/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-16 21:16:57,365 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-16 21:16:57,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-16 21:16:57,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-16 21:16:57,421 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Symm.epf [2021-06-16 21:16:57,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-16 21:16:57,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-16 21:16:57,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-16 21:16:57,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-16 21:16:57,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-16 21:16:57,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-16 21:16:57,439 INFO L138 SettingsManager]: * Use SBE=true [2021-06-16 21:16:57,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-16 21:16:57,439 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-16 21:16:57,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-16 21:16:57,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-16 21:16:57,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-16 21:16:57,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-16 21:16:57,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-16 21:16:57,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-16 21:16:57,440 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-16 21:16:57,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-16 21:16:57,440 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-16 21:16:57,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-16 21:16:57,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-16 21:16:57,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-16 21:16:57,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-16 21:16:57,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-16 21:16:57,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-16 21:16:57,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-16 21:16:57,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-16 21:16:57,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-16 21:16:57,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-16 21:16:57,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-16 21:16:57,448 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-16 21:16:57,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-16 21:16:57,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-16 21:16:57,449 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-16 21:16:57,449 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-06-16 21:16:57,449 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-16 21:16:57,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-16 21:16:57,674 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-16 21:16:57,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-16 21:16:57,677 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-16 21:16:57,678 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-16 21:16:57,678 INFO L432 ainManager$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 [2021-06-16 21:16:57,678 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl' [2021-06-16 21:16:57,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-16 21:16:57,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-16 21:16:57,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-16 21:16:57,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-16 21:16:57,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-16 21:16:57,713 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 16.06 09:16:57" (1/1) ... [2021-06-16 21:16:57,719 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 16.06 09:16:57" (1/1) ... [2021-06-16 21:16:57,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-16 21:16:57,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-16 21:16:57,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-16 21:16:57,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-16 21:16:57,731 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:16:57" (1/1) ... [2021-06-16 21:16:57,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:16:57" (1/1) ... [2021-06-16 21:16:57,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:16:57" (1/1) ... [2021-06-16 21:16:57,732 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:16:57" (1/1) ... [2021-06-16 21:16:57,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:16:57" (1/1) ... [2021-06-16 21:16:57,737 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:16:57" (1/1) ... [2021-06-16 21:16:57,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:16:57" (1/1) ... [2021-06-16 21:16:57,738 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-16 21:16:57,739 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-16 21:16:57,739 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-16 21:16:57,739 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-16 21:16:57,740 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:16:57" (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 [2021-06-16 21:16:57,788 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-16 21:16:57,789 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-16 21:16:57,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-16 21:16:57,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-16 21:16:57,789 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-16 21:16:57,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-16 21:16:57,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-16 21:16:57,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-16 21:16:57,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-16 21:16:57,790 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-16 21:16:57,954 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-16 21:16:57,955 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-16 21:16:57,956 INFO L202 PluginConnector]: Adding new model counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:16:57 BoogieIcfgContainer [2021-06-16 21:16:57,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-16 21:16:57,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-16 21:16:57,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-16 21:16:57,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-16 21:16:57,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.06 09:16:57" (1/2) ... [2021-06-16 21:16:57,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd0a7b6 and model type counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.06 09:16:57, skipping insertion in model container [2021-06-16 21:16:57,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.06 09:16:57" (2/2) ... [2021-06-16 21:16:57,961 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-queue.wvr.bpl [2021-06-16 21:16:57,965 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-16 21:16:57,965 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-16 21:16:57,965 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-16 21:16:57,965 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-16 21:16:57,987 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-16 21:16:58,000 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 [2021-06-16 21:16:58,034 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-16 21:16:58,034 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-16 21:16:58,034 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-16 21:16:58,034 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-16 21:16:58,034 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-16 21:16:58,034 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-16 21:16:58,034 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-16 21:16:58,034 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-16 21:16:58,103 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:16:58,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:16:58,107 INFO L82 PathProgramCache]: Analyzing trace with hash 1635099045, now seen corresponding path program 1 times [2021-06-16 21:16:58,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:16:58,116 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266873822] [2021-06-16 21:16:58,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:16:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:16:58,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:16:58,239 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:16:58,240 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266873822] [2021-06-16 21:16:58,241 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266873822] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-16 21:16:58,241 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-16 21:16:58,241 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-16 21:16:58,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435257256] [2021-06-16 21:16:58,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-16 21:16:58,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:16:58,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-16 21:16:58,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-16 21:16:58,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:16:58,262 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:16:58,266 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) [2021-06-16 21:16:58,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:16:58,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:16:58,303 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-16 21:16:58,303 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:16:58,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:16:58,304 INFO L82 PathProgramCache]: Analyzing trace with hash 2119693475, now seen corresponding path program 1 times [2021-06-16 21:16:58,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:16:58,304 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479231072] [2021-06-16 21:16:58,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:16:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:16:58,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:16:58,416 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:16:58,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479231072] [2021-06-16 21:16:58,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479231072] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:16:58,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361924892] [2021-06-16 21:16:58,416 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 [2021-06-16 21:16:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:16:58,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-16 21:16:58,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:16:58,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:16:58,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361924892] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:16:58,613 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:16:58,613 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2021-06-16 21:16:58,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451186946] [2021-06-16 21:16:58,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-16 21:16:58,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:16:58,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-16 21:16:58,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-06-16 21:16:58,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:16:58,615 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:16:58,615 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) [2021-06-16 21:16:58,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:16:58,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:16:58,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:16:58,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:16:58,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:16:58,900 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:16:58,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:16:58,901 INFO L82 PathProgramCache]: Analyzing trace with hash -1624375643, now seen corresponding path program 1 times [2021-06-16 21:16:58,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:16:58,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446127814] [2021-06-16 21:16:58,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:16:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:16:59,021 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:16:59,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:16:59,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446127814] [2021-06-16 21:16:59,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446127814] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:16:59,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127621899] [2021-06-16 21:16:59,022 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 [2021-06-16 21:16:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:16:59,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-16 21:16:59,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:16:59,262 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:16:59,284 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 [2021-06-16 21:16:59,286 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:16:59,292 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:16:59,295 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-16 21:16:59,295 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:7 [2021-06-16 21:16:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:16:59,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127621899] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:16:59,320 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:16:59,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-16 21:16:59,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137590441] [2021-06-16 21:16:59,322 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-16 21:16:59,322 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:16:59,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-16 21:16:59,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-16 21:16:59,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:16:59,325 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:16:59,325 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) [2021-06-16 21:16:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:16:59,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:16:59,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:16:59,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:16:59,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:16:59,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:16:59,577 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:16:59,579 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:16:59,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:16:59,580 INFO L82 PathProgramCache]: Analyzing trace with hash 210936483, now seen corresponding path program 2 times [2021-06-16 21:16:59,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:16:59,580 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393042743] [2021-06-16 21:16:59,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:16:59,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:16:59,646 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:16:59,646 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:16:59,646 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393042743] [2021-06-16 21:16:59,647 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393042743] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:16:59,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332047489] [2021-06-16 21:16:59,647 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 [2021-06-16 21:16:59,671 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:16:59,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:16:59,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-16 21:16:59,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:16:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:16:59,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332047489] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:16:59,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:16:59,789 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 13 [2021-06-16 21:16:59,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548691539] [2021-06-16 21:16:59,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-16 21:16:59,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:16:59,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-16 21:16:59,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2021-06-16 21:16:59,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:16:59,791 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:16:59,792 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) [2021-06-16 21:16:59,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:16:59,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:16:59,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:16:59,792 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:16:59,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:16:59,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:16:59,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:16:59,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:00,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:00,145 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:00,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:00,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1988809563, now seen corresponding path program 3 times [2021-06-16 21:17:00,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:00,146 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247930410] [2021-06-16 21:17:00,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:00,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:00,293 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:00,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:00,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247930410] [2021-06-16 21:17:00,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247930410] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:00,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [308490779] [2021-06-16 21:17:00,293 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 [2021-06-16 21:17:00,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-16 21:17:00,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:17:00,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-16 21:17:00,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:00,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:00,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:00,576 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:00,576 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 [2021-06-16 21:17:00,588 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-16 21:17:00,603 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:00,628 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-16 21:17:00,628 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:27 [2021-06-16 21:17:00,683 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:00,683 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [308490779] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:00,683 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:00,683 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 15 [2021-06-16 21:17:00,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86365179] [2021-06-16 21:17:00,684 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-16 21:17:00,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:00,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-16 21:17:00,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2021-06-16 21:17:00,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:00,690 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:00,691 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) [2021-06-16 21:17:00,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:00,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:00,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:00,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:00,691 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:00,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:00,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:00,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:01,017 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:01,018 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:01,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1839673567, now seen corresponding path program 4 times [2021-06-16 21:17:01,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:01,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199594051] [2021-06-16 21:17:01,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:01,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:01,110 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:01,110 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:01,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199594051] [2021-06-16 21:17:01,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199594051] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:01,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [718663371] [2021-06-16 21:17:01,110 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 [2021-06-16 21:17:01,137 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-16 21:17:01,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:17:01,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-16 21:17:01,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:01,278 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:01,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [718663371] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:01,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:01,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 19 [2021-06-16 21:17:01,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150324504] [2021-06-16 21:17:01,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-16 21:17:01,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:01,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-16 21:17:01,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2021-06-16 21:17:01,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:01,279 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:01,280 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) [2021-06-16 21:17:01,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:01,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:01,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:01,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:01,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:01,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:01,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:01,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:01,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:17:01,709 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:01,709 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:01,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:01,709 INFO L82 PathProgramCache]: Analyzing trace with hash -40043611, now seen corresponding path program 5 times [2021-06-16 21:17:01,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:01,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430669032] [2021-06-16 21:17:01,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:01,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:02,065 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:02,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:02,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430669032] [2021-06-16 21:17:02,066 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430669032] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:02,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826636152] [2021-06-16 21:17:02,066 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 [2021-06-16 21:17:02,102 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-16 21:17:02,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:17:02,103 WARN L261 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 35 conjunts are in the unsatisfiable core [2021-06-16 21:17:02,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:02,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:02,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:02,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:02,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:02,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:02,415 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:02,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:02,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:02,417 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:02,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:02,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:02,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:02,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:02,420 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 [2021-06-16 21:17:02,421 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:17:02,426 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:02,427 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-16 21:17:02,427 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:75, output treesize:7 [2021-06-16 21:17:02,455 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:02,455 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826636152] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:02,455 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:02,455 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 24 [2021-06-16 21:17:02,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992716890] [2021-06-16 21:17:02,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-16 21:17:02,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:02,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-16 21:17:02,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2021-06-16 21:17:02,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:02,456 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:02,457 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) [2021-06-16 21:17:02,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:02,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:02,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:02,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:02,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:02,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:17:02,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:03,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:17:03,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-16 21:17:03,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:03,529 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:03,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:03,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1812733093, now seen corresponding path program 6 times [2021-06-16 21:17:03,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:03,530 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034893942] [2021-06-16 21:17:03,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:03,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:03,925 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:03,925 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:03,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034893942] [2021-06-16 21:17:03,925 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034893942] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:03,925 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942214636] [2021-06-16 21:17:03,925 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 [2021-06-16 21:17:03,969 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-16 21:17:03,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:17:03,970 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 47 conjunts are in the unsatisfiable core [2021-06-16 21:17:03,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:04,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:04,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:04,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:04,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:04,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:04,838 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:04,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:04,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:04,840 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:04,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:04,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:04,844 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:04,876 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:04,877 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 [2021-06-16 21:17:04,927 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-16 21:17:04,983 INFO L628 ElimStorePlain]: treesize reduction 280, result has 11.1 percent of original size [2021-06-16 21:17:05,011 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-16 21:17:05,011 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:103, output treesize:22 [2021-06-16 21:17:05,072 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:05,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942214636] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:05,073 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:05,073 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19] total 33 [2021-06-16 21:17:05,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161001346] [2021-06-16 21:17:05,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-16 21:17:05,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:05,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-16 21:17:05,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=990, Unknown=0, NotChecked=0, Total=1122 [2021-06-16 21:17:05,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:05,074 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:05,074 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) [2021-06-16 21:17:05,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:05,074 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:05,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:05,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:05,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:05,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:17:05,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-16 21:17:05,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:17:06,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-16 21:17:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-16 21:17:06,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-16 21:17:06,657 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:06,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:06,657 INFO L82 PathProgramCache]: Analyzing trace with hash -668528987, now seen corresponding path program 7 times [2021-06-16 21:17:06,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:06,658 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174792672] [2021-06-16 21:17:06,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:06,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 12 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:07,094 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:07,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174792672] [2021-06-16 21:17:07,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174792672] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:07,094 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866749059] [2021-06-16 21:17:07,094 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 [2021-06-16 21:17:07,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:07,127 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 51 conjunts are in the unsatisfiable core [2021-06-16 21:17:07,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:07,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:07,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,688 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:07,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,691 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:07,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,695 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:07,695 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:07,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:07,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:07,698 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 [2021-06-16 21:17:07,699 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:17:07,703 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:07,704 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-16 21:17:07,704 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:107, output treesize:7 [2021-06-16 21:17:07,724 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:07,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866749059] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:07,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:07,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 16] total 32 [2021-06-16 21:17:07,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1589542623] [2021-06-16 21:17:07,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-06-16 21:17:07,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:07,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-06-16 21:17:07,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2021-06-16 21:17:07,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:07,726 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:07,726 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) [2021-06-16 21:17:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:17:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-16 21:17:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-16 21:17:07,726 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:17:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-16 21:17:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-16 21:17:09,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-16 21:17:09,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:09,277 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:09,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:09,277 INFO L82 PathProgramCache]: Analyzing trace with hash 2110591397, now seen corresponding path program 8 times [2021-06-16 21:17:09,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:09,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044634269] [2021-06-16 21:17:09,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:09,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:09,864 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:09,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:09,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044634269] [2021-06-16 21:17:09,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044634269] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:09,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545390718] [2021-06-16 21:17:09,865 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 [2021-06-16 21:17:09,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-16 21:17:09,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:17:09,903 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 59 conjunts are in the unsatisfiable core [2021-06-16 21:17:09,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:10,627 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:10,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,633 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:10,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,638 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:10,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,643 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:10,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,645 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:10,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:10,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:10,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:10,650 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 [2021-06-16 21:17:10,651 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-16 21:17:10,656 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:10,657 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-16 21:17:10,657 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:123, output treesize:7 [2021-06-16 21:17:10,679 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:10,679 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545390718] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:10,679 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-16 21:17:10,679 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 36 [2021-06-16 21:17:10,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056196896] [2021-06-16 21:17:10,679 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-06-16 21:17:10,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-16 21:17:10,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-06-16 21:17:10,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1192, Unknown=0, NotChecked=0, Total=1332 [2021-06-16 21:17:10,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:10,680 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-16 21:17:10,680 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) [2021-06-16 21:17:10,680 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:10,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:10,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:10,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:10,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:10,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:17:10,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-16 21:17:10,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-16 21:17:10,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-16 21:17:10,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-16 21:17:12,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-16 21:17:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-16 21:17:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-16 21:17:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-16 21:17:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-16 21:17:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-16 21:17:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-16 21:17:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-16 21:17:12,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-16 21:17:12,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-16 21:17:12,672 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-16 21:17:12,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-16 21:17:12,672 INFO L82 PathProgramCache]: Analyzing trace with hash -900897371, now seen corresponding path program 9 times [2021-06-16 21:17:12,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-16 21:17:12,672 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218709724] [2021-06-16 21:17:12,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-16 21:17:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-16 21:17:13,263 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 25 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-16 21:17:13,263 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-16 21:17:13,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218709724] [2021-06-16 21:17:13,263 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218709724] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-16 21:17:13,263 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133372207] [2021-06-16 21:17:13,263 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 [2021-06-16 21:17:13,296 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-06-16 21:17:13,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-16 21:17:13,297 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 71 conjunts are in the unsatisfiable core [2021-06-16 21:17:13,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-16 21:17:17,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:17,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,492 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:17,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,510 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:17,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-16 21:17:17,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-16 21:17:17,762 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2021-06-16 21:17:17,762 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-16 21:17:17,763 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 [2021-06-16 21:17:18,653 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 242 [2021-06-16 21:17:18,932 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 262 [2021-06-16 21:17:19,203 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 297 DAG size of output: 308 [2021-06-16 21:17:19,701 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 221 [2021-06-16 21:17:20,045 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 271 [2021-06-16 21:17:20,592 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 221 [2021-06-16 21:17:20,775 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 242 DAG size of output: 242 [2021-06-16 21:17:21,485 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2021-06-16 21:17:21,888 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 276 [2021-06-16 21:17:22,662 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 342 [2021-06-16 21:17:23,469 WARN L205 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 412 [2021-06-16 21:17:24,733 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 503 DAG size of output: 520 [2021-06-16 21:17:26,621 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 641 DAG size of output: 665 [2021-06-16 21:17:28,886 WARN L205 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 673 DAG size of output: 697 [2021-06-16 21:17:29,503 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 263 [2021-06-16 21:17:29,667 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 298 [2021-06-16 21:17:29,899 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 333 [2021-06-16 21:17:30,200 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 370 [2021-06-16 21:17:30,651 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 297 [2021-06-16 21:17:30,794 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 334 [2021-06-16 21:17:31,440 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 477 [2021-06-16 21:17:31,928 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 287 [2021-06-16 21:17:32,427 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 307 [2021-06-16 21:17:33,083 WARN L205 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 634 [2021-06-16 21:17:33,935 WARN L205 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 678 [2021-06-16 21:17:35,392 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 823 DAG size of output: 833 [2021-06-16 21:17:36,164 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 207 [2021-06-16 21:17:36,318 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 222 [2021-06-16 21:17:36,706 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 270 [2021-06-16 21:17:37,108 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 347 [2021-06-16 21:17:37,978 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 411 [2021-06-16 21:17:40,514 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 1066 DAG size of output: 1073 [2021-06-16 21:17:46,220 WARN L205 SmtUtils]: Spent 5.70 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-06-16 21:17:51,916 WARN L205 SmtUtils]: Spent 5.69 s on a formula simplification. DAG size of input: 1491 DAG size of output: 1519 [2021-06-16 21:17:57,694 WARN L205 SmtUtils]: Spent 5.77 s on a formula simplification. DAG size of input: 1502 DAG size of output: 1530 [2021-06-16 21:18:00,306 WARN L205 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 741 DAG size of output: 950 [2021-06-16 21:18:03,149 WARN L205 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 736 DAG size of output: 1124 [2021-06-16 21:18:05,025 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 692 DAG size of output: 835 [2021-06-16 21:18:05,760 WARN L205 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 631 DAG size of output: 695 [2021-06-16 21:18:07,634 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 617 DAG size of output: 791 [2021-06-16 21:18:08,240 WARN L205 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 581 DAG size of output: 595 [2021-06-16 21:18:09,338 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 578 DAG size of output: 808 [2021-06-16 21:18:10,028 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 467 DAG size of output: 446 [2021-06-16 21:18:10,776 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 578 DAG size of output: 558 [2021-06-16 21:18:10,950 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 222 [2021-06-16 21:18:11,350 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 315 [2021-06-16 21:18:12,332 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 275 [2021-06-16 21:18:12,538 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 412 [2021-06-16 21:18:16,219 WARN L205 SmtUtils]: Spent 3.68 s on a formula simplification. DAG size of input: 1917 DAG size of output: 1769 [2021-06-16 21:18:21,666 WARN L205 SmtUtils]: Spent 5.44 s on a formula simplification. DAG size of input: 2194 DAG size of output: 2044 [2021-06-16 21:18:29,276 WARN L205 SmtUtils]: Spent 7.60 s on a formula simplification. DAG size of input: 2459 DAG size of output: 2323 [2021-06-16 21:18:29,863 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 587 [2021-06-16 21:18:30,084 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 536 DAG size of output: 541 [2021-06-16 21:18:30,591 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 446 [2021-06-16 21:18:30,787 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 223 [2021-06-16 21:18:31,153 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 257 [2021-06-16 21:18:31,377 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 351 [2021-06-16 21:18:32,012 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 387 [2021-06-16 21:18:32,677 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 557 DAG size of output: 531 [2021-06-16 21:18:33,343 WARN L205 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 771 DAG size of output: 708 [2021-06-16 21:18:33,853 WARN L205 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-06-16 21:18:34,111 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 354 [2021-06-16 21:18:34,923 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 471 DAG size of output: 443 [2021-06-16 21:18:35,568 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 311 [2021-06-16 21:18:36,008 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 310 DAG size of output: 289 [2021-06-16 21:18:36,356 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 344 [2021-06-16 21:18:37,588 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 734 DAG size of output: 696 [2021-06-16 21:18:40,005 WARN L205 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 1237 DAG size of output: 1148 [2021-06-16 21:18:40,175 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 250 DAG size of output: 306 [2021-06-16 21:18:40,633 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 348 [2021-06-16 21:18:41,310 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 485 DAG size of output: 473 [2021-06-16 21:18:41,685 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 690 [2021-06-16 21:18:42,284 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 795 DAG size of output: 784 [2021-06-16 21:18:43,093 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 357 [2021-06-16 21:18:43,652 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 288 [2021-06-16 21:18:43,868 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 381 [2021-06-16 21:18:44,376 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 313 DAG size of output: 311 [2021-06-16 21:18:44,848 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 551 DAG size of output: 550 [2021-06-16 21:18:45,671 WARN L205 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 790 DAG size of output: 792 [2021-06-16 21:18:50,553 WARN L205 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 2269 DAG size of output: 2166 [2021-06-16 21:18:58,065 WARN L205 SmtUtils]: Spent 7.42 s on a formula simplification. DAG size of input: 2617 DAG size of output: 2468 [2021-06-16 21:19:08,011 WARN L205 SmtUtils]: Spent 9.93 s on a formula simplification. DAG size of input: 2856 DAG size of output: 2716 [2021-06-16 21:19:28,439 WARN L205 SmtUtils]: Spent 20.41 s on a formula simplification. DAG size of input: 4301 DAG size of output: 4043 [2021-06-16 21:19:29,039 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 637 DAG size of output: 651 [2021-06-16 21:19:30,365 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 634 DAG size of output: 902 [2021-06-16 21:19:31,527 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 478 DAG size of output: 700 [2021-06-16 21:19:31,971 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 194 [2021-06-16 21:19:32,737 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 324 [2021-06-16 21:19:33,122 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 387 [2021-06-16 21:19:33,284 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 280 [2021-06-16 21:19:33,788 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 442 DAG size of output: 427 [2021-06-16 21:19:35,756 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 1172 DAG size of output: 1090 [2021-06-16 21:19:36,456 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 381 [2021-06-16 21:19:36,782 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 514 DAG size of output: 501 [2021-06-16 21:19:37,399 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 286 DAG size of output: 285 [2021-06-16 21:19:37,979 WARN L205 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 678 DAG size of output: 662 [2021-06-16 21:19:41,158 WARN L205 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 1655 DAG size of output: 1556 [2021-06-16 21:19:45,884 WARN L205 SmtUtils]: Spent 4.72 s on a formula simplification. DAG size of input: 1952 DAG size of output: 1867 [2021-06-16 21:19:52,727 WARN L205 SmtUtils]: Spent 6.83 s on a formula simplification. DAG size of input: 2252 DAG size of output: 2166 [2021-06-16 21:20:03,977 WARN L205 SmtUtils]: Spent 11.07 s on a formula simplification. DAG size of input: 3203 DAG size of output: 2955 [2021-06-16 21:20:40,928 WARN L205 SmtUtils]: Spent 36.93 s on a formula simplification. DAG size of input: 6325 DAG size of output: 5851 [2021-06-16 21:20:41,079 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 701 [2021-06-16 21:20:43,591 WARN L205 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 671 DAG size of output: 978 [2021-06-16 21:20:46,033 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 668 DAG size of output: 961 [2021-06-16 21:20:49,130 WARN L205 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 665 DAG size of output: 974 [2021-06-16 21:20:49,530 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 285 [2021-06-16 21:20:49,699 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 193 [2021-06-16 21:20:50,049 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 337 [2021-06-16 21:20:50,466 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 416 [2021-06-16 21:20:50,902 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 506 DAG size of output: 453 [2021-06-16 21:20:51,558 WARN L205 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 615 DAG size of output: 563 [2021-06-16 21:20:51,686 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 200 [2021-06-16 21:20:51,981 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 262 [2021-06-16 21:20:52,845 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 316 [2021-06-16 21:20:53,645 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 583 DAG size of output: 563 [2021-06-16 21:20:54,117 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 303 DAG size of output: 394 [2021-06-16 21:20:55,484 WARN L205 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 658 DAG size of output: 639 [2021-06-16 21:21:01,333 WARN L205 SmtUtils]: Spent 5.84 s on a formula simplification. DAG size of input: 2009 DAG size of output: 1914 [2021-06-16 21:21:10,461 WARN L205 SmtUtils]: Spent 9.12 s on a formula simplification. DAG size of input: 2013 DAG size of output: 1916 [2021-06-16 21:21:22,996 WARN L205 SmtUtils]: Spent 12.53 s on a formula simplification. DAG size of input: 2325 DAG size of output: 2231 [2021-06-16 21:21:43,390 WARN L205 SmtUtils]: Spent 20.16 s on a formula simplification. DAG size of input: 3594 DAG size of output: 3167 [2021-06-16 21:22:49,520 WARN L205 SmtUtils]: Spent 1.10 m on a formula simplification. DAG size of input: 9326 DAG size of output: 8368 [2021-06-16 21:24:07,513 WARN L205 SmtUtils]: Spent 1.30 m on a formula simplification. DAG size of input: 9585 DAG size of output: 8636 [2021-06-16 21:24:10,944 WARN L205 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 1088 DAG size of output: 1536 [2021-06-16 21:24:14,227 WARN L205 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 1085 DAG size of output: 1490 [2021-06-16 21:24:14,395 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 1080 [2021-06-16 21:24:14,578 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 263 [2021-06-16 21:24:14,721 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 260 [2021-06-16 21:24:15,189 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 281 [2021-06-16 21:24:15,409 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 285 DAG size of output: 284 [2021-06-16 21:24:15,731 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 336 [2021-06-16 21:24:16,216 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 423 DAG size of output: 401 [2021-06-16 21:24:16,867 WARN L205 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 427 DAG size of output: 403 [2021-06-16 21:24:17,275 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 367 [2021-06-16 21:24:17,636 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 359 [2021-06-16 21:24:18,175 WARN L205 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 275 DAG size of output: 364 [2021-06-16 21:24:18,470 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 246 [2021-06-16 21:24:19,453 WARN L205 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 628 DAG size of output: 589 [2021-06-16 21:24:20,477 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 633 DAG size of output: 592 [2021-06-16 21:24:21,985 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 757 DAG size of output: 712 [2021-06-16 21:24:22,108 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 244 [2021-06-16 21:24:22,228 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 243 [2021-06-16 21:24:22,343 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 233 [2021-06-16 21:24:22,885 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 332 DAG size of output: 322 [2021-06-16 21:24:23,119 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 368 [2021-06-16 21:24:23,493 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 422 [2021-06-16 21:24:24,056 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 469 [2021-06-16 21:24:26,525 WARN L205 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 1092 DAG size of output: 1023 [2021-06-16 21:24:30,303 WARN L205 SmtUtils]: Spent 3.77 s on a formula simplification. DAG size of input: 1294 DAG size of output: 1202 [2021-06-16 21:24:30,411 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 840 [2021-06-16 21:24:30,856 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 412 [2021-06-16 21:24:31,415 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 236 [2021-06-16 21:24:31,701 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 297 [2021-06-16 21:24:32,091 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 352 [2021-06-16 21:24:32,625 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 272 DAG size of output: 326 [2021-06-16 21:24:32,920 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 350 [2021-06-16 21:24:33,534 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 493 [2021-06-16 21:24:34,043 WARN L205 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 641 DAG size of output: 602 [2021-06-16 21:24:34,827 WARN L205 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 779 DAG size of output: 741 [2021-06-16 21:24:36,152 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 987 DAG size of output: 950 [2021-06-16 21:24:38,067 WARN L205 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 1124 DAG size of output: 1088 [2021-06-16 21:24:41,134 WARN L205 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 1499 DAG size of output: 1406 [2021-06-16 21:24:41,639 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 340 [2021-06-16 21:24:41,840 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 353 [2021-06-16 21:24:42,513 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 587 DAG size of output: 571 [2021-06-16 21:24:42,880 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 727 DAG size of output: 707 [2021-06-16 21:24:43,430 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 816 DAG size of output: 802 [2021-06-16 21:24:43,944 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 333 [2021-06-16 21:24:44,828 WARN L205 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 1003 [2021-06-16 21:24:45,093 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 298 DAG size of output: 366 [2021-06-16 21:24:45,229 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 322 [2021-06-16 21:24:45,359 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 306 [2021-06-16 21:24:45,856 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 609 DAG size of output: 586 [2021-06-16 21:24:46,238 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 693 DAG size of output: 674 [2021-06-16 21:24:46,918 WARN L205 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 818 DAG size of output: 794 [2021-06-16 21:24:47,084 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 312 [2021-06-16 21:24:47,757 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 555 DAG size of output: 532 [2021-06-16 21:24:48,196 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 676 [2021-06-16 21:24:49,247 WARN L205 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 845 DAG size of output: 815 [2021-06-16 21:24:49,748 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 301 [2021-06-16 21:24:50,056 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 318 [2021-06-16 21:24:50,435 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 535 DAG size of output: 499 [2021-06-16 21:24:50,701 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 664 DAG size of output: 632 [2021-06-16 21:24:50,897 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 335 [2021-06-16 21:24:51,007 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 297 [2021-06-16 21:24:51,110 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 299 [2021-06-16 21:24:52,017 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 567 DAG size of output: 517 [2021-06-16 21:24:52,365 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 639 [2021-06-16 21:24:52,875 WARN L205 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 804 DAG size of output: 760 [2021-06-16 21:24:53,632 WARN L205 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 917 DAG size of output: 878 [2021-06-16 21:24:54,757 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 1213 DAG size of output: 1168 [2021-06-16 21:24:57,286 WARN L205 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 1965 DAG size of output: 1905 [2021-06-16 21:25:02,358 WARN L205 SmtUtils]: Spent 5.06 s on a formula simplification. DAG size of input: 2878 DAG size of output: 2788 [2021-06-16 21:25:10,979 WARN L205 SmtUtils]: Spent 8.61 s on a formula simplification. DAG size of input: 4237 DAG size of output: 3592 [2021-06-16 21:25:24,877 WARN L205 SmtUtils]: Spent 13.88 s on a formula simplification. DAG size of input: 5311 DAG size of output: 4573 [2021-06-16 21:25:45,570 WARN L205 SmtUtils]: Spent 20.67 s on a formula simplification. DAG size of input: 6289 DAG size of output: 5463 [2021-06-16 21:26:12,114 WARN L205 SmtUtils]: Spent 26.51 s on a formula simplification. DAG size of input: 6859 DAG size of output: 6051 [2021-06-16 21:26:45,487 WARN L205 SmtUtils]: Spent 33.34 s on a formula simplification. DAG size of input: 6979 DAG size of output: 6178 [2021-06-16 21:28:51,552 WARN L205 SmtUtils]: Spent 2.10 m on a formula simplification. DAG size of input: 15531 DAG size of output: 13741 [2021-06-16 21:30:57,454 WARN L205 SmtUtils]: Spent 2.10 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