/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d47b94137d5c7dd60722882962a90fb345e61909-d47b941 [2021-05-03 21:11:40,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-03 21:11:40,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-03 21:11:40,990 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-05-03 21:11:40,991 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-05-03 21:11:40,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-05-03 21:11:40,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-05-03 21:11:40,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-05-03 21:11:41,000 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-05-03 21:11:41,005 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-05-03 21:11:41,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-05-03 21:11:41,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-05-03 21:11:41,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-05-03 21:11:41,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-05-03 21:11:41,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-05-03 21:11:41,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-05-03 21:11:41,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-05-03 21:11:41,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-05-03 21:11:41,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-05-03 21:11:41,021 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-05-03 21:11:41,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-05-03 21:11:41,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-05-03 21:11:41,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-05-03 21:11:41,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-05-03 21:11:41,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-05-03 21:11:41,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-05-03 21:11:41,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-05-03 21:11:41,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-05-03 21:11:41,031 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-05-03 21:11:41,032 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-05-03 21:11:41,032 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-05-03 21:11:41,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-05-03 21:11:41,033 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-05-03 21:11:41,034 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-05-03 21:11:41,034 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-05-03 21:11:41,034 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-05-03 21:11:41,035 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-05-03 21:11:41,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-05-03 21:11:41,035 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-05-03 21:11:41,035 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-05-03 21:11:41,036 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-05-03 21:11:41,036 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-DelaySleepPersistent-NoLbe.epf [2021-05-03 21:11:41,065 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-03 21:11:41,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-03 21:11:41,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-03 21:11:41,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-03 21:11:41,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-03 21:11:41,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-03 21:11:41,068 INFO L138 SettingsManager]: * Use SBE=true [2021-05-03 21:11:41,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-03 21:11:41,069 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-03 21:11:41,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-03 21:11:41,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-03 21:11:41,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-03 21:11:41,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-03 21:11:41,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-03 21:11:41,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-03 21:11:41,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-03 21:11:41,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-03 21:11:41,070 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-03 21:11:41,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-03 21:11:41,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-03 21:11:41,070 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-03 21:11:41,070 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-03 21:11:41,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-03 21:11:41,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-03 21:11:41,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-03 21:11:41,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-03 21:11:41,071 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-03 21:11:41,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-03 21:11:41,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-03 21:11:41,071 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-03 21:11:41,071 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-05-03 21:11:41,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-03 21:11:41,071 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET [2021-05-03 21:11:41,071 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-03 21:11:41,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-03 21:11:41,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-03 21:11:41,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-03 21:11:41,409 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-05-03 21:11:41,412 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-05-03 21:11:41,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-2.wvr.bpl [2021-05-03 21:11:41,413 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-2.wvr.bpl' [2021-05-03 21:11:41,506 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-03 21:11:41,507 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-05-03 21:11:41,510 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-03 21:11:41,510 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-03 21:11:41,510 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-03 21:11:41,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:11:41" (1/1) ... [2021-05-03 21:11:41,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:11:41" (1/1) ... [2021-05-03 21:11:41,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-03 21:11:41,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-03 21:11:41,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-03 21:11:41,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-03 21:11:41,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:11:41" (1/1) ... [2021-05-03 21:11:41,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:11:41" (1/1) ... [2021-05-03 21:11:41,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:11:41" (1/1) ... [2021-05-03 21:11:41,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:11:41" (1/1) ... [2021-05-03 21:11:41,539 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:11:41" (1/1) ... [2021-05-03 21:11:41,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:11:41" (1/1) ... [2021-05-03 21:11:41,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:11:41" (1/1) ... [2021-05-03 21:11:41,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-03 21:11:41,542 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-03 21:11:41,542 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-03 21:11:41,542 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-03 21:11:41,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:11:41" (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 [2021-05-03 21:11:41,606 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-05-03 21:11:41,607 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-05-03 21:11:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-05-03 21:11:41,607 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-05-03 21:11:41,607 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-05-03 21:11:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-05-03 21:11:41,607 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-05-03 21:11:41,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-03 21:11:41,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-03 21:11:41,608 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-03 21:11:41,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-03 21:11:41,754 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-05-03 21:11:41,755 WARN L327 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-05-03 21:11:41,756 INFO L202 PluginConnector]: Adding new model unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 09:11:41 BoogieIcfgContainer [2021-05-03 21:11:41,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-03 21:11:41,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-03 21:11:41,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-03 21:11:41,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-03 21:11:41,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:11:41" (1/2) ... [2021-05-03 21:11:41,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77b82c9e and model type unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 09:11:41, skipping insertion in model container [2021-05-03 21:11:41,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 09:11:41" (2/2) ... [2021-05-03 21:11:41,761 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-2.wvr.bpl [2021-05-03 21:11:41,764 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-03 21:11:41,764 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-03 21:11:41,767 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-05-03 21:11:41,767 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-03 21:11:41,805 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-05-03 21:11:41,821 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 [2021-05-03 21:11:41,867 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-05-03 21:11:41,868 INFO L377 AbstractCegarLoop]: Hoare is true [2021-05-03 21:11:41,868 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-03 21:11:41,868 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-03 21:11:41,868 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-03 21:11:41,868 INFO L381 AbstractCegarLoop]: Difference is false [2021-05-03 21:11:41,868 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-03 21:11:41,868 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-03 21:11:41,960 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:41,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:41,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1489504451, now seen corresponding path program 1 times [2021-05-03 21:11:41,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:41,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229289500] [2021-05-03 21:11:41,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:42,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:42,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229289500] [2021-05-03 21:11:42,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-03 21:11:42,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-05-03 21:11:42,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949926912] [2021-05-03 21:11:42,137 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-03 21:11:42,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:42,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-03 21:11:42,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-05-03 21:11:42,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:42,154 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:42,156 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-05-03 21:11:42,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:42,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:42,195 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-03 21:11:42,195 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:42,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:42,198 INFO L82 PathProgramCache]: Analyzing trace with hash -2038182531, now seen corresponding path program 1 times [2021-05-03 21:11:42,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:42,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348205873] [2021-05-03 21:11:42,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:42,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:42,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348205873] [2021-05-03 21:11:42,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854192552] [2021-05-03 21:11:42,264 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 [2021-05-03 21:11:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:42,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 21:11:42,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:42,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-05-03 21:11:42,539 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:11:42,543 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:42,544 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:11:42,544 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-05-03 21:11:42,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:42,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:42,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-05-03 21:11:42,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813556332] [2021-05-03 21:11:42,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-03 21:11:42,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:42,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-03 21:11:42,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-05-03 21:11:42,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:42,577 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:42,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 21:11:42,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:42,577 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:42,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:42,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:42,832 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:42,833 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:42,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:42,833 INFO L82 PathProgramCache]: Analyzing trace with hash 272670723, now seen corresponding path program 2 times [2021-05-03 21:11:42,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:42,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142963809] [2021-05-03 21:11:42,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:42,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:42,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:42,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142963809] [2021-05-03 21:11:42,868 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468192322] [2021-05-03 21:11:42,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:42,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 21:11:42,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:11:42,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-03 21:11:42,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:42,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:42,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2021-05-03 21:11:42,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98723362] [2021-05-03 21:11:42,929 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-05-03 21:11:42,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:42,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-05-03 21:11:42,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-05-03 21:11:42,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:42,930 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:42,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-05-03 21:11:42,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:42,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:42,931 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:42,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:42,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:42,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:43,166 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:43,166 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:43,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:43,167 INFO L82 PathProgramCache]: Analyzing trace with hash 554409746, now seen corresponding path program 1 times [2021-05-03 21:11:43,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:43,167 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690557781] [2021-05-03 21:11:43,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:43,235 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:43,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690557781] [2021-05-03 21:11:43,235 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482812784] [2021-05-03 21:11:43,236 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 [2021-05-03 21:11:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:43,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 20 conjunts are in the unsatisfiable core [2021-05-03 21:11:43,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:43,434 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:43,434 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-05-03 21:11:43,438 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:11:43,439 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:43,440 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:11:43,440 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:15, output treesize:3 [2021-05-03 21:11:43,449 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:43,449 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:43,450 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-05-03 21:11:43,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408389816] [2021-05-03 21:11:43,450 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-03 21:11:43,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:43,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-03 21:11:43,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2021-05-03 21:11:43,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:43,455 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:43,455 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 12 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 21:11:43,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:43,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:43,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:43,455 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:43,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:43,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:43,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:43,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:43,756 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:43,757 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:43,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:43,757 INFO L82 PathProgramCache]: Analyzing trace with hash 786294808, now seen corresponding path program 2 times [2021-05-03 21:11:43,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:43,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066800786] [2021-05-03 21:11:43,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:43,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066800786] [2021-05-03 21:11:43,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918354861] [2021-05-03 21:11:43,836 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 [2021-05-03 21:11:43,856 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 21:11:43,856 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:11:43,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 22 conjunts are in the unsatisfiable core [2021-05-03 21:11:43,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:43,997 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:43,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 19 treesize of output 37 [2021-05-03 21:11:44,023 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:11:44,025 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:44,025 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:11:44,025 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:3 [2021-05-03 21:11:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:44,031 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:44,031 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-05-03 21:11:44,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920816791] [2021-05-03 21:11:44,032 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-05-03 21:11:44,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:44,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-05-03 21:11:44,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-05-03 21:11:44,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:44,034 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:44,034 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 1.7692307692307692) internal successors, (23), 12 states have internal predecessors, (23), 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) [2021-05-03 21:11:44,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:44,034 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:44,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:44,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:44,035 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:44,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:44,312 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:44,313 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:44,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:44,313 INFO L82 PathProgramCache]: Analyzing trace with hash -615202862, now seen corresponding path program 3 times [2021-05-03 21:11:44,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:44,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365983339] [2021-05-03 21:11:44,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:44,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:44,362 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:44,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365983339] [2021-05-03 21:11:44,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633194965] [2021-05-03 21:11:44,363 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 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 [2021-05-03 21:11:44,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-05-03 21:11:44,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:11:44,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 7 conjunts are in the unsatisfiable core [2021-05-03 21:11:44,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:44,433 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:44,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:44,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-05-03 21:11:44,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699763911] [2021-05-03 21:11:44,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-03 21:11:44,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:44,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-03 21:11:44,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-05-03 21:11:44,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:44,434 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:44,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 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) [2021-05-03 21:11:44,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:44,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:44,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:44,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:44,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:44,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:44,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:44,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:44,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:44,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:44,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:44,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:44,720 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:44,721 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:44,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:44,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1199867613, now seen corresponding path program 4 times [2021-05-03 21:11:44,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:44,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [197250876] [2021-05-03 21:11:44,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:44,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:44,807 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:44,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [197250876] [2021-05-03 21:11:44,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78422016] [2021-05-03 21:11:44,808 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-03 21:11:44,845 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 21:11:44,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:11:44,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2021-05-03 21:11:44,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:45,035 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:45,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 23 treesize of output 64 [2021-05-03 21:11:45,084 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:11:45,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:45,085 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:11:45,085 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:23, output treesize:3 [2021-05-03 21:11:45,090 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:45,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:45,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-05-03 21:11:45,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207974555] [2021-05-03 21:11:45,092 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-03 21:11:45,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:45,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-03 21:11:45,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=296, Unknown=0, NotChecked=0, Total=342 [2021-05-03 21:11:45,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:45,093 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:45,093 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 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) [2021-05-03 21:11:45,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:45,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:45,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:45,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:45,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:45,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:45,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:45,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:45,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:45,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:45,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:45,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:45,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:45,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:45,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-05-03 21:11:45,468 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:45,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:45,468 INFO L82 PathProgramCache]: Analyzing trace with hash 580602461, now seen corresponding path program 5 times [2021-05-03 21:11:45,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:45,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20782819] [2021-05-03 21:11:45,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:45,570 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:45,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20782819] [2021-05-03 21:11:45,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990869850] [2021-05-03 21:11:45,571 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 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 [2021-05-03 21:11:45,594 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-05-03 21:11:45,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:11:45,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 31 conjunts are in the unsatisfiable core [2021-05-03 21:11:45,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:45,809 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:45,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 27 treesize of output 99 [2021-05-03 21:11:45,919 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:11:45,920 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:45,921 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:11:45,921 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:27, output treesize:3 [2021-05-03 21:11:45,926 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:45,926 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:45,926 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-05-03 21:11:45,927 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969348850] [2021-05-03 21:11:45,927 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-05-03 21:11:45,927 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:45,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-05-03 21:11:45,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=298, Unknown=0, NotChecked=0, Total=342 [2021-05-03 21:11:45,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:45,928 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:45,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 18 states have internal predecessors, (29), 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) [2021-05-03 21:11:45,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:45,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:45,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:45,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:45,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:45,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:45,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:45,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:46,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:46,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:46,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:46,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:46,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:46,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:46,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:46,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:46,273 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-05-03 21:11:46,273 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:46,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:46,273 INFO L82 PathProgramCache]: Analyzing trace with hash -59400093, now seen corresponding path program 6 times [2021-05-03 21:11:46,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:46,274 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824061244] [2021-05-03 21:11:46,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:46,343 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:46,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824061244] [2021-05-03 21:11:46,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657888576] [2021-05-03 21:11:46,343 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 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 [2021-05-03 21:11:46,365 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-05-03 21:11:46,365 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:11:46,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 10 conjunts are in the unsatisfiable core [2021-05-03 21:11:46,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:46,412 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:46,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:46,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 11 [2021-05-03 21:11:46,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097358243] [2021-05-03 21:11:46,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-05-03 21:11:46,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:46,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-05-03 21:11:46,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-05-03 21:11:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:46,413 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:46,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 1.75) internal successors, (21), 11 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 21:11:46,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:46,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:46,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:46,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:46,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:46,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:46,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:46,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:46,414 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:46,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:46,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:46,735 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-05-03 21:11:46,735 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:46,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:46,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1149850958, now seen corresponding path program 7 times [2021-05-03 21:11:46,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:46,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256804752] [2021-05-03 21:11:46,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:46,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256804752] [2021-05-03 21:11:46,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167789984] [2021-05-03 21:11:46,850 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 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 [2021-05-03 21:11:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:46,873 WARN L261 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 38 conjunts are in the unsatisfiable core [2021-05-03 21:11:46,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:47,146 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:47,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 31 treesize of output 142 [2021-05-03 21:11:47,300 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:11:47,301 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:47,301 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:11:47,301 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:3 [2021-05-03 21:11:47,307 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:47,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:47,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-05-03 21:11:47,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735795073] [2021-05-03 21:11:47,309 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 21:11:47,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:47,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 21:11:47,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=539, Unknown=0, NotChecked=0, Total=600 [2021-05-03 21:11:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:47,310 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:47,310 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.32) internal successors, (33), 24 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) [2021-05-03 21:11:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:47,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:11:47,814 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-05-03 21:11:47,815 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:47,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:47,815 INFO L82 PathProgramCache]: Analyzing trace with hash -2011982024, now seen corresponding path program 8 times [2021-05-03 21:11:47,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:47,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798693229] [2021-05-03 21:11:47,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:47,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:48,035 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:48,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798693229] [2021-05-03 21:11:48,036 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157433784] [2021-05-03 21:11:48,036 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-05-03 21:11:48,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 21:11:48,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:11:48,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 40 conjunts are in the unsatisfiable core [2021-05-03 21:11:48,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:48,415 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:48,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 35 treesize of output 193 [2021-05-03 21:11:48,706 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:11:48,707 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:48,708 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:11:48,708 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:35, output treesize:3 [2021-05-03 21:11:48,712 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:48,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:48,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-05-03 21:11:48,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347935505] [2021-05-03 21:11:48,713 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-05-03 21:11:48,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:48,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-05-03 21:11:48,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2021-05-03 21:11:48,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:48,714 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:48,714 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 1.4) internal successors, (35), 24 states have internal predecessors, (35), 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) [2021-05-03 21:11:48,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:48,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:48,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:48,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:48,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:48,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:48,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:48,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:48,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:48,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:11:48,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:11:48,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:49,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable109 [2021-05-03 21:11:49,102 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:49,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:49,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1326726002, now seen corresponding path program 9 times [2021-05-03 21:11:49,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:49,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566460487] [2021-05-03 21:11:49,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:49,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:49,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566460487] [2021-05-03 21:11:49,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1850834442] [2021-05-03 21:11:49,180 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:49,202 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-05-03 21:11:49,202 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:11:49,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2021-05-03 21:11:49,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 28 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:49,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:49,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 14 [2021-05-03 21:11:49,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708514076] [2021-05-03 21:11:49,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-05-03 21:11:49,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:49,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-05-03 21:11:49,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-05-03 21:11:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:49,269 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:49,269 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 1.6) internal successors, (24), 14 states have internal predecessors, (24), 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) [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:49,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:11:49,606 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:49,606 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:49,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:49,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1129614973, now seen corresponding path program 10 times [2021-05-03 21:11:49,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:49,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823685222] [2021-05-03 21:11:49,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:49,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823685222] [2021-05-03 21:11:49,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985222398] [2021-05-03 21:11:49,764 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:49,785 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 21:11:49,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:11:49,786 WARN L261 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 47 conjunts are in the unsatisfiable core [2021-05-03 21:11:49,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:50,313 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-05-03 21:11:50,319 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:50,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 39 treesize of output 252 [2021-05-03 21:11:50,997 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:11:50,998 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:50,999 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:11:50,999 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:39, output treesize:3 [2021-05-03 21:11:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:51,004 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:51,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-05-03 21:11:51,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700058076] [2021-05-03 21:11:51,004 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-03 21:11:51,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:51,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-03 21:11:51,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=854, Unknown=0, NotChecked=0, Total=930 [2021-05-03 21:11:51,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:51,005 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:51,006 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 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) [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:11:51,006 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:51,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:11:51,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:11:51,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable198 [2021-05-03 21:11:51,513 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:51,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:51,514 INFO L82 PathProgramCache]: Analyzing trace with hash -971772099, now seen corresponding path program 11 times [2021-05-03 21:11:51,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:51,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925730788] [2021-05-03 21:11:51,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:51,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:51,693 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:51,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925730788] [2021-05-03 21:11:51,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467966879] [2021-05-03 21:11:51,693 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:51,716 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-05-03 21:11:51,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:11:51,717 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 49 conjunts are in the unsatisfiable core [2021-05-03 21:11:51,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:52,272 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-05-03 21:11:52,273 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:52,273 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 43 treesize of output 319 [2021-05-03 21:11:53,916 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:11:53,917 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:53,918 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:11:53,918 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:43, output treesize:3 [2021-05-03 21:11:53,922 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:53,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:53,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-05-03 21:11:53,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019225958] [2021-05-03 21:11:53,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-05-03 21:11:53,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:53,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-05-03 21:11:53,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-05-03 21:11:53,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:53,926 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:53,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:11:53,926 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:54,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:54,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:54,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:54,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:54,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:11:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:11:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:11:54,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:11:54,458 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable449,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:54,458 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:54,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:54,472 INFO L82 PathProgramCache]: Analyzing trace with hash -373610301, now seen corresponding path program 12 times [2021-05-03 21:11:54,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:54,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181204016] [2021-05-03 21:11:54,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:54,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 36 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:54,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181204016] [2021-05-03 21:11:54,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017825051] [2021-05-03 21:11:54,591 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:54,623 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-05-03 21:11:54,623 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:11:54,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-05-03 21:11:54,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:54,682 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 45 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:54,682 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:11:54,682 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-05-03 21:11:54,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673879423] [2021-05-03 21:11:54,684 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-05-03 21:11:54,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:11:54,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-05-03 21:11:54,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2021-05-03 21:11:54,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:54,685 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:11:54,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 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) [2021-05-03 21:11:54,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:54,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:54,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:54,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:54,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:54,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:54,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:54,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:54,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:54,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:11:54,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:54,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:11:54,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:11:54,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:11:54,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:11:54,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:11:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:11:55,120 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable970 [2021-05-03 21:11:55,121 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:11:55,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:11:55,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1994534482, now seen corresponding path program 13 times [2021-05-03 21:11:55,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:11:55,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036677286] [2021-05-03 21:11:55,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:11:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:55,540 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:11:55,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036677286] [2021-05-03 21:11:55,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78556432] [2021-05-03 21:11:55,541 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:11:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:11:55,573 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 56 conjunts are in the unsatisfiable core [2021-05-03 21:11:55,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:11:56,397 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 201 [2021-05-03 21:11:56,398 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:11:56,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 19 new quantified variables, introduced 45 case distinctions, treesize of input 47 treesize of output 394 [2021-05-03 21:12:00,253 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 1085 DAG size of output: 603 [2021-05-03 21:12:00,404 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1478 DAG size of output: 701 [2021-05-03 21:12:00,543 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 1478 DAG size of output: 701 [2021-05-03 21:12:00,689 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1483 DAG size of output: 698 [2021-05-03 21:12:00,840 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 700 DAG size of output: 888 [2021-05-03 21:12:01,516 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 606 [2021-05-03 21:12:04,654 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 2257 DAG size of output: 1208 [2021-05-03 21:12:04,812 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 2257 DAG size of output: 1208 [2021-05-03 21:12:04,977 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 2259 DAG size of output: 1208 [2021-05-03 21:12:05,627 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:12:05,629 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:12:05,629 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:12:05,629 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:47, output treesize:3 [2021-05-03 21:12:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:12:05,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:12:05,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-05-03 21:12:05,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498379898] [2021-05-03 21:12:05,634 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-05-03 21:12:05,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:12:05,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-05-03 21:12:05,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1241, Unknown=0, NotChecked=0, Total=1332 [2021-05-03 21:12:05,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:12:05,635 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:12:05,635 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 36 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) [2021-05-03 21:12:05,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:12:05,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:12:05,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:12:05,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:12:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:12:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:12:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:12:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:12:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:12:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:12:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:12:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:12:06,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:12:06,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:12:06,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:12:06,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:12:06,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:12:06,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:12:06,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:12:06,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 21:12:06,261 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable971 [2021-05-03 21:12:06,261 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:12:06,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:12:06,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1302404696, now seen corresponding path program 14 times [2021-05-03 21:12:06,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:12:06,262 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952117215] [2021-05-03 21:12:06,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:12:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:12:06,493 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:12:06,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952117215] [2021-05-03 21:12:06,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460641755] [2021-05-03 21:12:06,493 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:12:06,518 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-05-03 21:12:06,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:12:06,519 WARN L261 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 58 conjunts are in the unsatisfiable core [2021-05-03 21:12:06,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:12:07,310 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2021-05-03 21:12:07,311 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:12:07,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 51 treesize of output 477 [2021-05-03 21:12:09,197 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 826 DAG size of output: 985 [2021-05-03 21:12:12,540 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 420 [2021-05-03 21:12:14,907 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1011 DAG size of output: 681 [2021-05-03 21:12:16,826 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 849 DAG size of output: 705 [2021-05-03 21:12:17,081 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 1470 DAG size of output: 1188 [2021-05-03 21:12:17,363 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 1619 DAG size of output: 1227 [2021-05-03 21:12:17,718 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 2285 DAG size of output: 1225 [2021-05-03 21:12:18,131 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 2817 DAG size of output: 1738 [2021-05-03 21:12:20,035 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 3264 DAG size of output: 2055 [2021-05-03 21:12:20,599 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 3617 DAG size of output: 2277 [2021-05-03 21:12:23,055 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1039 DAG size of output: 765 [2021-05-03 21:12:24,957 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 775 [2021-05-03 21:12:25,208 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 1491 DAG size of output: 1304 [2021-05-03 21:12:28,094 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 2089 DAG size of output: 1539 [2021-05-03 21:12:28,512 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 2213 DAG size of output: 1647 [2021-05-03 21:12:29,453 WARN L205 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 2674 DAG size of output: 1767 [2021-05-03 21:12:29,945 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 3209 DAG size of output: 2284 [2021-05-03 21:12:30,510 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 3555 DAG size of output: 2587 [2021-05-03 21:12:33,316 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 763 [2021-05-03 21:12:33,458 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1077 DAG size of output: 756 [2021-05-03 21:12:33,608 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1098 DAG size of output: 774 [2021-05-03 21:12:34,337 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 4497 DAG size of output: 3222 [2021-05-03 21:12:35,651 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 6099 DAG size of output: 4037 [2021-05-03 21:12:37,073 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 6527 DAG size of output: 4178 [2021-05-03 21:12:39,938 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 7214 DAG size of output: 4671 [2021-05-03 21:12:41,569 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 7644 DAG size of output: 5009 [2021-05-03 21:12:43,177 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 7644 DAG size of output: 5009 [2021-05-03 21:12:44,907 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 7657 DAG size of output: 5022 [2021-05-03 21:12:46,920 WARN L205 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 5024 DAG size of output: 6951 [2021-05-03 21:12:48,881 WARN L205 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 4225 DAG size of output: 5817 [2021-05-03 21:12:49,978 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 3936 DAG size of output: 3639 [2021-05-03 21:12:51,798 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 3441 DAG size of output: 4915 [2021-05-03 21:12:52,836 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 3369 DAG size of output: 3400 [2021-05-03 21:12:54,662 WARN L205 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 3164 DAG size of output: 4663 [2021-05-03 21:12:55,510 WARN L205 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 2817 DAG size of output: 2759 [2021-05-03 21:12:57,391 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 2568 DAG size of output: 3483 [2021-05-03 21:12:58,507 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 2279 DAG size of output: 3278 [2021-05-03 21:12:58,907 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 1929 DAG size of output: 1913 [2021-05-03 21:12:59,252 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 1754 DAG size of output: 1754 [2021-05-03 21:12:59,592 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 1642 DAG size of output: 1642 [2021-05-03 21:12:59,768 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 1347 DAG size of output: 1347 [2021-05-03 21:13:00,522 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 935 [2021-05-03 21:13:00,744 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 818 [2021-05-03 21:13:02,044 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 1006 [2021-05-03 21:13:02,157 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 877 DAG size of output: 877 [2021-05-03 21:13:03,604 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1715 DAG size of output: 767 [2021-05-03 21:13:04,099 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 2020 DAG size of output: 916 [2021-05-03 21:13:04,270 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 2176 DAG size of output: 1030 [2021-05-03 21:13:04,846 WARN L205 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 2193 DAG size of output: 2186 [2021-05-03 21:13:05,382 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 2032 DAG size of output: 2032 [2021-05-03 21:13:06,036 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 1930 DAG size of output: 1930 [2021-05-03 21:13:06,279 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 1241 DAG size of output: 1241 [2021-05-03 21:13:06,466 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 1080 DAG size of output: 1080 [2021-05-03 21:13:06,627 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 844 DAG size of output: 844 [2021-05-03 21:13:06,760 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 674 DAG size of output: 674 [2021-05-03 21:13:08,445 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 1545 DAG size of output: 1545 [2021-05-03 21:13:08,646 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 1152 [2021-05-03 21:13:08,969 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 1005 DAG size of output: 1005 [2021-05-03 21:13:09,280 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 835 DAG size of output: 835 [2021-05-03 21:13:09,416 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 814 DAG size of output: 814 [2021-05-03 21:13:09,566 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 769 [2021-05-03 21:13:11,232 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 1954 DAG size of output: 803 [2021-05-03 21:13:11,418 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 2119 DAG size of output: 870 [2021-05-03 21:13:11,607 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 2270 DAG size of output: 981 [2021-05-03 21:13:11,972 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 3632 DAG size of output: 1557 [2021-05-03 21:13:12,423 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 1827 DAG size of output: 1803 [2021-05-03 21:13:13,160 WARN L205 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 1697 DAG size of output: 2477 [2021-05-03 21:13:13,387 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 1218 DAG size of output: 1186 [2021-05-03 21:13:13,496 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 772 DAG size of output: 772 [2021-05-03 21:13:14,637 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 980 DAG size of output: 980 [2021-05-03 21:13:16,517 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 1632 DAG size of output: 1621 [2021-05-03 21:13:16,695 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 1085 DAG size of output: 1085 [2021-05-03 21:13:16,985 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 955 DAG size of output: 955 [2021-05-03 21:13:17,136 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 775 DAG size of output: 775 [2021-05-03 21:13:17,249 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 640 DAG size of output: 640 [2021-05-03 21:13:18,597 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 1308 DAG size of output: 1304 [2021-05-03 21:13:18,763 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 1001 DAG size of output: 1001 [2021-05-03 21:13:19,045 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 885 DAG size of output: 885 [2021-05-03 21:13:19,336 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 750 DAG size of output: 750 [2021-05-03 21:13:19,468 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 730 DAG size of output: 730 [2021-05-03 21:13:19,584 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 705 DAG size of output: 705 [2021-05-03 21:13:20,915 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1579 DAG size of output: 791 [2021-05-03 21:13:21,163 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 2376 DAG size of output: 1159 [2021-05-03 21:13:21,849 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 2677 DAG size of output: 1277 [2021-05-03 21:13:22,531 WARN L205 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 5640 DAG size of output: 2351 [2021-05-03 21:13:23,236 WARN L205 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 5962 DAG size of output: 2552 [2021-05-03 21:13:24,502 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 8298 DAG size of output: 3947 [2021-05-03 21:13:24,655 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 642 [2021-05-03 21:13:26,599 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1301 DAG size of output: 820 [2021-05-03 21:13:27,997 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 9172 DAG size of output: 4422 [2021-05-03 21:13:29,350 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 10737 DAG size of output: 3616 [2021-05-03 21:13:30,631 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 10966 DAG size of output: 3871 [2021-05-03 21:13:32,123 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 3550 DAG size of output: 4917 [2021-05-03 21:13:32,973 WARN L205 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 3465 DAG size of output: 3191 [2021-05-03 21:13:33,789 WARN L205 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 2997 DAG size of output: 2884 [2021-05-03 21:13:36,364 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 1381 DAG size of output: 930 [2021-05-03 21:13:36,522 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1601 DAG size of output: 1074 [2021-05-03 21:13:37,805 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 2633 DAG size of output: 3806 [2021-05-03 21:13:38,770 WARN L205 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 2350 DAG size of output: 3155 [2021-05-03 21:13:39,211 WARN L205 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 2147 DAG size of output: 2139 [2021-05-03 21:13:40,509 WARN L205 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 1972 DAG size of output: 2870 [2021-05-03 21:13:40,835 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 1715 DAG size of output: 1715 [2021-05-03 21:13:41,103 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 1575 DAG size of output: 1575 [2021-05-03 21:13:41,651 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 1480 DAG size of output: 1480 [2021-05-03 21:13:41,777 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 879 DAG size of output: 879 [2021-05-03 21:13:42,975 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 1182 DAG size of output: 1182 [2021-05-03 21:13:44,931 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 1579 DAG size of output: 787 [2021-05-03 21:13:45,094 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1781 DAG size of output: 919 [2021-05-03 21:13:45,249 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1920 DAG size of output: 1017 [2021-05-03 21:13:45,656 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 1924 DAG size of output: 1918 [2021-05-03 21:13:46,061 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 1783 [2021-05-03 21:13:46,508 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 1697 DAG size of output: 1697 [2021-05-03 21:13:46,666 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 1040 DAG size of output: 1040 [2021-05-03 21:13:46,797 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 882 DAG size of output: 882 [2021-05-03 21:13:46,930 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 726 [2021-05-03 21:13:48,332 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 1330 DAG size of output: 1330 [2021-05-03 21:13:48,971 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 1035 [2021-05-03 21:13:49,119 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 886 [2021-05-03 21:13:50,656 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1748 DAG size of output: 784 [2021-05-03 21:13:50,808 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1833 DAG size of output: 843 [2021-05-03 21:13:50,973 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 1967 DAG size of output: 938 [2021-05-03 21:13:51,319 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 3166 DAG size of output: 1555 [2021-05-03 21:13:51,677 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 3445 DAG size of output: 1732 [2021-05-03 21:13:52,000 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 1603 DAG size of output: 1589 [2021-05-03 21:13:52,310 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 1456 DAG size of output: 1452 [2021-05-03 21:13:52,865 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 1367 DAG size of output: 1367 [2021-05-03 21:13:52,984 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 871 DAG size of output: 871 [2021-05-03 21:13:55,006 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1081 DAG size of output: 1081 [2021-05-03 21:13:55,122 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 828 DAG size of output: 828 [2021-05-03 21:13:55,517 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 581 [2021-05-03 21:13:57,651 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 1732 DAG size of output: 1016 [2021-05-03 21:13:57,867 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 1893 DAG size of output: 1094 [2021-05-03 21:13:58,670 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 2173 DAG size of output: 1309 [2021-05-03 21:13:59,285 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 5017 DAG size of output: 2559 [2021-05-03 21:14:00,337 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 7041 DAG size of output: 3929 [2021-05-03 21:14:01,584 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 8301 DAG size of output: 4690 [2021-05-03 21:14:02,939 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 8530 DAG size of output: 4936 [2021-05-03 21:14:04,066 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 10374 DAG size of output: 3975 [2021-05-03 21:14:06,545 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 19095 DAG size of output: 6530 [2021-05-03 21:14:09,254 WARN L205 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 22145 DAG size of output: 6652 [2021-05-03 21:14:11,937 WARN L205 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 22145 DAG size of output: 6652 [2021-05-03 21:14:14,653 WARN L205 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 22154 DAG size of output: 6661 [2021-05-03 21:14:16,000 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 6658 DAG size of output: 6140 [2021-05-03 21:14:17,076 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 6142 DAG size of output: 4499 [2021-05-03 21:14:17,689 WARN L205 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 4127 DAG size of output: 2597 [2021-05-03 21:14:18,141 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 2592 DAG size of output: 2540 [2021-05-03 21:14:18,571 WARN L205 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 1698 DAG size of output: 2252 [2021-05-03 21:14:18,953 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 1634 DAG size of output: 1837 [2021-05-03 21:14:19,070 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1050 DAG size of output: 502 [2021-05-03 21:14:20,473 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1183 DAG size of output: 777 [2021-05-03 21:14:21,758 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1218 DAG size of output: 743 [2021-05-03 21:14:22,289 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 1862 DAG size of output: 882 [2021-05-03 21:14:22,467 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 1868 DAG size of output: 888 [2021-05-03 21:14:22,654 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 2313 DAG size of output: 1037 [2021-05-03 21:14:22,829 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 2313 DAG size of output: 1037 [2021-05-03 21:14:23,155 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 2320 DAG size of output: 1387 [2021-05-03 21:14:24,341 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:14:24,342 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:14:24,343 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:14:24,343 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:51, output treesize:3 [2021-05-03 21:14:24,348 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:14:24,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:14:24,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-05-03 21:14:24,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890675792] [2021-05-03 21:14:24,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-05-03 21:14:24,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:14:24,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-05-03 21:14:24,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1243, Unknown=0, NotChecked=0, Total=1332 [2021-05-03 21:14:24,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:14:24,349 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:14:24,349 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 36 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) [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-05-03 21:14:24,350 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:14:24,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 21:14:24,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:14:25,011 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2766 [2021-05-03 21:14:25,011 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:14:25,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:14:25,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1321217810, now seen corresponding path program 15 times [2021-05-03 21:14:25,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:14:25,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153932515] [2021-05-03 21:14:25,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:14:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:14:25,250 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 55 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:14:25,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153932515] [2021-05-03 21:14:25,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1928844859] [2021-05-03 21:14:25,251 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:14:25,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-05-03 21:14:25,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:14:25,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 19 conjunts are in the unsatisfiable core [2021-05-03 21:14:25,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:14:25,371 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 66 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:14:25,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:14:25,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 20 [2021-05-03 21:14:25,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91623408] [2021-05-03 21:14:25,371 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-05-03 21:14:25,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:14:25,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-05-03 21:14:25,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=299, Unknown=0, NotChecked=0, Total=420 [2021-05-03 21:14:25,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:14:25,372 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:14:25,372 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 1.4285714285714286) internal successors, (30), 20 states have internal predecessors, (30), 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) [2021-05-03 21:14:25,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:14:25,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:14:25,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:14:25,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:14:25,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:14:25,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:14:25,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:14:25,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:14:25,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:14:25,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:14:25,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:14:25,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:14:25,373 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:14:25,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:14:25,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:14:25,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-05-03 21:14:25,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:14:25,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:14:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:14:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:14:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:14:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:14:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 21:14:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:14:25,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 21:14:25,880 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18745,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:14:25,881 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:14:25,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:14:25,881 INFO L82 PathProgramCache]: Analyzing trace with hash -1300368925, now seen corresponding path program 16 times [2021-05-03 21:14:25,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:14:25,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355922617] [2021-05-03 21:14:25,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:14:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:14:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:14:26,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355922617] [2021-05-03 21:14:26,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118515082] [2021-05-03 21:14:26,216 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:14:26,242 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-05-03 21:14:26,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:14:26,243 WARN L261 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 65 conjunts are in the unsatisfiable core [2021-05-03 21:14:26,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:14:27,359 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-05-03 21:14:27,360 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:14:27,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 23 new quantified variables, introduced 66 case distinctions, treesize of input 55 treesize of output 568 [2021-05-03 21:14:29,898 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1471 DAG size of output: 1189 [2021-05-03 21:14:30,051 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1495 DAG size of output: 1211 [2021-05-03 21:14:30,168 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1495 DAG size of output: 1211 [2021-05-03 21:14:30,297 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1514 DAG size of output: 1230 [2021-05-03 21:14:30,500 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 1232 DAG size of output: 1717 [2021-05-03 21:14:30,696 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 1177 DAG size of output: 1510 [2021-05-03 21:14:30,921 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 1204 [2021-05-03 21:14:31,104 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 1038 DAG size of output: 1236 [2021-05-03 21:14:31,217 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1033 DAG size of output: 1171 [2021-05-03 21:14:32,911 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 668 DAG size of output: 553 [2021-05-03 21:14:33,236 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1003 DAG size of output: 1339 [2021-05-03 21:14:35,446 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1104 DAG size of output: 769 [2021-05-03 21:14:39,063 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 818 DAG size of output: 829 [2021-05-03 21:14:39,230 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 1071 DAG size of output: 856 [2021-05-03 21:14:39,448 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 1525 DAG size of output: 1167 [2021-05-03 21:14:39,802 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 2199 DAG size of output: 1680 [2021-05-03 21:14:40,209 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 2294 DAG size of output: 1772 [2021-05-03 21:14:40,754 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 2794 DAG size of output: 2181 [2021-05-03 21:14:41,362 WARN L205 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 2795 DAG size of output: 2171 [2021-05-03 21:14:43,850 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 898 [2021-05-03 21:14:44,053 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1165 DAG size of output: 996 [2021-05-03 21:14:45,238 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 1591 DAG size of output: 1311 [2021-05-03 21:14:45,458 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 1594 DAG size of output: 1314 [2021-05-03 21:14:46,205 WARN L205 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 4029 DAG size of output: 2945 [2021-05-03 21:14:47,812 WARN L205 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 4493 DAG size of output: 3243 [2021-05-03 21:14:48,020 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 1110 DAG size of output: 1289 [2021-05-03 21:14:48,264 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 1069 DAG size of output: 1287 [2021-05-03 21:14:48,460 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1033 DAG size of output: 1165 [2021-05-03 21:14:50,320 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 983 [2021-05-03 21:14:50,474 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1031 DAG size of output: 1370 [2021-05-03 21:14:50,640 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 1027 DAG size of output: 1349 [2021-05-03 21:14:50,798 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 934 DAG size of output: 1225 [2021-05-03 21:14:54,288 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 1479 DAG size of output: 1257 [2021-05-03 21:14:56,483 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 2040 DAG size of output: 1719 [2021-05-03 21:14:56,840 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 2502 DAG size of output: 2129 [2021-05-03 21:14:57,268 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 3048 DAG size of output: 2575 [2021-05-03 21:14:57,787 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 3439 DAG size of output: 3068 [2021-05-03 21:14:58,492 WARN L205 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 4191 DAG size of output: 3792 [2021-05-03 21:14:59,395 WARN L205 SmtUtils]: Spent 706.00 ms on a formula simplification. DAG size of input: 4415 DAG size of output: 3979 [2021-05-03 21:15:00,174 WARN L205 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 4904 DAG size of output: 4421 [2021-05-03 21:15:01,439 WARN L205 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 5137 DAG size of output: 4614 [2021-05-03 21:15:04,038 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 986 DAG size of output: 704 [2021-05-03 21:15:04,166 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1353 DAG size of output: 981 [2021-05-03 21:15:05,611 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 1858 DAG size of output: 1354 [2021-05-03 21:15:05,864 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 2129 DAG size of output: 1573 [2021-05-03 21:15:06,564 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 2353 DAG size of output: 1744 [2021-05-03 21:15:07,673 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 6896 DAG size of output: 5346 [2021-05-03 21:15:09,638 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 10593 DAG size of output: 7527 [2021-05-03 21:15:09,890 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 1226 DAG size of output: 1612 [2021-05-03 21:15:10,042 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1151 DAG size of output: 1338 [2021-05-03 21:15:10,253 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 1358 [2021-05-03 21:15:10,383 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 1129 DAG size of output: 1246 [2021-05-03 21:15:10,558 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 1088 DAG size of output: 1430 [2021-05-03 21:15:10,740 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 1081 DAG size of output: 1381 [2021-05-03 21:15:10,917 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 960 DAG size of output: 1234 [2021-05-03 21:15:11,097 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 953 DAG size of output: 1239 [2021-05-03 21:15:11,292 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 810 DAG size of output: 809 [2021-05-03 21:15:15,441 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 1292 DAG size of output: 1310 [2021-05-03 21:15:15,610 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 1494 DAG size of output: 1343 [2021-05-03 21:15:15,858 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 1871 DAG size of output: 1621 [2021-05-03 21:15:16,131 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 1890 DAG size of output: 1640 [2021-05-03 21:15:16,460 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1680 [2021-05-03 21:15:16,670 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 785 DAG size of output: 889 [2021-05-03 21:15:20,595 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 1144 DAG size of output: 828 [2021-05-03 21:15:20,741 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1173 DAG size of output: 857 [2021-05-03 21:15:20,896 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1196 DAG size of output: 880 [2021-05-03 21:15:21,113 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 1709 DAG size of output: 1372 [2021-05-03 21:15:21,623 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 3161 DAG size of output: 2670 [2021-05-03 21:15:22,221 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 3634 DAG size of output: 3105 [2021-05-03 21:15:22,897 WARN L205 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 4193 DAG size of output: 3539 [2021-05-03 21:15:23,663 WARN L205 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 4712 DAG size of output: 4050 [2021-05-03 21:15:26,016 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 647 DAG size of output: 637 [2021-05-03 21:15:26,697 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 1272 DAG size of output: 1413 [2021-05-03 21:15:26,910 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 1445 DAG size of output: 1584 [2021-05-03 21:15:27,170 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 1621 DAG size of output: 1706 [2021-05-03 21:15:27,439 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 1823 DAG size of output: 1886 [2021-05-03 21:15:28,528 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 6186 DAG size of output: 5607 [2021-05-03 21:15:29,732 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 6778 DAG size of output: 6039 [2021-05-03 21:15:30,295 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 588 DAG size of output: 756 [2021-05-03 21:15:33,320 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1114 DAG size of output: 936 [2021-05-03 21:15:33,463 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1246 DAG size of output: 991 [2021-05-03 21:15:33,617 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 1393 DAG size of output: 1032 [2021-05-03 21:15:33,819 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 1781 DAG size of output: 1323 [2021-05-03 21:15:34,068 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 2049 DAG size of output: 1480 [2021-05-03 21:15:35,741 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 2631 DAG size of output: 1918 [2021-05-03 21:15:36,322 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 2855 DAG size of output: 2044 [2021-05-03 21:15:36,691 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 2955 DAG size of output: 2138 [2021-05-03 21:15:37,109 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 3247 DAG size of output: 2348 [2021-05-03 21:15:38,672 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 9320 DAG size of output: 7109 [2021-05-03 21:15:38,861 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 1144 DAG size of output: 1285 [2021-05-03 21:15:39,119 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 1091 DAG size of output: 1291 [2021-05-03 21:15:39,256 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 1086 DAG size of output: 1231 [2021-05-03 21:15:40,737 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 804 DAG size of output: 771 [2021-05-03 21:15:40,901 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 882 DAG size of output: 834 [2021-05-03 21:15:41,075 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 1083 DAG size of output: 1458 [2021-05-03 21:15:43,115 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 799 DAG size of output: 849 [2021-05-03 21:15:43,237 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1040 DAG size of output: 885 [2021-05-03 21:15:44,418 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 1484 DAG size of output: 1155 [2021-05-03 21:15:44,615 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 1534 DAG size of output: 1205 [2021-05-03 21:15:47,138 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 976 DAG size of output: 973 [2021-05-03 21:15:47,352 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 1117 DAG size of output: 1125 [2021-05-03 21:15:47,525 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 1381 DAG size of output: 1158 [2021-05-03 21:15:49,138 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 654 DAG size of output: 683 [2021-05-03 21:15:49,431 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 1969 DAG size of output: 1612 [2021-05-03 21:15:49,732 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 1990 DAG size of output: 1633 [2021-05-03 21:15:50,247 WARN L205 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 2977 DAG size of output: 2504 [2021-05-03 21:15:50,945 WARN L205 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 3664 DAG size of output: 3170 [2021-05-03 21:15:51,622 WARN L205 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 3665 DAG size of output: 3165 [2021-05-03 21:15:52,622 WARN L205 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 3828 DAG size of output: 3307 [2021-05-03 21:15:56,034 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1044 DAG size of output: 977 [2021-05-03 21:15:56,191 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 1066 DAG size of output: 992 [2021-05-03 21:15:59,833 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 1113 DAG size of output: 1107 [2021-05-03 21:16:00,029 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 1135 DAG size of output: 1110 [2021-05-03 21:16:00,272 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 1130 [2021-05-03 21:16:00,687 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 1986 DAG size of output: 1919 [2021-05-03 21:16:01,085 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 2247 DAG size of output: 2053 [2021-05-03 21:16:02,967 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 821 DAG size of output: 676 [2021-05-03 21:16:03,081 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 923 DAG size of output: 679 [2021-05-03 21:16:03,606 WARN L205 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 2959 DAG size of output: 2569 [2021-05-03 21:16:04,200 WARN L205 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 2962 DAG size of output: 2572 [2021-05-03 21:16:05,460 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 6145 DAG size of output: 5049 [2021-05-03 21:16:08,395 WARN L205 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 14298 DAG size of output: 11123 [2021-05-03 21:16:13,403 WARN L205 SmtUtils]: Spent 4.91 s on a formula simplification. DAG size of input: 22836 DAG size of output: 16311 [2021-05-03 21:16:18,302 WARN L205 SmtUtils]: Spent 4.76 s on a formula simplification. DAG size of input: 22836 DAG size of output: 16311 [2021-05-03 21:16:23,752 WARN L205 SmtUtils]: Spent 5.34 s on a formula simplification. DAG size of input: 22851 DAG size of output: 16326 [2021-05-03 21:16:27,370 WARN L205 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 16320 DAG size of output: 16017 [2021-05-03 21:16:32,392 WARN L205 SmtUtils]: Spent 4.87 s on a formula simplification. DAG size of input: 16019 DAG size of output: 17458 [2021-05-03 21:16:34,361 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 8798 DAG size of output: 8842 [2021-05-03 21:16:36,766 WARN L205 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 8433 DAG size of output: 10247 [2021-05-03 21:16:38,309 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 8283 DAG size of output: 8210 [2021-05-03 21:16:38,940 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 4000 DAG size of output: 4000 [2021-05-03 21:16:39,303 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 2400 DAG size of output: 2445 [2021-05-03 21:16:39,596 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 2304 DAG size of output: 2184 [2021-05-03 21:16:39,845 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 1597 DAG size of output: 1573 [2021-05-03 21:16:40,021 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 1546 [2021-05-03 21:16:40,149 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 1251 [2021-05-03 21:16:40,278 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 1070 [2021-05-03 21:16:40,419 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 1070 DAG size of output: 1107 [2021-05-03 21:16:40,528 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 1065 [2021-05-03 21:16:44,235 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 931 DAG size of output: 640 [2021-05-03 21:16:44,355 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 932 DAG size of output: 640 [2021-05-03 21:16:44,977 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 1071 DAG size of output: 680 [2021-05-03 21:16:45,147 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 1413 DAG size of output: 744 [2021-05-03 21:16:45,325 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 1435 DAG size of output: 757 [2021-05-03 21:16:47,395 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 2011 DAG size of output: 1118 [2021-05-03 21:16:47,692 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 2209 DAG size of output: 1310 [2021-05-03 21:16:47,986 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 1869 DAG size of output: 1860 [2021-05-03 21:16:48,222 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 1672 DAG size of output: 1643 [2021-05-03 21:16:48,494 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 1618 DAG size of output: 1596 [2021-05-03 21:16:48,708 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 1594 DAG size of output: 1589 [2021-05-03 21:16:48,820 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 759 [2021-05-03 21:16:51,457 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1179 DAG size of output: 791 [2021-05-03 21:16:51,622 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 983 DAG size of output: 1068 [2021-05-03 21:16:51,741 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 978 DAG size of output: 978 [2021-05-03 21:16:55,151 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1038 DAG size of output: 770 [2021-05-03 21:16:55,297 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1234 DAG size of output: 861 [2021-05-03 21:16:55,471 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 1378 DAG size of output: 995 [2021-05-03 21:16:55,775 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 2380 DAG size of output: 1565 [2021-05-03 21:16:56,079 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 2381 DAG size of output: 1445 [2021-05-03 21:16:56,437 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 2398 DAG size of output: 1442 [2021-05-03 21:16:56,767 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 2557 DAG size of output: 1533 [2021-05-03 21:16:57,382 WARN L205 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 4463 DAG size of output: 2486 [2021-05-03 21:16:58,068 WARN L205 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 4464 DAG size of output: 2437 [2021-05-03 21:16:59,113 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 6866 DAG size of output: 3926 [2021-05-03 21:17:00,264 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 7307 DAG size of output: 3953 [2021-05-03 21:17:02,741 WARN L205 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 18425 DAG size of output: 8255 [2021-05-03 21:17:05,222 WARN L205 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 18425 DAG size of output: 8255 [2021-05-03 21:17:07,782 WARN L205 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 18430 DAG size of output: 8260 [2021-05-03 21:17:08,469 WARN L205 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 3858 DAG size of output: 3615 [2021-05-03 21:17:09,070 WARN L205 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 3588 DAG size of output: 2953 [2021-05-03 21:17:09,486 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 2008 DAG size of output: 2275 [2021-05-03 21:17:09,852 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 1982 DAG size of output: 2118 [2021-05-03 21:17:10,126 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 1947 DAG size of output: 1853 [2021-05-03 21:17:10,439 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 1825 DAG size of output: 1823 [2021-05-03 21:17:10,616 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 1281 DAG size of output: 1281 [2021-05-03 21:17:10,778 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1261 DAG size of output: 1261 [2021-05-03 21:17:10,930 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 1252 DAG size of output: 1252 [2021-05-03 21:17:11,047 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 634 DAG size of output: 723 [2021-05-03 21:17:11,665 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 730 DAG size of output: 773 [2021-05-03 21:17:13,310 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 1448 DAG size of output: 755 [2021-05-03 21:17:13,439 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1899 DAG size of output: 779 [2021-05-03 21:17:13,641 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 2846 DAG size of output: 882 [2021-05-03 21:17:13,803 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 2917 DAG size of output: 883 [2021-05-03 21:17:14,723 WARN L205 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 4647 DAG size of output: 4771 [2021-05-03 21:17:15,265 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 4240 DAG size of output: 2333 [2021-05-03 21:17:15,540 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 1682 DAG size of output: 1686 [2021-05-03 21:17:15,800 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 1624 DAG size of output: 1647 [2021-05-03 21:17:16,021 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 1528 DAG size of output: 1537 [2021-05-03 21:17:16,247 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 1487 DAG size of output: 1537 [2021-05-03 21:17:16,464 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 1468 DAG size of output: 1468 [2021-05-03 21:17:16,593 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 809 DAG size of output: 943 [2021-05-03 21:17:16,787 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 772 DAG size of output: 904 [2021-05-03 21:17:17,958 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 846 DAG size of output: 1149 [2021-05-03 21:17:19,555 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 1781 DAG size of output: 757 [2021-05-03 21:17:19,741 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 2454 DAG size of output: 607 [2021-05-03 21:17:19,951 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 3424 DAG size of output: 1385 [2021-05-03 21:17:20,328 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 6129 DAG size of output: 2118 [2021-05-03 21:17:20,721 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 6129 DAG size of output: 2118 [2021-05-03 21:17:21,150 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 6134 DAG size of output: 2127 [2021-05-03 21:17:21,436 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 2129 DAG size of output: 1963 [2021-05-03 21:17:21,645 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 1913 DAG size of output: 1900 [2021-05-03 21:17:24,223 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1255 DAG size of output: 547 [2021-05-03 21:17:24,461 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 762 DAG size of output: 906 [2021-05-03 21:17:24,586 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 814 [2021-05-03 21:17:27,836 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 1565 DAG size of output: 702 [2021-05-03 21:17:27,947 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 822 DAG size of output: 868 [2021-05-03 21:17:29,295 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 956 DAG size of output: 430 [2021-05-03 21:17:30,084 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 868 [2021-05-03 21:17:30,195 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 607 DAG size of output: 920 [2021-05-03 21:17:30,386 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 832 [2021-05-03 21:17:33,416 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 1294 DAG size of output: 858 [2021-05-03 21:17:33,546 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 1633 DAG size of output: 858 [2021-05-03 21:17:33,711 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 1922 DAG size of output: 965 [2021-05-03 21:17:35,025 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 2577 DAG size of output: 1081 [2021-05-03 21:17:35,321 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 3275 DAG size of output: 1346 [2021-05-03 21:17:35,847 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 5859 DAG size of output: 2418 [2021-05-03 21:17:36,437 WARN L205 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 5945 DAG size of output: 2471 [2021-05-03 21:17:36,990 WARN L205 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 5945 DAG size of output: 2471 [2021-05-03 21:17:37,608 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 5950 DAG size of output: 2476 [2021-05-03 21:17:37,919 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 2476 DAG size of output: 2297 [2021-05-03 21:17:38,235 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 2254 DAG size of output: 1494 [2021-05-03 21:17:38,398 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 963 DAG size of output: 1120 [2021-05-03 21:17:39,497 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1113 DAG size of output: 717 [2021-05-03 21:17:40,393 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 1464 DAG size of output: 962 [2021-05-03 21:17:40,569 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 1489 DAG size of output: 984 [2021-05-03 21:17:40,781 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 1489 DAG size of output: 984 [2021-05-03 21:17:40,962 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 1491 DAG size of output: 987 [2021-05-03 21:17:41,116 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 989 DAG size of output: 1257 [2021-05-03 21:17:41,230 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 809 DAG size of output: 597 [2021-05-03 21:17:41,802 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:17:41,803 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:17:41,804 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:17:41,804 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:55, output treesize:3 [2021-05-03 21:17:41,810 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:17:41,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:17:41,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2021-05-03 21:17:41,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650252854] [2021-05-03 21:17:41,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-05-03 21:17:41,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:17:41,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-05-03 21:17:41,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1700, Unknown=0, NotChecked=0, Total=1806 [2021-05-03 21:17:41,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:17:41,811 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:17:41,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 1.186046511627907) internal successors, (51), 42 states have internal predecessors, (51), 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) [2021-05-03 21:17:41,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:17:41,811 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-03 21:17:41,812 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:17:42,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:17:42,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:17:42,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 21:17:42,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-03 21:17:42,619 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18746,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:17:42,619 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:17:42,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:17:42,620 INFO L82 PathProgramCache]: Analyzing trace with hash -400835555, now seen corresponding path program 17 times [2021-05-03 21:17:42,620 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:17:42,620 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099978838] [2021-05-03 21:17:42,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:17:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:17:42,940 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:17:42,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099978838] [2021-05-03 21:17:42,940 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328990257] [2021-05-03 21:17:42,940 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:17:42,970 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-05-03 21:17:42,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:17:42,972 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 67 conjunts are in the unsatisfiable core [2021-05-03 21:17:42,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:17:44,118 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2021-05-03 21:17:44,118 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:17:44,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 25 new quantified variables, introduced 78 case distinctions, treesize of input 59 treesize of output 667 [2021-05-03 21:17:46,311 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1537 DAG size of output: 1124 [2021-05-03 21:17:49,127 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1954 DAG size of output: 1547 [2021-05-03 21:17:49,272 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 1998 DAG size of output: 1590 [2021-05-03 21:17:49,424 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 2025 DAG size of output: 1617 [2021-05-03 21:17:49,678 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 3337 DAG size of output: 2495 [2021-05-03 21:17:49,976 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 3337 DAG size of output: 2495 [2021-05-03 21:17:50,265 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 3360 DAG size of output: 2518 [2021-05-03 21:17:50,469 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 2509 DAG size of output: 2506 [2021-05-03 21:17:50,722 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 2508 DAG size of output: 2523 [2021-05-03 21:17:50,938 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 2497 DAG size of output: 2494 [2021-05-03 21:17:51,132 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 1589 DAG size of output: 1968 [2021-05-03 21:17:51,272 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 1586 DAG size of output: 1595 [2021-05-03 21:17:51,458 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 1583 DAG size of output: 1663 [2021-05-03 21:17:51,571 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1578 DAG size of output: 1578 [2021-05-03 21:17:51,700 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 1557 DAG size of output: 1557 [2021-05-03 21:17:51,810 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 1552 [2021-05-03 21:17:52,867 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 1510 [2021-05-03 21:17:54,769 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 1494 DAG size of output: 1104 [2021-05-03 21:17:56,270 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 2657 DAG size of output: 1450 [2021-05-03 21:17:56,474 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 3267 DAG size of output: 1895 [2021-05-03 21:17:56,695 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 3290 DAG size of output: 1917 [2021-05-03 21:17:56,926 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 3310 DAG size of output: 1936 [2021-05-03 21:17:57,209 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 3445 DAG size of output: 2035 [2021-05-03 21:17:57,466 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 3487 DAG size of output: 2073 [2021-05-03 21:17:57,760 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 3913 DAG size of output: 2323 [2021-05-03 21:17:57,927 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 1154 DAG size of output: 1549 [2021-05-03 21:17:58,144 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1148 DAG size of output: 1246 [2021-05-03 21:17:58,500 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 1117 DAG size of output: 1161 [2021-05-03 21:18:00,455 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1689 DAG size of output: 984 [2021-05-03 21:18:00,568 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1843 DAG size of output: 1102 [2021-05-03 21:18:00,693 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 1881 DAG size of output: 1136 [2021-05-03 21:18:00,844 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 2316 DAG size of output: 1394 [2021-05-03 21:18:01,293 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 5749 DAG size of output: 3310 [2021-05-03 21:18:01,784 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 5779 DAG size of output: 3337 [2021-05-03 21:18:02,287 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 5779 DAG size of output: 3337 [2021-05-03 21:18:02,915 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 5791 DAG size of output: 3379 [2021-05-03 21:18:03,439 WARN L205 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 3344 DAG size of output: 3420 [2021-05-03 21:18:03,857 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 3280 DAG size of output: 3293 [2021-05-03 21:18:04,210 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 3216 DAG size of output: 3216 [2021-05-03 21:18:04,604 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 3191 DAG size of output: 3115 [2021-05-03 21:18:05,096 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 3087 DAG size of output: 3174 [2021-05-03 21:18:05,377 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 2011 DAG size of output: 1913 [2021-05-03 21:18:05,539 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 1693 [2021-05-03 21:18:07,554 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1004 DAG size of output: 1200 [2021-05-03 21:18:10,592 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 2067 DAG size of output: 912 [2021-05-03 21:18:10,790 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 2374 DAG size of output: 1168 [2021-05-03 21:18:11,105 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 3536 DAG size of output: 2226 [2021-05-03 21:18:11,480 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 3594 DAG size of output: 2268 [2021-05-03 21:18:11,846 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 3621 DAG size of output: 2239 [2021-05-03 21:18:12,228 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 3728 DAG size of output: 2298 [2021-05-03 21:18:12,647 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 3943 DAG size of output: 2495 [2021-05-03 21:18:13,124 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 4030 DAG size of output: 2583 [2021-05-03 21:18:13,570 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 4030 DAG size of output: 2583 [2021-05-03 21:18:14,049 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 4035 DAG size of output: 2581 [2021-05-03 21:18:14,558 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 2583 DAG size of output: 2779 [2021-05-03 21:18:15,105 WARN L205 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 2278 DAG size of output: 3164 [2021-05-03 21:18:15,515 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 1697 DAG size of output: 2269 [2021-05-03 21:18:15,814 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 1451 DAG size of output: 1548 [2021-05-03 21:18:15,952 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1097 DAG size of output: 994 [2021-05-03 21:18:16,495 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 873 DAG size of output: 1198 [2021-05-03 21:18:16,628 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 785 DAG size of output: 999 [2021-05-03 21:18:16,764 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 755 DAG size of output: 1074 [2021-05-03 21:18:19,703 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1336 DAG size of output: 714 [2021-05-03 21:18:19,841 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 1337 DAG size of output: 717 [2021-05-03 21:18:19,979 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1470 DAG size of output: 809 [2021-05-03 21:18:20,197 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 2186 DAG size of output: 1283 [2021-05-03 21:18:20,403 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 1606 DAG size of output: 1604 [2021-05-03 21:18:20,652 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 1539 DAG size of output: 1539 [2021-05-03 21:18:20,811 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 1381 DAG size of output: 1381 [2021-05-03 21:18:21,551 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1324 DAG size of output: 1284 [2021-05-03 21:18:21,804 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 1275 DAG size of output: 1269 [2021-05-03 21:18:21,970 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 941 DAG size of output: 1256 [2021-05-03 21:18:23,569 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 724 DAG size of output: 875 [2021-05-03 21:18:24,976 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 1729 DAG size of output: 979 [2021-05-03 21:18:25,162 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 1761 DAG size of output: 1012 [2021-05-03 21:18:25,366 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 2055 DAG size of output: 1192 [2021-05-03 21:18:25,719 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 2199 DAG size of output: 1322 [2021-05-03 21:18:25,966 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 2262 DAG size of output: 1363 [2021-05-03 21:18:26,436 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 3895 DAG size of output: 2281 [2021-05-03 21:18:26,938 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 2028 DAG size of output: 2639 [2021-05-03 21:18:27,181 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 1660 DAG size of output: 1652 [2021-05-03 21:18:27,376 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 1623 DAG size of output: 1623 [2021-05-03 21:18:27,964 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 1493 DAG size of output: 1601 [2021-05-03 21:18:28,099 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 1135 DAG size of output: 1042 [2021-05-03 21:18:28,275 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 1023 DAG size of output: 1243 [2021-05-03 21:18:28,394 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 885 [2021-05-03 21:18:28,506 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 691 DAG size of output: 924 [2021-05-03 21:18:29,959 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 867 DAG size of output: 1038 [2021-05-03 21:18:30,245 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 751 DAG size of output: 1052 [2021-05-03 21:18:30,356 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 722 DAG size of output: 699 [2021-05-03 21:18:30,484 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 690 DAG size of output: 833 [2021-05-03 21:18:31,973 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 943 DAG size of output: 758 [2021-05-03 21:18:32,295 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 1056 DAG size of output: 809 [2021-05-03 21:18:32,489 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 1766 DAG size of output: 1200 [2021-05-03 21:18:32,709 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 1941 DAG size of output: 1296 [2021-05-03 21:18:32,942 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 1967 DAG size of output: 1313 [2021-05-03 21:18:33,201 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 1954 DAG size of output: 1952 [2021-05-03 21:18:33,623 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 1885 DAG size of output: 2090 [2021-05-03 21:18:33,794 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 1388 DAG size of output: 1370 [2021-05-03 21:18:34,116 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 1250 DAG size of output: 1248 [2021-05-03 21:18:34,539 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 1202 DAG size of output: 1166 [2021-05-03 21:18:34,693 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 1155 DAG size of output: 1155 [2021-05-03 21:18:34,882 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 1131 DAG size of output: 1416 [2021-05-03 21:18:35,082 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 946 DAG size of output: 1130 [2021-05-03 21:18:36,554 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 820 DAG size of output: 949 [2021-05-03 21:18:36,678 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 743 DAG size of output: 969 [2021-05-03 21:18:38,015 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 963 DAG size of output: 786 [2021-05-03 21:18:38,140 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 1135 DAG size of output: 884 [2021-05-03 21:18:38,321 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 1196 DAG size of output: 913 [2021-05-03 21:18:38,568 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 2191 DAG size of output: 1524 [2021-05-03 21:18:38,889 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 2245 DAG size of output: 1553 [2021-05-03 21:18:39,390 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 3475 DAG size of output: 2322 [2021-05-03 21:18:40,406 WARN L205 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 6866 DAG size of output: 4100 [2021-05-03 21:18:41,496 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 7402 DAG size of output: 4105 [2021-05-03 21:18:42,558 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 7402 DAG size of output: 4105 [2021-05-03 21:18:43,614 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 7407 DAG size of output: 4110 [2021-05-03 21:18:44,160 WARN L205 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 4112 DAG size of output: 2364 [2021-05-03 21:18:44,540 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 2072 DAG size of output: 1846 [2021-05-03 21:18:44,819 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 1675 DAG size of output: 1494 [2021-05-03 21:18:46,759 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 1191 DAG size of output: 858 [2021-05-03 21:18:46,966 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 841 DAG size of output: 972 [2021-05-03 21:18:49,350 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 1057 DAG size of output: 813 [2021-05-03 21:18:49,558 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 1945 DAG size of output: 1310 [2021-05-03 21:18:50,395 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 2171 DAG size of output: 1451 [2021-05-03 21:18:50,654 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 2265 DAG size of output: 1520 [2021-05-03 21:18:50,915 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 2265 DAG size of output: 1520 [2021-05-03 21:18:51,183 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 2267 DAG size of output: 1522 [2021-05-03 21:18:51,314 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1526 DAG size of output: 877 [2021-05-03 21:18:51,945 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-05-03 21:18:51,946 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:18:51,947 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-05-03 21:18:51,947 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:59, output treesize:3 [2021-05-03 21:18:51,952 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:18:51,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:18:51,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 42 [2021-05-03 21:18:51,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628933057] [2021-05-03 21:18:51,952 INFO L460 AbstractCegarLoop]: Interpolant automaton has 43 states [2021-05-03 21:18:51,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:18:51,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-05-03 21:18:51,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=1702, Unknown=0, NotChecked=0, Total=1806 [2021-05-03 21:18:51,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:18:51,953 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:18:51,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 43 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 42 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) [2021-05-03 21:18:51,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:18:51,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-05-03 21:18:51,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:18:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:18:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:18:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:18:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:18:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:18:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:18:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:18:52,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-03 21:18:52,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:18:52,856 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42157 [2021-05-03 21:18:52,856 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:18:52,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:18:52,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1714895139, now seen corresponding path program 18 times [2021-05-03 21:18:52,857 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:18:52,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558816808] [2021-05-03 21:18:52,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:18:52,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:18:53,039 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 78 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:18:53,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558816808] [2021-05-03 21:18:53,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1978043965] [2021-05-03 21:18:53,039 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:18:53,073 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-05-03 21:18:53,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-05-03 21:18:53,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 22 conjunts are in the unsatisfiable core [2021-05-03 21:18:53,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:18:53,145 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 91 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:18:53,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-03 21:18:53,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 23 [2021-05-03 21:18:53,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105763434] [2021-05-03 21:18:53,145 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-05-03 21:18:53,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-03 21:18:53,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-05-03 21:18:53,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=394, Unknown=0, NotChecked=0, Total=552 [2021-05-03 21:18:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:18:53,146 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-05-03 21:18:53,146 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 1.375) internal successors, (33), 23 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) [2021-05-03 21:18:53,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:18:53,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:18:53,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:18:53,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:18:53,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:18:53,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:18:53,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-05-03 21:18:53,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-05-03 21:18:53,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-05-03 21:18:53,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51162,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:18:53,637 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-05-03 21:18:53,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-03 21:18:53,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1981273614, now seen corresponding path program 19 times [2021-05-03 21:18:53,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-03 21:18:53,637 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197720957] [2021-05-03 21:18:53,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-03 21:18:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:18:54,070 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-03 21:18:54,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197720957] [2021-05-03 21:18:54,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149302131] [2021-05-03 21:18:54,070 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-03 21:18:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-03 21:18:54,099 WARN L261 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 74 conjunts are in the unsatisfiable core [2021-05-03 21:18:54,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-03 21:18:55,598 WARN L205 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-05-03 21:18:55,599 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-05-03 21:18:55,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 27 new quantified variables, introduced 91 case distinctions, treesize of input 63 treesize of output 774 [2021-05-03 21:18:59,128 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 1319 DAG size of output: 1082 [2021-05-03 21:19:00,933 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 941 DAG size of output: 841 [2021-05-03 21:19:03,020 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 846 DAG size of output: 747 [2021-05-03 21:19:03,492 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 1718 DAG size of output: 1504 [2021-05-03 21:19:03,798 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 2711 DAG size of output: 2240 [2021-05-03 21:19:04,116 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 2711 DAG size of output: 2240 [2021-05-03 21:19:04,510 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 2734 DAG size of output: 2263 [2021-05-03 21:19:05,154 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 2265 DAG size of output: 2760 [2021-05-03 21:19:05,864 WARN L205 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 2214 DAG size of output: 2345 [2021-05-03 21:19:06,178 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 2206 DAG size of output: 2185 [2021-05-03 21:19:06,313 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 1060 [2021-05-03 21:19:06,451 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 714 DAG size of output: 839 [2021-05-03 21:19:06,595 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 922 [2021-05-03 21:19:06,723 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 873 [2021-05-03 21:19:06,861 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 612 DAG size of output: 765 [2021-05-03 21:19:06,974 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 791 [2021-05-03 21:19:10,124 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1059 DAG size of output: 974 [2021-05-03 21:19:10,276 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1251 DAG size of output: 1159 [2021-05-03 21:19:11,622 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 870 DAG size of output: 816 [2021-05-03 21:19:11,885 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 1672 DAG size of output: 1653 [2021-05-03 21:19:15,410 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 875 [2021-05-03 21:19:15,618 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 1478 DAG size of output: 1278 [2021-05-03 21:19:16,106 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 2806 DAG size of output: 2648 [2021-05-03 21:19:19,240 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 1268 DAG size of output: 1210 [2021-05-03 21:19:19,439 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 1290 DAG size of output: 1224 [2021-05-03 21:19:22,038 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 1013 DAG size of output: 847 [2021-05-03 21:19:22,353 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 1918 DAG size of output: 1735 [2021-05-03 21:19:23,182 WARN L205 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 4108 DAG size of output: 3861 [2021-05-03 21:19:28,209 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 894 DAG size of output: 855 [2021-05-03 21:19:28,447 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 1472 DAG size of output: 1415 [2021-05-03 21:19:31,370 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 1102 DAG size of output: 1097 [2021-05-03 21:19:33,813 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 996 DAG size of output: 930 [2021-05-03 21:19:34,138 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 1885 DAG size of output: 1855 [2021-05-03 21:19:34,679 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 2979 DAG size of output: 2592 [2021-05-03 21:19:35,380 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 3330 DAG size of output: 2923 [2021-05-03 21:19:37,726 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 1034 DAG size of output: 935 [2021-05-03 21:19:38,289 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 1354 DAG size of output: 1208 [2021-05-03 21:19:39,694 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 775 DAG size of output: 754 [2021-05-03 21:19:40,915 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 1049 DAG size of output: 1054 [2021-05-03 21:19:41,888 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 1683 DAG size of output: 1619 [2021-05-03 21:19:42,294 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 2475 DAG size of output: 2361 [2021-05-03 21:19:44,319 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 895 DAG size of output: 878 [2021-05-03 21:19:46,151 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 1440 DAG size of output: 1361 [2021-05-03 21:19:46,814 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 1717 DAG size of output: 1614 [2021-05-03 21:19:47,516 WARN L205 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 3510 DAG size of output: 3419 [2021-05-03 21:19:48,890 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 5856 DAG size of output: 5538 [2021-05-03 21:19:50,346 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 5911 DAG size of output: 5557 [2021-05-03 21:19:52,713 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 9470 DAG size of output: 8715 [2021-05-03 21:19:55,580 WARN L205 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 9893 DAG size of output: 8955 [2021-05-03 21:19:56,753 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 876 DAG size of output: 718 [2021-05-03 21:19:58,518 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 1625 DAG size of output: 1180 [2021-05-03 21:20:00,166 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 968 DAG size of output: 790 [2021-05-03 21:20:00,518 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 2310 DAG size of output: 1732 [2021-05-03 21:20:03,405 WARN L205 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 11843 DAG size of output: 10408 [2021-05-03 21:20:06,549 WARN L205 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 12069 DAG size of output: 10662 [2021-05-03 21:20:09,921 WARN L205 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 12304 DAG size of output: 10799 [2021-05-03 21:20:13,458 WARN L205 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 12623 DAG size of output: 11076 [2021-05-03 21:20:13,695 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 605 DAG size of output: 770 [2021-05-03 21:20:18,396 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 771 DAG size of output: 770 [2021-05-03 21:20:19,786 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1222 DAG size of output: 1178 [2021-05-03 21:20:19,957 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 1295 DAG size of output: 1237 [2021-05-03 21:20:22,210 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1073 DAG size of output: 990 [2021-05-03 21:20:24,814 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1517 DAG size of output: 1293 [2021-05-03 21:20:25,074 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 2085 DAG size of output: 1873 [2021-05-03 21:20:25,541 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 3132 DAG size of output: 2873 [2021-05-03 21:20:28,663 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1199 DAG size of output: 1078 [2021-05-03 21:20:28,834 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 1771 DAG size of output: 1614 [2021-05-03 21:20:31,646 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1473 DAG size of output: 1347 [2021-05-03 21:20:31,979 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 2646 DAG size of output: 2378 [2021-05-03 21:20:34,837 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 1314 DAG size of output: 1284 [2021-05-03 21:20:37,809 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 1313 DAG size of output: 1108 [2021-05-03 21:20:40,126 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 1157 DAG size of output: 1094 [2021-05-03 21:20:40,272 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 1231 DAG size of output: 1163 [2021-05-03 21:20:40,570 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 2206 DAG size of output: 1970 [2021-05-03 21:20:41,043 WARN L205 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 3256 DAG size of output: 2982 [2021-05-03 21:20:41,933 WARN L205 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 4900 DAG size of output: 4652 [2021-05-03 21:20:44,257 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1221 DAG size of output: 1050 [2021-05-03 21:20:45,750 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 1852 DAG size of output: 1640 [2021-05-03 21:20:48,744 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 1417 DAG size of output: 1310 [2021-05-03 21:20:49,147 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 2751 DAG size of output: 2408 [2021-05-03 21:20:50,859 WARN L205 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 8107 DAG size of output: 7809 [2021-05-03 21:20:53,895 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 1136 DAG size of output: 956 [2021-05-03 21:20:54,013 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1152 DAG size of output: 972 [2021-05-03 21:20:55,034 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1169 DAG size of output: 1060 [2021-05-03 21:20:56,822 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 702 DAG size of output: 620 [2021-05-03 21:20:57,052 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 1267 DAG size of output: 1175 [2021-05-03 21:20:59,434 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 1141 DAG size of output: 965 [2021-05-03 21:21:00,360 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 1158 DAG size of output: 1056 [2021-05-03 21:21:02,263 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 1256 DAG size of output: 1171 [2021-05-03 21:21:02,732 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 2376 DAG size of output: 2190 [2021-05-03 21:21:05,065 WARN L205 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 10534 DAG size of output: 10078 [2021-05-03 21:21:06,599 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 567 [2021-05-03 21:21:08,557 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 1090 DAG size of output: 1011 [2021-05-03 21:21:08,851 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 1496 DAG size of output: 1466 [2021-05-03 21:21:09,736 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 2068 DAG size of output: 1823 [2021-05-03 21:21:12,510 WARN L205 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 12450 DAG size of output: 11688 [2021-05-03 21:21:15,533 WARN L205 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 13101 DAG size of output: 12266 [2021-05-03 21:21:18,732 WARN L205 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 13395 DAG size of output: 12440 [2021-05-03 21:21:22,040 WARN L205 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 14397 DAG size of output: 13079 [2021-05-03 21:21:25,529 WARN L205 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 14649 DAG size of output: 13223 [2021-05-03 21:21:29,238 WARN L205 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 14977 DAG size of output: 13506 [2021-05-03 21:21:34,138 WARN L205 SmtUtils]: Spent 3.81 s on a formula simplification. DAG size of input: 15194 DAG size of output: 13738 [2021-05-03 21:21:41,758 WARN L205 SmtUtils]: Spent 7.48 s on a formula simplification. DAG size of input: 26745 DAG size of output: 23370 [2021-05-03 21:21:42,032 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 700 DAG size of output: 851 [2021-05-03 21:21:42,164 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 954 [2021-05-03 21:21:42,284 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 655 DAG size of output: 927 [2021-05-03 21:21:42,402 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 650 DAG size of output: 911 [2021-05-03 21:21:46,873 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 997 DAG size of output: 862 [2021-05-03 21:21:48,088 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 1732 DAG size of output: 1508 [2021-05-03 21:21:48,355 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 1999 DAG size of output: 1657 [2021-05-03 21:21:53,051 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 1261 DAG size of output: 1207 [2021-05-03 21:21:53,212 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 1380 DAG size of output: 1286 [2021-05-03 21:21:53,596 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 2319 DAG size of output: 2179 [2021-05-03 21:21:54,132 WARN L205 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 3783 DAG size of output: 3037 [2021-05-03 21:21:55,766 WARN L205 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 4152 DAG size of output: 3383 [2021-05-03 21:21:57,105 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 494 [2021-05-03 21:21:57,748 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1017 DAG size of output: 785 [2021-05-03 21:21:59,484 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1000 DAG size of output: 921 [2021-05-03 21:21:59,893 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 1271 DAG size of output: 1151 [2021-05-03 21:22:00,152 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 1888 DAG size of output: 1608 [2021-05-03 21:22:02,079 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1244 DAG size of output: 1149 [2021-05-03 21:22:03,493 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 1820 DAG size of output: 1729 [2021-05-03 21:22:06,092 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 1404 DAG size of output: 1234 [2021-05-03 21:22:06,466 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 2664 DAG size of output: 2563 [2021-05-03 21:22:07,175 WARN L205 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 3829 DAG size of output: 3556 [2021-05-03 21:22:07,889 WARN L205 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 4064 DAG size of output: 3714 [2021-05-03 21:22:09,301 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 7138 DAG size of output: 6235 [2021-05-03 21:22:13,510 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 924 DAG size of output: 881 [2021-05-03 21:22:13,731 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 1542 DAG size of output: 1430 [2021-05-03 21:22:13,995 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 1772 DAG size of output: 1590 [2021-05-03 21:22:14,406 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 2049 DAG size of output: 1818 [2021-05-03 21:22:17,387 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1221 DAG size of output: 1101 [2021-05-03 21:22:17,594 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 1713 DAG size of output: 1582 [2021-05-03 21:22:20,252 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 1317 DAG size of output: 1181 [2021-05-03 21:22:20,683 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 2506 DAG size of output: 2399 [2021-05-03 21:22:21,112 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 2728 DAG size of output: 2579 [2021-05-03 21:22:21,863 WARN L205 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 4060 DAG size of output: 3794 [2021-05-03 21:22:24,921 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 1055 DAG size of output: 961 [2021-05-03 21:22:26,903 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 1745 DAG size of output: 1637 [2021-05-03 21:22:27,179 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 2011 DAG size of output: 1797 [2021-05-03 21:22:32,079 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 1244 DAG size of output: 1209 [2021-05-03 21:22:32,251 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 1371 DAG size of output: 1304 [2021-05-03 21:22:32,632 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 2160 DAG size of output: 2102 [2021-05-03 21:22:33,185 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 3647 DAG size of output: 3063 [2021-05-03 21:22:33,987 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 3970 DAG size of output: 3377 [2021-05-03 21:22:35,453 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 7065 DAG size of output: 6258 [2021-05-03 21:22:38,464 WARN L205 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 13484 DAG size of output: 11267 [2021-05-03 21:22:40,005 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 815 DAG size of output: 673 [2021-05-03 21:22:41,976 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 1432 DAG size of output: 1098 [2021-05-03 21:22:44,737 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 1206 DAG size of output: 964 [2021-05-03 21:22:45,184 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 2424 DAG size of output: 1788 [2021-05-03 21:22:48,698 WARN L205 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 15746 DAG size of output: 12900 [2021-05-03 21:22:53,893 WARN L205 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 16353 DAG size of output: 13473 [2021-05-03 21:22:59,414 WARN L205 SmtUtils]: Spent 3.89 s on a formula simplification. DAG size of input: 17666 DAG size of output: 14071 [2021-05-03 21:23:03,731 WARN L205 SmtUtils]: Spent 4.19 s on a formula simplification. DAG size of input: 17919 DAG size of output: 14391 [2021-05-03 21:23:08,268 WARN L205 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 18270 DAG size of output: 14573 [2021-05-03 21:23:12,984 WARN L205 SmtUtils]: Spent 4.58 s on a formula simplification. DAG size of input: 18574 DAG size of output: 14802 [2021-05-03 21:23:13,205 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 651 DAG size of output: 927 [2021-05-03 21:23:14,907 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 575 DAG size of output: 841 [2021-05-03 21:23:19,316 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 1398 DAG size of output: 1253 [2021-05-03 21:23:22,564 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 2259 DAG size of output: 1943 [2021-05-03 21:23:24,588 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 576 DAG size of output: 576 [2021-05-03 21:23:24,706 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 946 DAG size of output: 977 [2021-05-03 21:23:26,976 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 1584 DAG size of output: 1581 [2021-05-03 21:23:27,535 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 3125 DAG size of output: 2976 [2021-05-03 21:23:29,788 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 1121 DAG size of output: 1051 [2021-05-03 21:23:32,052 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 1087 DAG size of output: 1007 [2021-05-03 21:23:32,303 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 1739 DAG size of output: 1689 [2021-05-03 21:23:35,207 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 1107 DAG size of output: 963 [2021-05-03 21:23:37,897 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 1225 DAG size of output: 1105 [2021-05-03 21:23:38,195 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 2086 DAG size of output: 1855 [2021-05-03 21:23:39,403 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 5189 DAG size of output: 5120 [2021-05-03 21:23:41,064 WARN L205 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 5464 DAG size of output: 5420 [2021-05-03 21:23:42,663 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 5505 DAG size of output: 5370 [2021-05-03 21:23:46,513 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 1254 DAG size of output: 1164 [2021-05-03 21:23:49,009 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 1100 DAG size of output: 895 [2021-05-03 21:23:49,283 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 1982 DAG size of output: 1548 [2021-05-03 21:23:51,537 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1134 DAG size of output: 904 [2021-05-03 21:23:54,420 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 1367 DAG size of output: 1031 [2021-05-03 21:23:55,031 WARN L205 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 3540 DAG size of output: 2743 [2021-05-03 21:23:55,635 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 3752 DAG size of output: 2945 [2021-05-03 21:23:56,344 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 3782 DAG size of output: 2948 [2021-05-03 21:23:58,621 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 1201 DAG size of output: 1061 [2021-05-03 21:24:00,330 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 1737 DAG size of output: 1574 [2021-05-03 21:24:00,633 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 1758 DAG size of output: 1591 [2021-05-03 21:24:03,211 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 1304 DAG size of output: 1135 [2021-05-03 21:24:03,389 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 1332 DAG size of output: 1158 [2021-05-03 21:24:03,823 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 2755 DAG size of output: 2423 [2021-05-03 21:24:04,318 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 413 DAG size of output: 550 [2021-05-03 21:24:05,431 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 924 DAG size of output: 775 [2021-05-03 21:24:06,679 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 1211 DAG size of output: 1039 [2021-05-03 21:24:08,389 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 832 DAG size of output: 658 [2021-05-03 21:24:08,517 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 934 DAG size of output: 751 [2021-05-03 21:24:08,643 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 958 DAG size of output: 763 [2021-05-03 21:24:08,963 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 1912 DAG size of output: 1493 [2021-05-03 21:24:09,786 WARN L205 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 3858 DAG size of output: 3339 [2021-05-03 21:24:11,294 WARN L205 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 6616 DAG size of output: 5590 [2021-05-03 21:24:14,245 WARN L205 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 11460 DAG size of output: 9966 [2021-05-03 21:24:16,484 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1214 DAG size of output: 908 [2021-05-03 21:24:18,179 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 460 DAG size of output: 372 [2021-05-03 21:24:18,589 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 1182 DAG size of output: 876 [2021-05-03 21:24:18,891 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 2166 DAG size of output: 1467 [2021-05-03 21:24:22,201 WARN L205 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 13202 DAG size of output: 11038 [2021-05-03 21:24:25,693 WARN L205 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 14429 DAG size of output: 11480 [2021-05-03 21:24:30,271 WARN L205 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 14709 DAG size of output: 11827 [2021-05-03 21:24:34,173 WARN L205 SmtUtils]: Spent 3.81 s on a formula simplification. DAG size of input: 15008 DAG size of output: 12048 [2021-05-03 21:24:42,635 WARN L205 SmtUtils]: Spent 8.35 s on a formula simplification. DAG size of input: 32411 DAG size of output: 25107 [2021-05-03 21:24:51,543 WARN L205 SmtUtils]: Spent 8.71 s on a formula simplification. DAG size of input: 32818 DAG size of output: 25389 [2021-05-03 21:25:08,078 WARN L205 SmtUtils]: Spent 16.30 s on a formula simplification. DAG size of input: 57077 DAG size of output: 45107 [2021-05-03 21:25:25,345 WARN L205 SmtUtils]: Spent 16.93 s on a formula simplification. DAG size of input: 57471 DAG size of output: 45432 [2021-05-03 21:25:25,858 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 582 DAG size of output: 833 [2021-05-03 21:25:28,526 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 591 DAG size of output: 441 [2021-05-03 21:25:28,823 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 1504 DAG size of output: 1076 [2021-05-03 21:25:32,382 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 957 DAG size of output: 970 [2021-05-03 21:25:35,739 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 817 DAG size of output: 925 [2021-05-03 21:25:35,942 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 1283 DAG size of output: 1415 [2021-05-03 21:25:36,384 WARN L205 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 2055 DAG size of output: 2188 [2021-05-03 21:25:38,534 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 998 DAG size of output: 964 [2021-05-03 21:25:40,418 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1112 DAG size of output: 1001 [2021-05-03 21:25:42,520 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 1055 DAG size of output: 889 [2021-05-03 21:25:44,411 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 1018 DAG size of output: 971 [2021-05-03 21:25:44,652 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 1770 DAG size of output: 1581 [2021-05-03 21:25:45,139 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 2742 DAG size of output: 2659 [2021-05-03 21:25:46,084 WARN L205 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 4053 DAG size of output: 4092 [2021-05-03 21:25:48,114 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 4261 DAG size of output: 4309 [2021-05-03 21:25:49,472 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 4554 DAG size of output: 4422 [2021-05-03 21:25:55,637 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 1428 DAG size of output: 1345 [2021-05-03 21:25:55,966 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 2147 DAG size of output: 2088 [2021-05-03 21:25:59,743 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 1081 DAG size of output: 852 [2021-05-03 21:25:59,959 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 1694 DAG size of output: 1421 [2021-05-03 21:26:01,914 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 1120 DAG size of output: 1010 [2021-05-03 21:26:03,594 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 1662 DAG size of output: 1507 [2021-05-03 21:26:04,111 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 2968 DAG size of output: 2614 [2021-05-03 21:26:04,940 WARN L205 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 4476 DAG size of output: 4129 [2021-05-03 21:26:06,889 WARN L205 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 4811 DAG size of output: 4441 Received shutdown request... [2021-05-03 21:26:07,914 WARN L205 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 5104 DAG size of output: 4605 [2021-05-03 21:26:10,066 WARN L205 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 8904 DAG size of output: 7925 [2021-05-03 21:26:12,433 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 10245 DAG size of output: 8713 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown