15:16,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:15:16,984 INFO L82 PathProgramCache]: Analyzing trace with hash 2119693475, now seen corresponding path program 1 times [2021-06-07 16:15:16,985 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:15:16,985 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813367738] [2021-06-07 16:15:16,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:15:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:17,070 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:15:17,070 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813367738] [2021-06-07 16:15:17,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813367738] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:17,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648401340] [2021-06-07 16:15:17,071 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 [2021-06-07 16:15:17,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:17,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-07 16:15:17,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:15:17,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:17,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648401340] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:17,275 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:15:17,275 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-06-07 16:15:17,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871169921] [2021-06-07 16:15:17,277 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-07 16:15:17,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:15:17,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-07 16:15:17,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-07 16:15:17,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:17,278 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:15:17,278 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 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) [2021-06-07 16:15:17,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:17,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:17,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:17,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:17,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:17,561 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:15:17,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:15:17,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1624375643, now seen corresponding path program 1 times [2021-06-07 16:15:17,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:15:17,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882693181] [2021-06-07 16:15:17,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:15:17,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:17,642 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:17,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:15:17,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882693181] [2021-06-07 16:15:17,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882693181] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:17,643 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1827033138] [2021-06-07 16:15:17,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-07 16:15:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:17,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-07 16:15:17,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:15:17,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:17,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-06-07 16:15:17,892 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 16:15:17,897 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 16:15:17,900 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 16:15:17,900 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2021-06-07 16:15:17,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:17,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1827033138] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:17,921 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:15:17,921 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-07 16:15:17,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955201930] [2021-06-07 16:15:17,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-07 16:15:17,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:15:17,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-07 16:15:17,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-07 16:15:17,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:17,923 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:15:17,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.111111111111111) internal successors, (28), 8 states have internal predecessors, (28), 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) [2021-06-07 16:15:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:17,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:17,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:17,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:17,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:18,172 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:18,173 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:15:18,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:15:18,173 INFO L82 PathProgramCache]: Analyzing trace with hash 210936483, now seen corresponding path program 2 times [2021-06-07 16:15:18,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:15:18,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576199084] [2021-06-07 16:15:18,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:15:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:18,235 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:18,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:15:18,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576199084] [2021-06-07 16:15:18,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576199084] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:18,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43912071] [2021-06-07 16:15:18,235 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 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 [2021-06-07 16:15:18,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 16:15:18,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 16:15:18,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-07 16:15:18,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:15:18,368 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:18,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [43912071] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:18,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:15:18,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-06-07 16:15:18,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891710929] [2021-06-07 16:15:18,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-07 16:15:18,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:15:18,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-07 16:15:18,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-06-07 16:15:18,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:18,370 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:15:18,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 16:15:18,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:18,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:18,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:18,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:18,732 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:18,733 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:15:18,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:15:18,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1988809563, now seen corresponding path program 3 times [2021-06-07 16:15:18,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:15:18,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156549570] [2021-06-07 16:15:18,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:15:18,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:18,868 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:18,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:15:18,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156549570] [2021-06-07 16:15:18,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156549570] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:18,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146535266] [2021-06-07 16:15:18,868 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 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 [2021-06-07 16:15:18,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-07 16:15:18,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 16:15:18,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-07 16:15:18,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:15:19,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:19,140 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:19,149 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 16:15:19,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 29 [2021-06-07 16:15:19,193 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-07 16:15:19,207 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 16:15:19,248 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-07 16:15:19,248 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:27 [2021-06-07 16:15:19,300 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:19,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146535266] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:19,300 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:15:19,300 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 15 [2021-06-07 16:15:19,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135116493] [2021-06-07 16:15:19,300 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-07 16:15:19,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:15:19,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-07 16:15:19,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-06-07 16:15:19,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:19,301 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:15:19,301 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.3125) internal successors, (37), 15 states have internal predecessors, (37), 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) [2021-06-07 16:15:19,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:19,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:19,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:19,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:19,302 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:19,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:19,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:19,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:19,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:19,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:19,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:19,673 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:15:19,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:15:19,673 INFO L82 PathProgramCache]: Analyzing trace with hash -1839673567, now seen corresponding path program 4 times [2021-06-07 16:15:19,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:15:19,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12693334] [2021-06-07 16:15:19,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:15:19,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:19,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:15:19,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12693334] [2021-06-07 16:15:19,775 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12693334] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:19,775 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202899700] [2021-06-07 16:15:19,775 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 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 [2021-06-07 16:15:19,815 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 16:15:19,816 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 16:15:19,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-07 16:15:19,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:15:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:20,088 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202899700] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:20,088 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:15:20,088 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2021-06-07 16:15:20,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457984496] [2021-06-07 16:15:20,089 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-07 16:15:20,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:15:20,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-07 16:15:20,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2021-06-07 16:15:20,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:20,089 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:15:20,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.25) internal successors, (45), 19 states have internal predecessors, (45), 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) [2021-06-07 16:15:20,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:20,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:20,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:20,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:20,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:20,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:20,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:20,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:20,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:20,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:20,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:20,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 16:15:20,548 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:20,549 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:15:20,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:15:20,549 INFO L82 PathProgramCache]: Analyzing trace with hash -40043611, now seen corresponding path program 5 times [2021-06-07 16:15:20,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:15:20,549 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080004984] [2021-06-07 16:15:20,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:15:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:20,968 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:20,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:15:20,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080004984] [2021-06-07 16:15:20,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080004984] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:20,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495261267] [2021-06-07 16:15:20,969 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 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 [2021-06-07 16:15:21,010 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-07 16:15:21,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 16:15:21,011 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-07 16:15:21,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:15:21,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:21,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:21,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:21,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:21,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:21,326 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:21,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:21,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:21,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:21,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:21,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:21,329 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:21,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:21,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 7 [2021-06-07 16:15:21,331 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 16:15:21,336 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 16:15:21,338 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 16:15:21,338 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:75, output treesize:7 [2021-06-07 16:15:21,358 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:21,358 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495261267] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:21,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:15:21,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 24 [2021-06-07 16:15:21,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945135972] [2021-06-07 16:15:21,359 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-07 16:15:21,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:15:21,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-07 16:15:21,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2021-06-07 16:15:21,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:21,360 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:15:21,360 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.12) internal successors, (53), 24 states have internal predecessors, (53), 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) [2021-06-07 16:15:21,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:21,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:21,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:21,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:21,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:21,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 16:15:21,360 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 16:15:22,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-07 16:15:22,462 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:22,462 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:15:22,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:15:22,463 INFO L82 PathProgramCache]: Analyzing trace with hash 1812733093, now seen corresponding path program 6 times [2021-06-07 16:15:22,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:15:22,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68113361] [2021-06-07 16:15:22,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:15:22,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:22,979 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:22,979 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:15:22,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68113361] [2021-06-07 16:15:22,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68113361] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:22,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497114606] [2021-06-07 16:15:22,980 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:23,013 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-07 16:15:23,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 16:15:23,014 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-07 16:15:23,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:15:24,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:24,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:24,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:24,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:24,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:24,193 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:24,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:24,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:24,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:24,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:24,197 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:24,199 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:24,233 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 16:15:24,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 81 treesize of output 95 [2021-06-07 16:15:24,290 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-07 16:15:24,357 INFO L628 ElimStorePlain]: treesize reduction 280, result has 11.1 percent of original size [2021-06-07 16:15:24,363 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-07 16:15:24,364 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:103, output treesize:22 [2021-06-07 16:15:24,427 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:24,427 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497114606] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:24,427 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:15:24,427 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 33 [2021-06-07 16:15:24,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877646133] [2021-06-07 16:15:24,428 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-07 16:15:24,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:15:24,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-07 16:15:24,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2021-06-07 16:15:24,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:24,431 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:15:24,431 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 1.7941176470588236) internal successors, (61), 33 states have internal predecessors, (61), 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) [2021-06-07 16:15:24,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:24,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:24,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:24,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:24,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:24,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 16:15:24,432 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-07 16:15:24,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:25,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 16:15:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-07 16:15:25,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 16:15:26,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-07 16:15:26,077 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:15:26,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:15:26,078 INFO L82 PathProgramCache]: Analyzing trace with hash -668528987, now seen corresponding path program 7 times [2021-06-07 16:15:26,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:15:26,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118791602] [2021-06-07 16:15:26,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:15:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:26,604 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:26,604 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:15:26,604 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118791602] [2021-06-07 16:15:26,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118791602] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:26,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601854439] [2021-06-07 16:15:26,605 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:26,636 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 51 conjunts are in the unsatisfiable core [2021-06-07 16:15:26,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:15:27,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,229 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:27,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,235 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:27,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,238 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:27,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,242 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:27,242 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:27,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:27,244 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:27,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 101 treesize of output 7 [2021-06-07 16:15:27,246 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 16:15:27,250 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 16:15:27,252 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 16:15:27,252 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:107, output treesize:7 [2021-06-07 16:15:27,274 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:27,274 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601854439] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:27,274 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:15:27,274 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 32 [2021-06-07 16:15:27,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419681053] [2021-06-07 16:15:27,275 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-07 16:15:27,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:15:27,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-07 16:15:27,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2021-06-07 16:15:27,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:27,276 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:15:27,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.090909090909091) internal successors, (69), 32 states have internal predecessors, (69), 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) [2021-06-07 16:15:27,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:27,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:27,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:27,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:27,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:27,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 16:15:27,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-07 16:15:27,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 16:15:27,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 16:15:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-07 16:15:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 16:15:28,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 16:15:28,955 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:28,956 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:15:28,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:15:28,956 INFO L82 PathProgramCache]: Analyzing trace with hash 2110591397, now seen corresponding path program 8 times [2021-06-07 16:15:28,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:15:28,956 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405202729] [2021-06-07 16:15:28,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:15:28,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:29,490 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:29,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:15:29,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405202729] [2021-06-07 16:15:29,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405202729] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:29,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1613795797] [2021-06-07 16:15:29,491 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:29,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 16:15:29,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 16:15:29,540 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 59 conjunts are in the unsatisfiable core [2021-06-07 16:15:29,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:15:30,320 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:30,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,327 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:30,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,333 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:30,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,338 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:30,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,340 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:30,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:30,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:30,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:30,344 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 21 disjoint index pairs (out of 91 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 117 treesize of output 7 [2021-06-07 16:15:30,345 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 16:15:30,350 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 16:15:30,351 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 16:15:30,351 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:7 [2021-06-07 16:15:30,373 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:30,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1613795797] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:30,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 16:15:30,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 36 [2021-06-07 16:15:30,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485188988] [2021-06-07 16:15:30,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-06-07 16:15:30,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 16:15:30,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-06-07 16:15:30,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1192, Unknown=0, NotChecked=0, Total=1332 [2021-06-07 16:15:30,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:30,375 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 16:15:30,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.081081081081081) internal successors, (77), 36 states have internal predecessors, (77), 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) [2021-06-07 16:15:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 16:15:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-07 16:15:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 16:15:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 16:15:30,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 16:15:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 16:15:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-07 16:15:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-07 16:15:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:32,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 16:15:32,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 16:15:32,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-07 16:15:32,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 16:15:32,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 16:15:32,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-07 16:15:32,458 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:32,459 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 16:15:32,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 16:15:32,459 INFO L82 PathProgramCache]: Analyzing trace with hash -900897371, now seen corresponding path program 9 times [2021-06-07 16:15:32,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 16:15:32,459 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839895622] [2021-06-07 16:15:32,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 16:15:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 16:15:33,156 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 25 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 16:15:33,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 16:15:33,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839895622] [2021-06-07 16:15:33,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839895622] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 16:15:33,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950773820] [2021-06-07 16:15:33,157 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 16:15:33,204 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-06-07 16:15:33,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 16:15:33,205 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 71 conjunts are in the unsatisfiable core [2021-06-07 16:15:33,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 16:15:37,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:37,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,270 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:37,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,288 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:37,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,305 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 16:15:37,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 16:15:37,664 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-06-07 16:15:37,665 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 16:15:37,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 24 disjoint index pairs (out of 120 index pairs), introduced 12 new quantified variables, introduced 74 case distinctions, treesize of input 141 treesize of output 487 [2021-06-07 16:15:38,518 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 242 [2021-06-07 16:15:38,843 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 262 [2021-06-07 16:15:39,105 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 308 [2021-06-07 16:15:39,605 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 221 [2021-06-07 16:15:39,913 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 271 [2021-06-07 16:15:40,467 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 221 [2021-06-07 16:15:40,647 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 242 [2021-06-07 16:15:41,310 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2021-06-07 16:15:41,711 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 276 [2021-06-07 16:15:42,480 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 342 [2021-06-07 16:15:43,287 WARN L205 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 412 [2021-06-07 16:15:44,539 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 503 DAG size of output: 520 [2021-06-07 16:15:46,413 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 641 DAG size of output: 665 [2021-06-07 16:15:48,615 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 673 DAG size of output: 697 [2021-06-07 16:15:49,216 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 263 [2021-06-07 16:15:49,375 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 298 [2021-06-07 16:15:49,601 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 333 [2021-06-07 16:15:49,893 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 370 [2021-06-07 16:15:50,487 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 334 [2021-06-07 16:15:51,078 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 477 [2021-06-07 16:15:51,978 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 307 [2021-06-07 16:15:52,614 WARN L205 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 634 [2021-06-07 16:15:53,433 WARN L205 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 678 [2021-06-07 16:15:54,854 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 823 DAG size of output: 833 [2021-06-07 16:15:55,584 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 207 [2021-06-07 16:15:55,728 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 222 [2021-06-07 16:15:56,091 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 270 [2021-06-07 16:15:56,471 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 347 [2021-06-07 16:15:57,301 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 411 [2021-06-07 16:15:59,779 WARN L205 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 1066 DAG size of output: 1073 [2021-06-07 16:16:05,336 WARN L205 SmtUtils]: Spent 5.55 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-06-07 16:16:10,899 WARN L205 SmtUtils]: Spent 5.56 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-06-07 16:16:16,596 WARN L205 SmtUtils]: Spent 5.68 s on a formula simplification. DAG size of input: 1502 DAG size of output: 1530 [2021-06-07 16:16:19,164 WARN L205 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 741 DAG size of output: 950 [2021-06-07 16:16:21,963 WARN L205 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 736 DAG size of output: 1124 [2021-06-07 16:16:23,848 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 692 DAG size of output: 835 [2021-06-07 16:16:24,564 WARN L205 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 695 [2021-06-07 16:16:26,401 WARN L205 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 617 DAG size of output: 791 [2021-06-07 16:16:26,970 WARN L205 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 581 DAG size of output: 595 [2021-06-07 16:16:28,030 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 578 DAG size of output: 808 [2021-06-07 16:16:28,681 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 446 [2021-06-07 16:16:29,426 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 558 [2021-06-07 16:16:29,591 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 222 [2021-06-07 16:16:29,976 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 315 [2021-06-07 16:16:31,195 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 412 [2021-06-07 16:16:34,738 WARN L205 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 1917 DAG size of output: 1769 [2021-06-07 16:16:40,045 WARN L205 SmtUtils]: Spent 5.30 s on a formula simplification. DAG size of input: 2194 DAG size of output: 2044 [2021-06-07 16:16:47,494 WARN L205 SmtUtils]: Spent 7.44 s on a formula simplification. DAG size of input: 2459 DAG size of output: 2323 [2021-06-07 16:16:48,069 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 587 [2021-06-07 16:16:48,277 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 536 DAG size of output: 541 [2021-06-07 16:16:48,780 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 446 [2021-06-07 16:16:48,968 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 223 [2021-06-07 16:16:49,334 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 257 [2021-06-07 16:16:49,554 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 351 [2021-06-07 16:16:50,182 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 387 [2021-06-07 16:16:50,836 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 557 DAG size of output: 531 [2021-06-07 16:16:51,490 WARN L205 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 771 DAG size of output: 708 [2021-06-07 16:16:52,007 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-06-07 16:16:52,276 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 354 [2021-06-07 16:16:53,074 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 471 DAG size of output: 443 [2021-06-07 16:16:53,705 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 311 [2021-06-07 16:16:54,145 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 289 [2021-06-07 16:16:54,479 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 344 [2021-06-07 16:16:55,685 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 734 DAG size of output: 696 [2021-06-07 16:16:58,038 WARN L205 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1148 [2021-06-07 16:16:58,204 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 306 [2021-06-07 16:16:58,658 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 348 [2021-06-07 16:16:59,339 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 485 DAG size of output: 473 [2021-06-07 16:16:59,707 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 690 [2021-06-07 16:17:00,297 WARN L205 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 795 DAG size of output: 784 [2021-06-07 16:17:01,090 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 357 [2021-06-07 16:17:01,623 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 288 [2021-06-07 16:17:01,836 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 381 [2021-06-07 16:17:02,322 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 311 [2021-06-07 16:17:02,786 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 550 [2021-06-07 16:17:03,593 WARN L205 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 790 DAG size of output: 792 [2021-06-07 16:17:08,366 WARN L205 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 2269 DAG size of output: 2166 [2021-06-07 16:17:15,715 WARN L205 SmtUtils]: Spent 7.26 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2468 [2021-06-07 16:17:25,530 WARN L205 SmtUtils]: Spent 9.80 s on a formula simplification. DAG size of input: 2856 DAG size of output: 2716 [2021-06-07 16:17:45,387 WARN L205 SmtUtils]: Spent 19.84 s on a formula simplification. DAG size of input: 4301 DAG size of output: 4043 [2021-06-07 16:17:45,968 WARN L205 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 637 DAG size of output: 651 [2021-06-07 16:17:47,263 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 634 DAG size of output: 902 [2021-06-07 16:17:48,392 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 478 DAG size of output: 700 [2021-06-07 16:17:48,817 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 194 [2021-06-07 16:17:49,571 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 324 [2021-06-07 16:17:49,947 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 387 [2021-06-07 16:17:50,109 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 280 [2021-06-07 16:17:50,591 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 427 [2021-06-07 16:17:52,507 WARN L205 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 1172 DAG size of output: 1090 [2021-06-07 16:17:53,218 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 381 [2021-06-07 16:17:53,533 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 501 [2021-06-07 16:17:54,125 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 285 [2021-06-07 16:17:54,689 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 662 [2021-06-07 16:17:57,768 WARN L205 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 1655 DAG size of output: 1556 [2021-06-07 16:18:02,382 WARN L205 SmtUtils]: Spent 4.61 s on a formula simplification. DAG size of input: 1952 DAG size of output: 1867 [2021-06-07 16:18:08,991 WARN L205 SmtUtils]: Spent 6.60 s on a formula simplification. DAG size of input: 2252 DAG size of output: 2166 [2021-06-07 16:18:19,833 WARN L205 SmtUtils]: Spent 10.68 s on a formula simplification. DAG size of input: 3203 DAG size of output: 2955 [2021-06-07 16:18:55,469 WARN L205 SmtUtils]: Spent 35.62 s on a formula simplification. DAG size of input: 6325 DAG size of output: 5851 [2021-06-07 16:18:55,610 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2021-06-07 16:18:58,019 WARN L205 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 671 DAG size of output: 978 [2021-06-07 16:19:00,416 WARN L205 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 668 DAG size of output: 961 [2021-06-07 16:19:03,392 WARN L205 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 665 DAG size of output: 974 [2021-06-07 16:19:03,781 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 285 [2021-06-07 16:19:03,952 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 193 [2021-06-07 16:19:04,291 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 337 [2021-06-07 16:19:04,694 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 416 [2021-06-07 16:19:05,070 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 453 [2021-06-07 16:19:05,704 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 563 [2021-06-07 16:19:05,821 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 200 [2021-06-07 16:19:06,101 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 262 [2021-06-07 16:19:06,936 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 316 [2021-06-07 16:19:07,721 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 563 [2021-06-07 16:19:08,173 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 394 [2021-06-07 16:19:09,486 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 658 DAG size of output: 639 [2021-06-07 16:19:15,137 WARN L205 SmtUtils]: Spent 5.65 s on a formula simplification. DAG size of input: 2009 DAG size of output: 1914 [2021-06-07 16:19:23,926 WARN L205 SmtUtils]: Spent 8.78 s on a formula simplification. DAG size of input: 2013 DAG size of output: 1916 [2021-06-07 16:19:35,985 WARN L205 SmtUtils]: Spent 12.05 s on a formula simplification. DAG size of input: 2325 DAG size of output: 2231 [2021-06-07 16:19:55,701 WARN L205 SmtUtils]: Spent 19.50 s on a formula simplification. DAG size of input: 3594 DAG size of output: 3167 [2021-06-07 16:20:59,403 WARN L205 SmtUtils]: Spent 1.06 m on a formula simplification. DAG size of input: 9326 DAG size of output: 8368 [2021-06-07 16:22:14,492 WARN L205 SmtUtils]: Spent 1.25 m on a formula simplification. DAG size of input: 9585 DAG size of output: 8636 [2021-06-07 16:22:17,835 WARN L205 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 1088 DAG size of output: 1536 [2021-06-07 16:22:21,030 WARN L205 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 1085 DAG size of output: 1490 [2021-06-07 16:22:21,187 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2021-06-07 16:22:21,366 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 263 [2021-06-07 16:22:21,507 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 260 [2021-06-07 16:22:21,948 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 281 [2021-06-07 16:22:22,171 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 284 [2021-06-07 16:22:22,485 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 336 [2021-06-07 16:22:22,963 WARN L205 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 423 DAG size of output: 401 [2021-06-07 16:22:23,589 WARN L205 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 403 [2021-06-07 16:22:23,978 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 367 [2021-06-07 16:22:24,325 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 359 [2021-06-07 16:22:24,838 WARN L205 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 364 [2021-06-07 16:22:26,033 WARN L205 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 628 DAG size of output: 589 [2021-06-07 16:22:26,992 WARN L205 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 592 [2021-06-07 16:22:28,419 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 757 DAG size of output: 712 [2021-06-07 16:22:28,535 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 244 [2021-06-07 16:22:28,646 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 243 [2021-06-07 16:22:28,755 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 233 [2021-06-07 16:22:29,273 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 322 [2021-06-07 16:22:29,498 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 368 [2021-06-07 16:22:29,854 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 422 [2021-06-07 16:22:30,394 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 469 [2021-06-07 16:22:32,751 WARN L205 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 1092 DAG size of output: 1023 [2021-06-07 16:22:36,345 WARN L205 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 1294 DAG size of output: 1202 [2021-06-07 16:22:36,878 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 412 [2021-06-07 16:22:37,394 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 236 [2021-06-07 16:22:37,671 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 297 [2021-06-07 16:22:38,046 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 352 [2021-06-07 16:22:38,542 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 326 [2021-06-07 16:22:38,820 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-06-07 16:22:39,413 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 493 [2021-06-07 16:22:39,904 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 641 DAG size of output: 602 [2021-06-07 16:22:40,660 WARN L205 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 779 DAG size of output: 741 [2021-06-07 16:22:41,933 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 987 DAG size of output: 950 [2021-06-07 16:22:43,749 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 1124 DAG size of output: 1088 [2021-06-07 16:22:46,689 WARN L205 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 1499 DAG size of output: 1406 [2021-06-07 16:22:47,174 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 340 [2021-06-07 16:22:47,365 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 353 [2021-06-07 16:22:48,016 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 587 DAG size of output: 571 [2021-06-07 16:22:48,359 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 727 DAG size of output: 707 [2021-06-07 16:22:48,884 WARN L205 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 816 DAG size of output: 802 [2021-06-07 16:22:49,393 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 333 [2021-06-07 16:22:50,234 WARN L205 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 1003 [2021-06-07 16:22:50,488 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 366 [2021-06-07 16:22:50,618 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 322 [2021-06-07 16:22:50,739 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 306 [2021-06-07 16:22:51,207 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 609 DAG size of output: 586 [2021-06-07 16:22:51,574 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 693 DAG size of output: 674 [2021-06-07 16:22:52,185 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 818 DAG size of output: 794 [2021-06-07 16:22:52,340 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 312 [2021-06-07 16:22:52,988 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 555 DAG size of output: 532 [2021-06-07 16:22:53,411 WARN L205 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 676 [2021-06-07 16:22:53,742 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 305 [2021-06-07 16:22:54,408 WARN L205 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 845 DAG size of output: 815 [2021-06-07 16:22:54,887 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 301 [2021-06-07 16:22:55,185 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 318 [2021-06-07 16:22:55,548 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 499 [2021-06-07 16:22:55,793 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 664 DAG size of output: 632 [2021-06-07 16:22:55,988 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 335 [2021-06-07 16:22:56,092 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 297 [2021-06-07 16:22:57,050 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 517 [2021-06-07 16:22:57,373 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 639 [2021-06-07 16:22:57,858 WARN L205 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 804 DAG size of output: 760 [2021-06-07 16:22:58,584 WARN L205 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 917 DAG size of output: 878 [2021-06-07 16:22:59,672 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 1213 DAG size of output: 1168 [2021-06-07 16:23:02,077 WARN L205 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 1965 DAG size of output: 1905 [2021-06-07 16:23:06,903 WARN L205 SmtUtils]: Spent 4.82 s on a formula simplification. DAG size of input: 2878 DAG size of output: 2788 [2021-06-07 16:23:15,190 WARN L205 SmtUtils]: Spent 8.27 s on a formula simplification. DAG size of input: 4237 DAG size of output: 3592 [2021-06-07 16:23:28,500 WARN L205 SmtUtils]: Spent 13.29 s on a formula simplification. DAG size of input: 5311 DAG size of output: 4573 [2021-06-07 16:23:48,418 WARN L205 SmtUtils]: Spent 19.89 s on a formula simplification. DAG size of input: 6289 DAG size of output: 5463 [2021-06-07 16:24:14,332 WARN L205 SmtUtils]: Spent 25.88 s on a formula simplification. DAG size of input: 6859 DAG size of output: 6051 [2021-06-07 16:24:46,893 WARN L205 SmtUtils]: Spent 32.53 s on a formula simplification. DAG size of input: 6979 DAG size of output: 6178 [2021-06-07 16:26:50,302 WARN L205 SmtUtils]: Spent 2.06 m on a formula simplification. DAG size of input: 15531 DAG size of output: 13741 [2021-06-07 16:28:53,012 WARN L205 SmtUtils]: Spent 2.04 m on a formula simplification. DAG size of input: 15531 DAG size of output: 13741 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown