/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-New_States.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-12 16:55:38,649 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-12 16:55:38,651 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-12 16:55:38,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-12 16:55:38,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-12 16:55:38,696 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-12 16:55:38,697 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-12 16:55:38,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-12 16:55:38,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-12 16:55:38,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-12 16:55:38,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-12 16:55:38,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-12 16:55:38,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-12 16:55:38,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-12 16:55:38,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-12 16:55:38,710 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-12 16:55:38,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-12 16:55:38,722 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-12 16:55:38,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-12 16:55:38,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-12 16:55:38,724 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-Sleep-NoLbe-New_States.epf [2021-03-12 16:55:38,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-12 16:55:38,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-12 16:55:38,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-12 16:55:38,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-12 16:55:38,769 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-12 16:55:38,769 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-12 16:55:38,770 INFO L138 SettingsManager]: * Use SBE=true [2021-03-12 16:55:38,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-12 16:55:38,770 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-12 16:55:38,770 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-12 16:55:38,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-12 16:55:38,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-12 16:55:38,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-12 16:55:38,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-12 16:55:38,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-12 16:55:38,772 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-12 16:55:38,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-12 16:55:38,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-12 16:55:38,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-12 16:55:38,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-12 16:55:38,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-12 16:55:38,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-12 16:55:38,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-12 16:55:38,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-12 16:55:38,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-12 16:55:38,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-12 16:55:38,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-12 16:55:38,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-12 16:55:38,775 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-12 16:55:38,775 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-12 16:55:38,775 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-03-12 16:55:38,775 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-12 16:55:38,776 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-03-12 16:55:38,776 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-12 16:55:39,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-12 16:55:39,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-12 16:55:39,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-12 16:55:39,279 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-12 16:55:39,281 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-12 16:55:39,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl [2021-03-12 16:55:39,282 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-1.wvr.bpl' [2021-03-12 16:55:39,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-12 16:55:39,329 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-12 16:55:39,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-12 16:55:39,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-12 16:55:39,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-12 16:55:39,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:55:39" (1/1) ... [2021-03-12 16:55:39,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:55:39" (1/1) ... [2021-03-12 16:55:39,368 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-12 16:55:39,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-12 16:55:39,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-12 16:55:39,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-12 16:55:39,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:55:39" (1/1) ... [2021-03-12 16:55:39,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:55:39" (1/1) ... [2021-03-12 16:55:39,381 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:55:39" (1/1) ... [2021-03-12 16:55:39,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:55:39" (1/1) ... [2021-03-12 16:55:39,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:55:39" (1/1) ... [2021-03-12 16:55:39,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:55:39" (1/1) ... [2021-03-12 16:55:39,390 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:55:39" (1/1) ... [2021-03-12 16:55:39,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-12 16:55:39,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-12 16:55:39,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-12 16:55:39,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-12 16:55:39,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:55:39" (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 [2021-03-12 16:55:39,482 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-03-12 16:55:39,482 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-03-12 16:55:39,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-03-12 16:55:39,483 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-03-12 16:55:39,483 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-03-12 16:55:39,483 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-03-12 16:55:39,483 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-12 16:55:39,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-12 16:55:39,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-12 16:55:39,484 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-12 16:55:39,738 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-12 16:55:39,738 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-12 16:55:39,740 INFO L202 PluginConnector]: Adding new model misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 04:55:39 BoogieIcfgContainer [2021-03-12 16:55:39,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-12 16:55:39,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-12 16:55:39,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-12 16:55:39,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-12 16:55:39,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.03 04:55:39" (1/2) ... [2021-03-12 16:55:39,747 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fa5ba and model type misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.03 04:55:39, skipping insertion in model container [2021-03-12 16:55:39,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-1.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.03 04:55:39" (2/2) ... [2021-03-12 16:55:39,751 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-1.wvr.bpl [2021-03-12 16:55:39,762 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-12 16:55:39,762 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-12 16:55:39,769 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-12 16:55:39,770 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-12 16:55:39,838 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-03-12 16:55:39,872 INFO L253 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 [2021-03-12 16:55:39,974 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-12 16:55:39,974 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-12 16:55:39,974 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-12 16:55:39,974 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-12 16:55:39,974 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-12 16:55:39,974 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-12 16:55:39,974 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-12 16:55:39,975 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-12 16:55:40,058 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:55:40,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:55:40,070 INFO L82 PathProgramCache]: Analyzing trace with hash 551372010, now seen corresponding path program 1 times [2021-03-12 16:55:40,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:55:40,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544253244] [2021-03-12 16:55:40,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:55:40,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:55:40,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544253244] [2021-03-12 16:55:40,408 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-12 16:55:40,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-12 16:55:40,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033949769] [2021-03-12 16:55:40,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-12 16:55:40,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:55:40,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-12 16:55:40,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-03-12 16:55:40,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:40,427 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:55:40,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-03-12 16:55:40,429 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:40,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:55:40,632 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-12 16:55:40,632 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:55:40,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:55:40,637 INFO L82 PathProgramCache]: Analyzing trace with hash 2089023387, now seen corresponding path program 1 times [2021-03-12 16:55:40,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:55:40,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428217171] [2021-03-12 16:55:40,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:55:40,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:40,744 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-03-12 16:55:40,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428217171] [2021-03-12 16:55:40,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429040155] [2021-03-12 16:55:40,745 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 [2021-03-12 16:55:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:40,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2021-03-12 16:55:40,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:55:40,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:55:40,948 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:55:40,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2021-03-12 16:55:40,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139081737] [2021-03-12 16:55:40,950 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-03-12 16:55:40,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:55:40,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-03-12 16:55:40,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-03-12 16:55:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:40,952 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:55:40,952 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:55:40,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:55:40,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:41,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:55:41,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:55:41,329 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:55:41,329 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:55:41,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:55:41,330 INFO L82 PathProgramCache]: Analyzing trace with hash 655496662, now seen corresponding path program 1 times [2021-03-12 16:55:41,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:55:41,330 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437182574] [2021-03-12 16:55:41,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:55:41,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:41,865 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:55:41,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437182574] [2021-03-12 16:55:41,869 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271763330] [2021-03-12 16:55:41,869 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 [2021-03-12 16:55:41,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:41,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 29 conjunts are in the unsatisfiable core [2021-03-12 16:55:41,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:55:42,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-03-12 16:55:42,260 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 16:55:42,265 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 16:55:42,267 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 16:55:42,267 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:10 [2021-03-12 16:55:42,336 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:55:42,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:55:42,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 19 [2021-03-12 16:55:42,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251610843] [2021-03-12 16:55:42,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-03-12 16:55:42,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:55:42,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-03-12 16:55:42,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2021-03-12 16:55:42,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:42,344 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:55:42,344 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.35) internal successors, (47), 19 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:55:42,344 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:55:42,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:55:42,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:55:43,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:55:43,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:55:43,351 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:55:43,351 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:55:43,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:55:43,352 INFO L82 PathProgramCache]: Analyzing trace with hash -488912293, now seen corresponding path program 1 times [2021-03-12 16:55:43,352 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:55:43,352 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631837536] [2021-03-12 16:55:43,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:55:43,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:55:43,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631837536] [2021-03-12 16:55:43,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375250199] [2021-03-12 16:55:43,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-03-12 16:55:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:43,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2021-03-12 16:55:43,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:55:43,676 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:55:43,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:55:43,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-03-12 16:55:43,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047051356] [2021-03-12 16:55:43,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-03-12 16:55:43,677 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:55:43,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-03-12 16:55:43,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-03-12 16:55:43,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:43,678 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:55:43,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-12 16:55:43,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:55:43,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:55:43,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:55:43,679 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:43,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:55:43,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:55:43,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:55:43,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:55:44,111 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:55:44,111 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:55:44,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:55:44,112 INFO L82 PathProgramCache]: Analyzing trace with hash -514289982, now seen corresponding path program 2 times [2021-03-12 16:55:44,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:55:44,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162095154] [2021-03-12 16:55:44,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:55:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:45,244 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 1 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:55:45,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162095154] [2021-03-12 16:55:45,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706300116] [2021-03-12 16:55:45,245 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 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 [2021-03-12 16:55:45,303 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 16:55:45,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:55:45,306 WARN L261 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 45 conjunts are in the unsatisfiable core [2021-03-12 16:55:45,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:55:46,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 22 [2021-03-12 16:55:46,123 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-03-12 16:55:46,129 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 16:55:46,130 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-03-12 16:55:46,130 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:49, output treesize:10 [2021-03-12 16:55:46,180 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:55:46,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:55:46,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 18] total 35 [2021-03-12 16:55:46,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670233816] [2021-03-12 16:55:46,182 INFO L460 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-03-12 16:55:46,183 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:55:46,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-03-12 16:55:46,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1068, Unknown=0, NotChecked=0, Total=1260 [2021-03-12 16:55:46,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:46,194 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:55:46,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.1944444444444446) internal successors, (79), 35 states have internal predecessors, (79), 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) [2021-03-12 16:55:46,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:55:46,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:55:46,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:55:46,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:55:46,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:47,866 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2021-03-12 16:55:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:55:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:55:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:55:49,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:55:49,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-03-12 16:55:49,747 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:55:49,747 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:55:49,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:55:49,748 INFO L82 PathProgramCache]: Analyzing trace with hash 1025647515, now seen corresponding path program 2 times [2021-03-12 16:55:49,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:55:49,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904435599] [2021-03-12 16:55:49,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:55:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:49,956 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 110 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:55:49,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904435599] [2021-03-12 16:55:49,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946369670] [2021-03-12 16:55:49,957 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 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 [2021-03-12 16:55:49,996 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-03-12 16:55:49,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:55:49,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 17 conjunts are in the unsatisfiable core [2021-03-12 16:55:49,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:55:50,224 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 139 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:55:50,224 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-03-12 16:55:50,225 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-03-12 16:55:50,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983704515] [2021-03-12 16:55:50,225 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-12 16:55:50,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-12 16:55:50,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-12 16:55:50,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-03-12 16:55:50,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:50,227 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-03-12 16:55:50,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 4.444444444444445) internal successors, (80), 17 states have internal predecessors, (80), 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) [2021-03-12 16:55:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:55:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:55:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:55:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:55:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2021-03-12 16:55:50,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-03-12 16:55:50,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-12 16:55:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-03-12 16:55:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-03-12 16:55:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-12 16:55:50,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-03-12 16:55:50,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-12 16:55:50,947 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-03-12 16:55:50,947 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-12 16:55:50,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-12 16:55:50,948 INFO L82 PathProgramCache]: Analyzing trace with hash -76158586, now seen corresponding path program 3 times [2021-03-12 16:55:50,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-12 16:55:50,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419429017] [2021-03-12 16:55:50,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-12 16:55:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-12 16:55:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 91 proven. 289 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-12 16:55:54,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419429017] [2021-03-12 16:55:54,243 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608934057] [2021-03-12 16:55:54,243 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 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 [2021-03-12 16:55:54,336 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-03-12 16:55:54,337 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-03-12 16:55:54,340 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 95 conjunts are in the unsatisfiable core [2021-03-12 16:55:54,345 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-03-12 16:55:59,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:55:59,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-03-12 16:56:00,041 INFO L244 Elim1Store]: Index analysis took 121 ms [2021-03-12 16:56:00,862 WARN L205 SmtUtils]: Spent 818.00 ms on a formula simplification that was a NOOP. DAG size: 321 [2021-03-12 16:56:00,863 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-03-12 16:56:00,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 66 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 70 case distinctions, treesize of input 136 treesize of output 768 [2021-03-12 16:56:02,566 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 5520 DAG size of output: 3452 [2021-03-12 16:56:03,668 WARN L205 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 5551 DAG size of output: 3483 [2021-03-12 16:56:04,047 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 3252 DAG size of output: 3228 [2021-03-12 16:56:04,692 WARN L205 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 2957 DAG size of output: 3105 [2021-03-12 16:56:05,305 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 2953 DAG size of output: 3053 [2021-03-12 16:56:05,907 WARN L205 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 2949 DAG size of output: 3117 [2021-03-12 16:56:06,159 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 2943 DAG size of output: 2943 [2021-03-12 16:56:06,389 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 2750 DAG size of output: 2750 [2021-03-12 16:56:07,529 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 2451 DAG size of output: 2613 [2021-03-12 16:56:07,710 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 2445 DAG size of output: 2445 [2021-03-12 16:56:07,864 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 2136 DAG size of output: 2136 [2021-03-12 16:56:08,753 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 1933 DAG size of output: 1933 [2021-03-12 16:56:11,300 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1942 DAG size of output: 1844 [2021-03-12 16:56:11,977 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 2338 DAG size of output: 2218 [2021-03-12 16:56:12,513 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 2624 DAG size of output: 2475 [2021-03-12 16:56:12,709 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 3108 DAG size of output: 2884 [2021-03-12 16:56:13,674 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 3619 DAG size of output: 3368 [2021-03-12 16:56:14,065 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 4120 DAG size of output: 3866 [2021-03-12 16:56:14,569 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 4606 DAG size of output: 4329 [2021-03-12 16:56:16,091 WARN L205 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 5279 DAG size of output: 4859 [2021-03-12 16:56:16,819 WARN L205 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 5844 DAG size of output: 5424 [2021-03-12 16:56:17,849 WARN L205 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 6424 DAG size of output: 6001 [2021-03-12 16:56:19,041 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 6849 DAG size of output: 6424 [2021-03-12 16:56:20,144 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1060 DAG size of output: 1003 [2021-03-12 16:56:21,438 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 7363 DAG size of output: 6904 [2021-03-12 16:56:22,895 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 7363 DAG size of output: 6904 [2021-03-12 16:56:24,448 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 7369 DAG size of output: 6910 [2021-03-12 16:56:27,240 WARN L205 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 6706 DAG size of output: 7742 [2021-03-12 16:56:29,987 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 6694 DAG size of output: 7515 [2021-03-12 16:56:31,440 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 6683 DAG size of output: 6661 [2021-03-12 16:56:31,599 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 979 DAG size of output: 967 [2021-03-12 16:56:33,368 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 2636 DAG size of output: 2289 [2021-03-12 16:56:34,963 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 2294 DAG size of output: 2005 [2021-03-12 16:56:35,115 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 2633 DAG size of output: 2285 [2021-03-12 16:56:38,605 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 2746 DAG size of output: 2521 [2021-03-12 16:56:39,246 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 3482 DAG size of output: 3165 [2021-03-12 16:56:39,415 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 3870 DAG size of output: 3529 [2021-03-12 16:56:39,915 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 4395 DAG size of output: 4002 [2021-03-12 16:56:40,448 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 6817 DAG size of output: 6294 [2021-03-12 16:56:41,525 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 2663 DAG size of output: 2280 [2021-03-12 16:56:42,225 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 7973 DAG size of output: 7331 [2021-03-12 16:56:43,403 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 6228 DAG size of output: 6206 [2021-03-12 16:56:44,362 WARN L205 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 5811 DAG size of output: 5789 [2021-03-12 16:56:44,558 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 2734 DAG size of output: 2734 [2021-03-12 16:56:45,943 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 3222 DAG size of output: 3195 [2021-03-12 16:56:46,254 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 3681 DAG size of output: 3648 [2021-03-12 16:56:46,428 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 3784 DAG size of output: 3751 [2021-03-12 16:56:46,628 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 4094 DAG size of output: 4061 [2021-03-12 16:56:46,798 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 2552 DAG size of output: 2552 [2021-03-12 16:56:48,123 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 2268 DAG size of output: 2268 [2021-03-12 16:56:53,920 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 3749 DAG size of output: 3482 [2021-03-12 16:56:54,120 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 5002 DAG size of output: 4596 [2021-03-12 16:56:54,392 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 6139 DAG size of output: 5669 [2021-03-12 16:56:54,726 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 6950 DAG size of output: 6407 [2021-03-12 16:56:55,163 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 7808 DAG size of output: 7168 [2021-03-12 16:56:56,417 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 2548 DAG size of output: 2497 [2021-03-12 16:56:56,537 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 2849 DAG size of output: 2798 [2021-03-12 16:56:56,680 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 3163 DAG size of output: 3111 [2021-03-12 16:56:57,207 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 10131 DAG size of output: 9327 [2021-03-12 16:56:57,920 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 11625 DAG size of output: 10669 [2021-03-12 16:56:58,857 WARN L205 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 14224 DAG size of output: 13220 [2021-03-12 16:56:59,101 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 1179 DAG size of output: 1251 [2021-03-12 16:57:00,381 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 3194 DAG size of output: 3225 [2021-03-12 16:57:00,657 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 4179 DAG size of output: 4235 [2021-03-12 16:57:00,977 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 4623 DAG size of output: 4689 [2021-03-12 16:57:01,118 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 1043 DAG size of output: 1140 [2021-03-12 16:57:01,634 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 853 DAG size of output: 855 [2021-03-12 16:57:03,620 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 2536 DAG size of output: 2437 [2021-03-12 16:57:03,801 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 4020 DAG size of output: 3883 [2021-03-12 16:57:04,709 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 5076 DAG size of output: 4944 [2021-03-12 16:57:04,961 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 5615 DAG size of output: 5477 [2021-03-12 16:57:05,307 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 6152 DAG size of output: 6008 [2021-03-12 16:57:05,658 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 6695 DAG size of output: 6549 [2021-03-12 16:57:06,075 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 7165 DAG size of output: 7015 [2021-03-12 16:57:06,592 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 7780 DAG size of output: 7628 [2021-03-12 16:57:07,131 WARN L205 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 8380 DAG size of output: 8221 [2021-03-12 16:57:07,800 WARN L205 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 9009 DAG size of output: 8845 [2021-03-12 16:57:08,652 WARN L205 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 11234 DAG size of output: 11072 [2021-03-12 16:57:09,678 WARN L205 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 11925 DAG size of output: 11758 [2021-03-12 16:57:10,666 WARN L205 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 4242 DAG size of output: 5183 [2021-03-12 16:57:11,071 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 4152 DAG size of output: 4131 [2021-03-12 16:57:11,423 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 3714 DAG size of output: 3693 [2021-03-12 16:57:11,637 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 2286 DAG size of output: 2286 [2021-03-12 16:57:13,089 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 3348 DAG size of output: 3254 [2021-03-12 16:57:16,641 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 4223 DAG size of output: 3861 [2021-03-12 16:57:16,852 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 5267 DAG size of output: 4817 [2021-03-12 16:57:17,595 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 5890 DAG size of output: 5384 [2021-03-12 16:57:18,709 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 6718 DAG size of output: 6097 [2021-03-12 16:57:19,149 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 9209 DAG size of output: 8440 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown