/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a865e3bea3ade1065a4c95009cfa501fe03c5538-a865e3b [2021-02-19 22:17:24,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-19 22:17:24,209 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-19 22:17:24,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-19 22:17:24,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-19 22:17:24,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-19 22:17:24,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-19 22:17:24,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-19 22:17:24,255 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-19 22:17:24,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-19 22:17:24,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-19 22:17:24,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-19 22:17:24,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-19 22:17:24,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-19 22:17:24,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-19 22:17:24,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-19 22:17:24,271 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-19 22:17:24,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-19 22:17:24,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-19 22:17:24,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-19 22:17:24,280 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-Sleep-NoLbe-Delay.epf [2021-02-19 22:17:24,308 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-19 22:17:24,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-19 22:17:24,309 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-02-19 22:17:24,309 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-02-19 22:17:24,312 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-02-19 22:17:24,312 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-02-19 22:17:24,312 INFO L138 SettingsManager]: * Use SBE=true [2021-02-19 22:17:24,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-19 22:17:24,312 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-19 22:17:24,312 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-19 22:17:24,313 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-19 22:17:24,313 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-19 22:17:24,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-19 22:17:24,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-19 22:17:24,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-19 22:17:24,313 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-19 22:17:24,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-19 22:17:24,313 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-19 22:17:24,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-19 22:17:24,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-19 22:17:24,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-02-19 22:17:24,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-19 22:17:24,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-19 22:17:24,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-19 22:17:24,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-19 22:17:24,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-02-19 22:17:24,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-02-19 22:17:24,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-02-19 22:17:24,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-02-19 22:17:24,315 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-02-19 22:17:24,315 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-02-19 22:17:24,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-19 22:17:24,315 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-02-19 22:17:24,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-02-19 22:17:24,540 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-19 22:17:24,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-19 22:17:24,560 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-19 22:17:24,560 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-02-19 22:17:24,561 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-02-19 22:17:24,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl [2021-02-19 22:17:24,562 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun.wvr.bpl' [2021-02-19 22:17:24,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-19 22:17:24,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-19 22:17:24,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-02-19 22:17:24,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-02-19 22:17:24,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-02-19 22:17:24,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:17:24" (1/1) ... [2021-02-19 22:17:24,619 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:17:24" (1/1) ... [2021-02-19 22:17:24,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-02-19 22:17:24,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-19 22:17:24,627 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-19 22:17:24,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-19 22:17:24,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:17:24" (1/1) ... [2021-02-19 22:17:24,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:17:24" (1/1) ... [2021-02-19 22:17:24,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:17:24" (1/1) ... [2021-02-19 22:17:24,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:17:24" (1/1) ... [2021-02-19 22:17:24,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:17:24" (1/1) ... [2021-02-19 22:17:24,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:17:24" (1/1) ... [2021-02-19 22:17:24,636 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:17:24" (1/1) ... [2021-02-19 22:17:24,639 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-19 22:17:24,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-19 22:17:24,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-19 22:17:24,641 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-19 22:17:24,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:17:24" (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 [2021-02-19 22:17:24,699 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-02-19 22:17:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-02-19 22:17:24,699 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-02-19 22:17:24,699 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-02-19 22:17:24,699 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-02-19 22:17:24,700 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-02-19 22:17:24,700 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-02-19 22:17:24,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-19 22:17:24,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-19 22:17:24,700 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-02-19 22:17:24,701 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-02-19 22:17:24,701 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-02-19 22:17:24,701 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-02-19 22:17:24,839 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-19 22:17:24,839 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-19 22:17:24,840 INFO L202 PluginConnector]: Adding new model max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:17:24 BoogieIcfgContainer [2021-02-19 22:17:24,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-19 22:17:24,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-19 22:17:24,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-19 22:17:24,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-19 22:17:24,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:17:24" (1/2) ... [2021-02-19 22:17:24,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d1753fd and model type max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:17:24, skipping insertion in model container [2021-02-19 22:17:24,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:17:24" (2/2) ... [2021-02-19 22:17:24,844 INFO L111 eAbstractionObserver]: Analyzing ICFG max-fun.wvr.bpl [2021-02-19 22:17:24,848 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-02-19 22:17:24,848 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-02-19 22:17:24,850 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-19 22:17:24,850 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-02-19 22:17:24,889 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-02-19 22:17:24,903 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 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) [2021-02-19 22:17:24,937 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-19 22:17:24,938 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-19 22:17:24,938 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-02-19 22:17:24,938 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-19 22:17:24,938 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-19 22:17:24,938 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-19 22:17:24,938 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-19 22:17:24,938 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-02-19 22:17:24,965 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:17:24,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:17:24,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1399820781, now seen corresponding path program 1 times [2021-02-19 22:17:24,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:17:24,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938995250] [2021-02-19 22:17:24,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:17:25,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:17:25,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:17:25,143 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938995250] [2021-02-19 22:17:25,144 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 22:17:25,144 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-02-19 22:17:25,144 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856408440] [2021-02-19 22:17:25,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-02-19 22:17:25,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:17:25,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-02-19 22:17:25,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-02-19 22:17:25,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:17:25,156 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:17:25,159 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2021-02-19 22:17:25,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:17:25,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:17:25,225 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-19 22:17:25,225 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:17:25,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:17:25,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1882321483, now seen corresponding path program 1 times [2021-02-19 22:17:25,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:17:25,226 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63001266] [2021-02-19 22:17:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:17:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:17:25,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:17:25,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63001266] [2021-02-19 22:17:25,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-19 22:17:25,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-19 22:17:25,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312661556] [2021-02-19 22:17:25,286 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-19 22:17:25,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:17:25,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-19 22:17:25,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-19 22:17:25,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:17:25,289 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:17:25,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 22:17:25,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:17:25,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:17:25,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:17:25,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:17:25,339 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-19 22:17:25,340 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:17:25,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:17:25,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1166833961, now seen corresponding path program 1 times [2021-02-19 22:17:25,340 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:17:25,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718270244] [2021-02-19 22:17:25,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:17:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:17:25,670 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:17:25,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718270244] [2021-02-19 22:17:25,670 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131329086] [2021-02-19 22:17:25,670 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 [2021-02-19 22:17:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:17:25,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjunts are in the unsatisfiable core [2021-02-19 22:17:25,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:17:25,949 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 21 treesize of output 13 [2021-02-19 22:17:25,951 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:25,954 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 16 treesize of output 10 [2021-02-19 22:17:25,955 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:25,958 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 16 treesize of output 10 [2021-02-19 22:17:25,960 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:25,971 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:17:25,974 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-02-19 22:17:25,974 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:103, output treesize:21 [2021-02-19 22:17:26,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:17:26,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:17:26,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-02-19 22:17:26,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227880708] [2021-02-19 22:17:26,025 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-19 22:17:26,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:17:26,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-19 22:17:26,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-02-19 22:17:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:17:26,026 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:17:26,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 11 states have internal predecessors, (34), 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) [2021-02-19 22:17:26,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:17:26,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:17:26,026 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:17:26,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:17:26,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:17:26,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:17:26,378 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:17:26,378 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:17:26,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:17:26,378 INFO L82 PathProgramCache]: Analyzing trace with hash 2135652999, now seen corresponding path program 2 times [2021-02-19 22:17:26,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:17:26,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455357015] [2021-02-19 22:17:26,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:17:26,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:17:26,425 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:17:26,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455357015] [2021-02-19 22:17:26,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221019329] [2021-02-19 22:17:26,426 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 [2021-02-19 22:17:26,453 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 22:17:26,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:17:26,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-02-19 22:17:26,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:17:26,545 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:17:26,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:17:26,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-02-19 22:17:26,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727776060] [2021-02-19 22:17:26,546 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-02-19 22:17:26,546 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:17:26,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-02-19 22:17:26,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-02-19 22:17:26,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:17:26,547 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:17:26,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 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) [2021-02-19 22:17:26,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:17:26,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:17:26,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:17:26,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:17:26,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:17:26,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:17:26,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:17:26,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:17:26,873 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:17:26,874 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:17:26,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:17:26,874 INFO L82 PathProgramCache]: Analyzing trace with hash -357408053, now seen corresponding path program 1 times [2021-02-19 22:17:26,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:17:26,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074989981] [2021-02-19 22:17:26,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:17:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:17:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:17:26,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074989981] [2021-02-19 22:17:26,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197222733] [2021-02-19 22:17:26,932 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) [2021-02-19 22:17:26,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:17:26,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-02-19 22:17:26,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:17:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:17:27,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:17:27,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-02-19 22:17:27,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421830254] [2021-02-19 22:17:27,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-02-19 22:17:27,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:17:27,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-02-19 22:17:27,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-02-19 22:17:27,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:17:27,058 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:17:27,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2021-02-19 22:17:27,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:17:27,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:17:27,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:17:27,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:17:27,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:17:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:17:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:17:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:17:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:17:27,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:17:27,346 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:17:27,347 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:17:27,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:17:27,347 INFO L82 PathProgramCache]: Analyzing trace with hash -336173655, now seen corresponding path program 2 times [2021-02-19 22:17:27,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:17:27,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601843779] [2021-02-19 22:17:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:17:27,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:17:27,952 WARN L202 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-02-19 22:17:28,154 WARN L202 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2021-02-19 22:17:28,327 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 56 [2021-02-19 22:17:28,479 WARN L202 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2021-02-19 22:17:28,761 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:17:28,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601843779] [2021-02-19 22:17:28,761 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83982213] [2021-02-19 22:17:28,761 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 [2021-02-19 22:17:28,804 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-02-19 22:17:28,804 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:17:28,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 35 conjunts are in the unsatisfiable core [2021-02-19 22:17:28,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:17:29,415 WARN L202 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2021-02-19 22:17:29,684 WARN L202 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-02-19 22:17:30,070 WARN L202 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2021-02-19 22:17:30,320 WARN L202 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-02-19 22:17:30,983 WARN L202 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-02-19 22:17:31,955 WARN L202 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 344 [2021-02-19 22:17:33,398 INFO L446 ElimStorePlain]: Different costs {6=[v_prenex_43, v_prenex_36], 10=[A, v_prenex_32, v_prenex_31, v_prenex_42, v_prenex_41, v_prenex_40, v_prenex_35, v_prenex_34, v_prenex_45, v_prenex_44, v_prenex_33, v_prenex_39, v_prenex_38, v_prenex_37]} [2021-02-19 22:17:33,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:33,507 INFO L354 Elim1Store]: treesize reduction 4, result has 91.1 percent of original size [2021-02-19 22:17:33,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 62 [2021-02-19 22:17:33,517 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:33,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:33,596 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-02-19 22:17:33,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 51 [2021-02-19 22:17:33,608 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:36,886 WARN L202 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 422 DAG size of output: 418 [2021-02-19 22:17:36,887 INFO L628 ElimStorePlain]: treesize reduction 19, result has 99.1 percent of original size [2021-02-19 22:17:36,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:36,978 INFO L354 Elim1Store]: treesize reduction 4, result has 91.1 percent of original size [2021-02-19 22:17:36,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 59 [2021-02-19 22:17:36,996 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:37,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:37,065 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:17:37,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 66 [2021-02-19 22:17:37,072 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:42,155 WARN L202 SmtUtils]: Spent 5.08 s on a formula simplification. DAG size of input: 423 DAG size of output: 413 [2021-02-19 22:17:42,156 INFO L628 ElimStorePlain]: treesize reduction 47, result has 97.8 percent of original size [2021-02-19 22:17:42,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:42,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:42,294 INFO L354 Elim1Store]: treesize reduction 8, result has 88.7 percent of original size [2021-02-19 22:17:42,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 33 treesize of output 81 [2021-02-19 22:17:42,322 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:42,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:42,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:42,443 INFO L354 Elim1Store]: treesize reduction 16, result has 77.5 percent of original size [2021-02-19 22:17:42,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 38 treesize of output 76 [2021-02-19 22:17:42,455 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:44,056 WARN L202 SmtUtils]: Spent 1.60 s on a formula simplification that was a NOOP. DAG size: 407 [2021-02-19 22:17:44,056 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:17:44,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:44,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:44,181 INFO L354 Elim1Store]: treesize reduction 24, result has 66.2 percent of original size [2021-02-19 22:17:44,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 68 [2021-02-19 22:17:44,198 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:44,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:44,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:44,325 INFO L354 Elim1Store]: treesize reduction 16, result has 77.5 percent of original size [2021-02-19 22:17:44,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 79 [2021-02-19 22:17:44,334 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:46,032 WARN L202 SmtUtils]: Spent 1.70 s on a formula simplification that was a NOOP. DAG size: 415 [2021-02-19 22:17:46,033 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:17:46,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:46,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:46,169 INFO L354 Elim1Store]: treesize reduction 20, result has 71.8 percent of original size [2021-02-19 22:17:46,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 51 treesize of output 75 [2021-02-19 22:17:46,175 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:46,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:46,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:46,271 INFO L354 Elim1Store]: treesize reduction 28, result has 60.6 percent of original size [2021-02-19 22:17:46,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 46 treesize of output 64 [2021-02-19 22:17:46,280 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:49,740 WARN L202 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 421 DAG size of output: 416 [2021-02-19 22:17:49,741 INFO L628 ElimStorePlain]: treesize reduction 18, result has 99.2 percent of original size [2021-02-19 22:17:49,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:49,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:49,855 INFO L354 Elim1Store]: treesize reduction 28, result has 60.6 percent of original size [2021-02-19 22:17:49,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 44 treesize of output 64 [2021-02-19 22:17:49,877 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:49,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:49,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:49,992 INFO L354 Elim1Store]: treesize reduction 20, result has 71.8 percent of original size [2021-02-19 22:17:49,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 75 [2021-02-19 22:17:50,006 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:53,406 WARN L202 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 423 DAG size of output: 418 [2021-02-19 22:17:53,407 INFO L628 ElimStorePlain]: treesize reduction 45, result has 97.9 percent of original size [2021-02-19 22:17:53,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:53,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:53,534 INFO L354 Elim1Store]: treesize reduction 28, result has 60.6 percent of original size [2021-02-19 22:17:53,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 42 treesize of output 64 [2021-02-19 22:17:53,541 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:53,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:53,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:53,639 INFO L354 Elim1Store]: treesize reduction 24, result has 66.2 percent of original size [2021-02-19 22:17:53,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 65 [2021-02-19 22:17:53,658 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:55,369 WARN L202 SmtUtils]: Spent 1.71 s on a formula simplification that was a NOOP. DAG size: 413 [2021-02-19 22:17:55,370 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:17:55,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:55,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:55,486 INFO L354 Elim1Store]: treesize reduction 20, result has 71.8 percent of original size [2021-02-19 22:17:55,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 69 [2021-02-19 22:17:55,501 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:55,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:55,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:55,610 INFO L354 Elim1Store]: treesize reduction 24, result has 66.2 percent of original size [2021-02-19 22:17:55,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 44 treesize of output 68 [2021-02-19 22:17:55,618 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:57,293 WARN L202 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 407 [2021-02-19 22:17:57,293 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:17:57,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:57,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:57,412 INFO L354 Elim1Store]: treesize reduction 28, result has 60.6 percent of original size [2021-02-19 22:17:57,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 46 treesize of output 64 [2021-02-19 22:17:57,428 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:57,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:57,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:57,552 INFO L354 Elim1Store]: treesize reduction 12, result has 83.1 percent of original size [2021-02-19 22:17:57,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 51 treesize of output 83 [2021-02-19 22:17:57,566 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:59,303 WARN L202 SmtUtils]: Spent 1.74 s on a formula simplification that was a NOOP. DAG size: 426 [2021-02-19 22:17:59,303 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:17:59,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:59,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:59,441 INFO L354 Elim1Store]: treesize reduction 12, result has 83.1 percent of original size [2021-02-19 22:17:59,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 83 [2021-02-19 22:17:59,454 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 22:17:59,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:59,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:17:59,570 INFO L354 Elim1Store]: treesize reduction 16, result has 77.5 percent of original size [2021-02-19 22:17:59,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 44 treesize of output 76 [2021-02-19 22:17:59,599 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:03,119 WARN L202 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 429 DAG size of output: 426 [2021-02-19 22:18:03,121 INFO L628 ElimStorePlain]: treesize reduction 5, result has 99.8 percent of original size [2021-02-19 22:18:03,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:03,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:03,246 INFO L354 Elim1Store]: treesize reduction 24, result has 66.2 percent of original size [2021-02-19 22:18:03,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 38 treesize of output 68 [2021-02-19 22:18:03,256 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:03,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:03,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:03,365 INFO L354 Elim1Store]: treesize reduction 28, result has 60.6 percent of original size [2021-02-19 22:18:03,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 67 [2021-02-19 22:18:03,372 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:05,103 WARN L202 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 421 [2021-02-19 22:18:05,104 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:18:05,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:05,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:05,221 INFO L354 Elim1Store]: treesize reduction 20, result has 71.8 percent of original size [2021-02-19 22:18:05,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 33 treesize of output 69 [2021-02-19 22:18:05,236 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:05,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:05,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:05,345 INFO L354 Elim1Store]: treesize reduction 24, result has 66.2 percent of original size [2021-02-19 22:18:05,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 38 treesize of output 68 [2021-02-19 22:18:05,353 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:07,083 WARN L202 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 417 [2021-02-19 22:18:07,083 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:18:07,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:07,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:07,205 INFO L354 Elim1Store]: treesize reduction 24, result has 66.2 percent of original size [2021-02-19 22:18:07,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 44 treesize of output 68 [2021-02-19 22:18:07,216 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:07,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:07,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:07,334 INFO L354 Elim1Store]: treesize reduction 16, result has 77.5 percent of original size [2021-02-19 22:18:07,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 79 [2021-02-19 22:18:07,345 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:10,752 WARN L202 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 416 DAG size of output: 411 [2021-02-19 22:18:10,754 INFO L628 ElimStorePlain]: treesize reduction 20, result has 99.0 percent of original size [2021-02-19 22:18:10,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:10,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:10,909 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2021-02-19 22:18:10,910 INFO L354 Elim1Store]: treesize reduction 8, result has 88.7 percent of original size [2021-02-19 22:18:10,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 53 treesize of output 87 [2021-02-19 22:18:10,921 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:10,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:10,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:11,034 INFO L354 Elim1Store]: treesize reduction 20, result has 71.8 percent of original size [2021-02-19 22:18:11,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 48 treesize of output 72 [2021-02-19 22:18:11,046 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:16,258 WARN L202 SmtUtils]: Spent 5.21 s on a formula simplification. DAG size of input: 422 DAG size of output: 416 [2021-02-19 22:18:16,260 INFO L628 ElimStorePlain]: treesize reduction 30, result has 98.6 percent of original size [2021-02-19 22:18:16,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:16,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:16,354 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:18:16,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 28 treesize of output 86 [2021-02-19 22:18:16,411 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:16,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:16,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:16,524 INFO L354 Elim1Store]: treesize reduction 16, result has 77.5 percent of original size [2021-02-19 22:18:16,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 33 treesize of output 73 [2021-02-19 22:18:16,539 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:18,273 WARN L202 SmtUtils]: Spent 1.73 s on a formula simplification that was a NOOP. DAG size: 407 [2021-02-19 22:18:18,273 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:18:18,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:18,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:18,412 INFO L354 Elim1Store]: treesize reduction 16, result has 77.5 percent of original size [2021-02-19 22:18:18,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 53 treesize of output 79 [2021-02-19 22:18:18,422 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:18,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:18,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:18:18,534 INFO L354 Elim1Store]: treesize reduction 24, result has 66.2 percent of original size [2021-02-19 22:18:18,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 48 treesize of output 68 [2021-02-19 22:18:18,542 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-02-19 22:18:21,922 WARN L202 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 404 DAG size of output: 400 [2021-02-19 22:18:21,923 INFO L628 ElimStorePlain]: treesize reduction 17, result has 99.2 percent of original size [2021-02-19 22:18:22,741 INFO L550 ElimStorePlain]: Start of recursive call 1: 31 dim-0 vars, 16 dim-1 vars, End of recursive call: and 32 xjuncts. [2021-02-19 22:18:22,741 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 47 variables, input treesize:2169, output treesize:6656 [2021-02-19 22:18:24,904 WARN L202 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 399 DAG size of output: 108 [2021-02-19 22:18:25,059 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:18:25,059 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:18:25,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-02-19 22:18:25,060 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195331185] [2021-02-19 22:18:25,060 INFO L460 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-02-19 22:18:25,060 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:18:25,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-02-19 22:18:25,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2021-02-19 22:18:25,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:18:25,061 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:18:25,061 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 25 states have internal predecessors, (56), 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) [2021-02-19 22:18:25,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:18:25,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:18:25,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:18:25,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:18:25,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:18:25,061 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:18:25,883 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 53 [2021-02-19 22:18:27,850 WARN L202 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 134 DAG size of output: 107 [2021-02-19 22:18:30,153 WARN L202 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 135 DAG size of output: 104 [2021-02-19 22:18:33,250 WARN L202 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 272 DAG size of output: 158 [2021-02-19 22:18:33,993 WARN L202 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2021-02-19 22:18:36,094 WARN L202 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 215 DAG size of output: 146 [2021-02-19 22:18:36,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:18:36,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:18:36,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:18:36,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:18:36,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:18:36,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 22:18:36,662 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-02-19 22:18:36,663 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:18:36,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:18:36,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1404753657, now seen corresponding path program 3 times [2021-02-19 22:18:36,663 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:18:36,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31864089] [2021-02-19 22:18:36,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:18:36,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:18:36,754 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:18:36,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31864089] [2021-02-19 22:18:36,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466726873] [2021-02-19 22:18:36,754 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 [2021-02-19 22:18:36,781 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-02-19 22:18:36,781 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:18:36,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-02-19 22:18:36,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:18:36,972 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:18:36,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:18:36,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-02-19 22:18:36,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165830589] [2021-02-19 22:18:36,973 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-02-19 22:18:36,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:18:36,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-02-19 22:18:36,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-02-19 22:18:36,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:18:36,974 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:18:36,974 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.55) internal successors, (51), 20 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) [2021-02-19 22:18:36,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:18:36,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:18:36,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:18:36,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:18:36,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:18:36,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 22:18:36,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:18:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:18:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:18:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:18:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:18:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:18:37,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 22:18:37,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:18:37,676 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable661,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:18:37,676 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:18:37,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:18:37,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1909403317, now seen corresponding path program 4 times [2021-02-19 22:18:37,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:18:37,677 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347332179] [2021-02-19 22:18:37,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:18:37,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:18:37,772 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:18:37,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347332179] [2021-02-19 22:18:37,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7711896] [2021-02-19 22:18:37,773 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) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:18:37,797 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-02-19 22:18:37,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:18:37,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjunts are in the unsatisfiable core [2021-02-19 22:18:37,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:18:37,938 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-19 22:18:37,939 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:18:37,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-02-19 22:18:37,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809698356] [2021-02-19 22:18:37,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-02-19 22:18:37,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:18:37,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-02-19 22:18:37,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-02-19 22:18:37,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:18:37,940 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:18:37,940 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.823529411764706) internal successors, (48), 17 states have internal predecessors, (48), 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) [2021-02-19 22:18:37,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:18:37,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:18:37,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:18:37,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:18:37,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:18:37,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 22:18:37,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:18:37,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:18:38,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:18:38,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:18:38,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:18:38,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:18:38,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:18:38,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 22:18:38,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:18:38,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:18:38,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable662 [2021-02-19 22:18:38,310 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:18:38,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:18:38,310 INFO L82 PathProgramCache]: Analyzing trace with hash 665523753, now seen corresponding path program 5 times [2021-02-19 22:18:38,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:18:38,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999387061] [2021-02-19 22:18:38,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:18:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:18:39,216 WARN L202 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2021-02-19 22:18:39,432 WARN L202 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 154 [2021-02-19 22:18:39,804 WARN L202 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2021-02-19 22:18:40,217 WARN L202 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 212 [2021-02-19 22:18:41,166 WARN L202 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 126 [2021-02-19 22:18:41,846 WARN L202 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 301 [2021-02-19 22:18:43,471 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 301 DAG size of output: 149 [2021-02-19 22:18:44,090 WARN L202 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 296 [2021-02-19 22:18:45,739 WARN L202 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 296 DAG size of output: 144 [2021-02-19 22:18:46,092 WARN L202 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 286 [2021-02-19 22:18:47,466 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 286 DAG size of output: 113 [2021-02-19 22:18:47,698 WARN L202 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 197 [2021-02-19 22:18:48,477 WARN L202 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 77 [2021-02-19 22:18:48,911 WARN L202 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 47 [2021-02-19 22:18:49,333 WARN L202 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 44 [2021-02-19 22:18:49,524 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:18:49,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999387061] [2021-02-19 22:18:49,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1663975164] [2021-02-19 22:18:49,524 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 [2021-02-19 22:18:49,560 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-02-19 22:18:49,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:18:49,561 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-02-19 22:18:49,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:18:50,077 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-02-19 22:18:51,869 WARN L202 SmtUtils]: Spent 1.46 s on a formula simplification that was a NOOP. DAG size: 119 [2021-02-19 22:18:53,714 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 355 [2021-02-19 22:18:56,153 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 364 [2021-02-19 22:18:58,196 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 365 [2021-02-19 22:19:00,387 WARN L202 SmtUtils]: Spent 1.53 s on a formula simplification that was a NOOP. DAG size: 367 [2021-02-19 22:19:02,468 WARN L202 SmtUtils]: Spent 1.56 s on a formula simplification that was a NOOP. DAG size: 366 [2021-02-19 22:19:04,267 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 380 [2021-02-19 22:19:06,673 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification that was a NOOP. DAG size: 379 [2021-02-19 22:19:07,618 INFO L446 ElimStorePlain]: Different costs {9=[v_prenex_120, v_prenex_122, v_prenex_100, v_prenex_124, v_prenex_102, v_prenex_90, v_prenex_126, v_prenex_104, v_prenex_128, v_prenex_106, v_prenex_94, v_prenex_92, v_prenex_98, v_prenex_96, v_prenex_79, v_prenex_77, v_prenex_130, v_prenex_132, v_prenex_110, v_prenex_134, v_prenex_112, v_prenex_114, v_prenex_136, v_prenex_116, v_prenex_138, v_prenex_108, v_prenex_81, v_prenex_86, v_prenex_84, v_prenex_88], 15=[v_prenex_118, A]} [2021-02-19 22:19:07,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:07,662 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:07,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:07,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:07,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:07,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:07,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-02-19 22:19:07,707 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:07,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:07,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:07,746 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:07,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:07,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:07,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2021-02-19 22:19:07,754 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:18,364 WARN L202 SmtUtils]: Spent 10.61 s on a formula simplification. DAG size of input: 807 DAG size of output: 753 [2021-02-19 22:19:18,366 INFO L628 ElimStorePlain]: treesize reduction 1220, result has 68.9 percent of original size [2021-02-19 22:19:18,399 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:18,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:18,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:18,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:18,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:18,411 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:18,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-02-19 22:19:18,450 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:18,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:18,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:18,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:18,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:18,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-02-19 22:19:18,500 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:22,726 WARN L202 SmtUtils]: Spent 4.23 s on a formula simplification that was a NOOP. DAG size: 739 [2021-02-19 22:19:22,727 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:19:22,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:22,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:22,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:22,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:22,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-02-19 22:19:22,830 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:22,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:22,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:22,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:22,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:22,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:22,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-02-19 22:19:22,889 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:27,184 WARN L202 SmtUtils]: Spent 4.29 s on a formula simplification that was a NOOP. DAG size: 724 [2021-02-19 22:19:27,185 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:19:27,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:27,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:27,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:27,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:27,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-02-19 22:19:27,278 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:27,310 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:27,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:27,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:27,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:27,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:27,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-02-19 22:19:27,330 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:31,580 WARN L202 SmtUtils]: Spent 4.25 s on a formula simplification that was a NOOP. DAG size: 707 [2021-02-19 22:19:31,582 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:19:31,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:31,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:31,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:31,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:31,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-02-19 22:19:31,679 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:31,715 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:31,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:31,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:31,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:31,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:31,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2021-02-19 22:19:31,739 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:36,162 WARN L202 SmtUtils]: Spent 4.42 s on a formula simplification that was a NOOP. DAG size: 690 [2021-02-19 22:19:36,163 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:19:36,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:36,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:36,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:36,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:36,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:36,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-02-19 22:19:36,214 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:40,723 WARN L202 SmtUtils]: Spent 4.51 s on a formula simplification that was a NOOP. DAG size: 677 [2021-02-19 22:19:40,725 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:19:40,757 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:40,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:40,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:40,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:40,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:40,775 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:40,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-02-19 22:19:40,824 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:40,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:40,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:40,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:40,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:40,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-02-19 22:19:40,876 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:45,479 WARN L202 SmtUtils]: Spent 4.60 s on a formula simplification that was a NOOP. DAG size: 662 [2021-02-19 22:19:45,481 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:19:45,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:45,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:45,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:45,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:45,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:45,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:45,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2021-02-19 22:19:45,588 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:45,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:45,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:45,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:45,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:45,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-02-19 22:19:45,641 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:50,072 WARN L202 SmtUtils]: Spent 4.43 s on a formula simplification that was a NOOP. DAG size: 646 [2021-02-19 22:19:50,073 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:19:50,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:50,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:50,119 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:50,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:50,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:50,140 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:50,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 28 [2021-02-19 22:19:50,197 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:50,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:50,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:50,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:50,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:50,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-02-19 22:19:50,254 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:54,555 WARN L202 SmtUtils]: Spent 4.30 s on a formula simplification that was a NOOP. DAG size: 629 [2021-02-19 22:19:54,556 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:19:54,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:54,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:54,597 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:54,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:54,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:54,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2021-02-19 22:19:54,613 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:59,016 WARN L202 SmtUtils]: Spent 4.40 s on a formula simplification that was a NOOP. DAG size: 614 [2021-02-19 22:19:59,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:19:59,049 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:59,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:59,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:59,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:59,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:59,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:19:59,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-02-19 22:19:59,123 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-02-19 22:19:59,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:59,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:59,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:59,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:19:59,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-02-19 22:19:59,176 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:04,008 WARN L202 SmtUtils]: Spent 4.83 s on a formula simplification that was a NOOP. DAG size: 597 [2021-02-19 22:20:04,009 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:04,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:04,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:04,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:04,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:04,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 22 [2021-02-19 22:20:04,115 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:04,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:04,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:04,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:04,160 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:04,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:04,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2021-02-19 22:20:04,174 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:08,593 WARN L202 SmtUtils]: Spent 4.42 s on a formula simplification that was a NOOP. DAG size: 580 [2021-02-19 22:20:08,595 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:08,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:08,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:08,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:08,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:08,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-02-19 22:20:08,706 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:08,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:08,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:08,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:08,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:08,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:08,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-02-19 22:20:08,761 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:13,095 WARN L202 SmtUtils]: Spent 4.33 s on a formula simplification that was a NOOP. DAG size: 564 [2021-02-19 22:20:13,096 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:13,127 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:13,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:13,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:13,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:13,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:13,145 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:13,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2021-02-19 22:20:13,202 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:13,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:13,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:13,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:13,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:13,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-02-19 22:20:13,256 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:16,949 WARN L202 SmtUtils]: Spent 3.69 s on a formula simplification that was a NOOP. DAG size: 547 [2021-02-19 22:20:16,950 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:16,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:16,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:16,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:16,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:17,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:17,005 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:17,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-02-19 22:20:17,011 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:20,667 WARN L202 SmtUtils]: Spent 3.66 s on a formula simplification that was a NOOP. DAG size: 532 [2021-02-19 22:20:20,668 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:20,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:20,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:20,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:20,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:20,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:20,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-02-19 22:20:20,719 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:24,370 WARN L202 SmtUtils]: Spent 3.65 s on a formula simplification that was a NOOP. DAG size: 517 [2021-02-19 22:20:24,371 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:24,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:24,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:24,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:24,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:24,413 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:24,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:24,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-02-19 22:20:24,425 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:28,023 WARN L202 SmtUtils]: Spent 3.60 s on a formula simplification that was a NOOP. DAG size: 502 [2021-02-19 22:20:28,024 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:28,051 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:28,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:28,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:28,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:28,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:28,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 25 [2021-02-19 22:20:28,073 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:31,623 WARN L202 SmtUtils]: Spent 3.55 s on a formula simplification that was a NOOP. DAG size: 487 [2021-02-19 22:20:31,624 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:31,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:31,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:31,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:31,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:31,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:31,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-02-19 22:20:31,673 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:35,137 WARN L202 SmtUtils]: Spent 3.46 s on a formula simplification that was a NOOP. DAG size: 472 [2021-02-19 22:20:35,138 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:35,165 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:35,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:35,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:35,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:35,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:35,191 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:35,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-02-19 22:20:35,258 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:35,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:35,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:35,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:35,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:35,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-02-19 22:20:35,310 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:38,727 WARN L202 SmtUtils]: Spent 3.42 s on a formula simplification that was a NOOP. DAG size: 455 [2021-02-19 22:20:38,728 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:38,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:38,759 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:38,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:38,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:38,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:38,779 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:38,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 28 [2021-02-19 22:20:38,828 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:38,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:38,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:38,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:38,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:38,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-02-19 22:20:38,876 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:42,164 WARN L202 SmtUtils]: Spent 3.29 s on a formula simplification that was a NOOP. DAG size: 438 [2021-02-19 22:20:42,166 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:42,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:42,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:42,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:42,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:42,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:42,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-02-19 22:20:42,220 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:45,509 WARN L202 SmtUtils]: Spent 3.29 s on a formula simplification that was a NOOP. DAG size: 423 [2021-02-19 22:20:45,510 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:45,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:45,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:45,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:45,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:45,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:45,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-02-19 22:20:45,568 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:48,678 WARN L202 SmtUtils]: Spent 3.11 s on a formula simplification that was a NOOP. DAG size: 408 [2021-02-19 22:20:48,679 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:48,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:48,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:48,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:48,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:48,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:48,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:48,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-02-19 22:20:48,772 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:48,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:48,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:48,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:48,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:48,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-02-19 22:20:48,819 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:51,790 WARN L202 SmtUtils]: Spent 2.97 s on a formula simplification that was a NOOP. DAG size: 391 [2021-02-19 22:20:51,791 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:51,816 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:51,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:51,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:51,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:51,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:51,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2021-02-19 22:20:51,843 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:54,675 WARN L202 SmtUtils]: Spent 2.83 s on a formula simplification that was a NOOP. DAG size: 376 [2021-02-19 22:20:54,676 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:54,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:54,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:54,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:54,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:54,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:54,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-02-19 22:20:54,721 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-02-19 22:20:57,500 WARN L202 SmtUtils]: Spent 2.78 s on a formula simplification that was a NOOP. DAG size: 361 [2021-02-19 22:20:57,501 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:20:57,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:20:57,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:57,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:57,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:57,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:20:57,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-02-19 22:20:57,547 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-02-19 22:21:00,354 WARN L202 SmtUtils]: Spent 2.81 s on a formula simplification that was a NOOP. DAG size: 346 [2021-02-19 22:21:00,356 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:21:00,378 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:21:00,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:00,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:00,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:00,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:00,395 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:21:00,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 28 [2021-02-19 22:21:00,447 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-02-19 22:21:00,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:00,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:00,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:00,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:00,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-02-19 22:21:00,492 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-02-19 22:21:03,244 WARN L202 SmtUtils]: Spent 2.75 s on a formula simplification that was a NOOP. DAG size: 329 [2021-02-19 22:21:03,245 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:21:03,273 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:21:03,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:03,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:03,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:03,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:03,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-02-19 22:21:03,294 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-02-19 22:21:05,823 WARN L202 SmtUtils]: Spent 2.53 s on a formula simplification that was a NOOP. DAG size: 314 [2021-02-19 22:21:05,824 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:21:05,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:21:05,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:05,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:05,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:05,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:05,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 25 [2021-02-19 22:21:05,871 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-02-19 22:21:08,299 WARN L202 SmtUtils]: Spent 2.43 s on a formula simplification that was a NOOP. DAG size: 299 [2021-02-19 22:21:08,301 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:21:08,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:08,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:08,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:08,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:08,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:08,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:08,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:08,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:08,352 INFO L173 IndexEqualityManager]: detected equality via solver [2021-02-19 22:21:08,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:08,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:08,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:08,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-02-19 22:21:08,373 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-02-19 22:21:10,734 WARN L202 SmtUtils]: Spent 2.36 s on a formula simplification that was a NOOP. DAG size: 283 [2021-02-19 22:21:10,735 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:21:10,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:10,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:10,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:10,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:10,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:10,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:10,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:10,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:10,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:10,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-02-19 22:21:10,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-02-19 22:21:10,813 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-02-19 22:21:13,150 WARN L202 SmtUtils]: Spent 2.34 s on a formula simplification that was a NOOP. DAG size: 270 [2021-02-19 22:21:13,151 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-02-19 22:21:13,206 INFO L550 ElimStorePlain]: Start of recursive call 1: 64 dim-0 vars, 32 dim-1 vars, End of recursive call: and 23 xjuncts. [2021-02-19 22:21:13,206 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 96 variables, input treesize:4005, output treesize:246 [2021-02-19 22:21:13,841 WARN L202 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 20 [2021-02-19 22:21:13,983 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:21:13,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:21:13,983 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-02-19 22:21:13,983 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466599398] [2021-02-19 22:21:13,983 INFO L460 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-02-19 22:21:13,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:21:13,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-02-19 22:21:13,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=895, Unknown=0, NotChecked=0, Total=992 [2021-02-19 22:21:13,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:21:13,984 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:21:13,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.3125) internal successors, (74), 32 states have internal predecessors, (74), 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) [2021-02-19 22:21:13,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:21:13,984 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:21:13,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:21:13,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:21:13,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:21:13,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 22:21:13,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:21:13,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:21:13,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:21:15,051 WARN L202 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 36 [2021-02-19 22:21:15,396 WARN L202 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2021-02-19 22:21:16,493 WARN L202 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 49 [2021-02-19 22:21:17,014 WARN L202 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 46 [2021-02-19 22:21:18,537 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 131 DAG size of output: 58 [2021-02-19 22:21:19,278 WARN L202 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 62 [2021-02-19 22:21:20,783 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 164 DAG size of output: 64 [2021-02-19 22:21:22,113 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 178 DAG size of output: 85 [2021-02-19 22:21:30,551 WARN L202 SmtUtils]: Spent 7.93 s on a formula simplification. DAG size of input: 553 DAG size of output: 203 [2021-02-19 22:21:39,507 WARN L202 SmtUtils]: Spent 8.51 s on a formula simplification. DAG size of input: 239 DAG size of output: 123 [2021-02-19 22:21:55,695 WARN L202 SmtUtils]: Spent 15.74 s on a formula simplification. DAG size of input: 541 DAG size of output: 304 [2021-02-19 22:21:57,315 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 150 [2021-02-19 22:21:58,705 WARN L202 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-02-19 22:22:00,721 WARN L202 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-02-19 22:22:04,214 WARN L202 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2021-02-19 22:22:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:22:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:22:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:22:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:22:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:22:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 22:22:04,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:22:04,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:22:04,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 22:22:04,641 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable663 [2021-02-19 22:22:04,641 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:22:04,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:22:04,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1742246973, now seen corresponding path program 6 times [2021-02-19 22:22:04,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:22:04,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638291225] [2021-02-19 22:22:04,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:22:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:22:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:22:05,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638291225] [2021-02-19 22:22:05,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1329919622] [2021-02-19 22:22:05,063 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 [2021-02-19 22:22:05,095 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-02-19 22:22:05,095 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-02-19 22:22:05,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 16 conjunts are in the unsatisfiable core [2021-02-19 22:22:05,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-02-19 22:22:06,160 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-19 22:22:06,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-02-19 22:22:06,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-02-19 22:22:06,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616157905] [2021-02-19 22:22:06,161 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-02-19 22:22:06,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-02-19 22:22:06,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-02-19 22:22:06,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-02-19 22:22:06,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:22:06,163 INFO L480 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-02-19 22:22:06,163 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.3793103448275863) internal successors, (69), 29 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-02-19 22:22:06,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:22:06,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:22:06,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:22:06,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:22:06,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:22:06,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-02-19 22:22:06,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:22:06,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:22:06,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-02-19 22:22:06,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-02-19 22:22:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-02-19 22:22:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-02-19 22:22:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-02-19 22:22:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-19 22:22:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-02-19 22:22:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-19 22:22:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-19 22:22:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-19 22:22:06,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-02-19 22:22:06,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-02-19 22:22:07,082 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable819,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-02-19 22:22:07,082 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-02-19 22:22:07,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-19 22:22:07,083 INFO L82 PathProgramCache]: Analyzing trace with hash -663358815, now seen corresponding path program 7 times [2021-02-19 22:22:07,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-02-19 22:22:07,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640589674] [2021-02-19 22:22:07,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-19 22:22:07,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-19 22:22:10,062 WARN L202 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 35 [2021-02-19 22:22:10,288 WARN L202 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 29 [2021-02-19 22:22:10,423 WARN L202 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 65 [2021-02-19 22:22:11,144 WARN L202 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2021-02-19 22:23:30,990 WARN L202 SmtUtils]: Spent 1.33 m on a formula simplification. DAG size of input: 278 DAG size of output: 163 [2021-02-19 22:23:33,328 WARN L202 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 162 DAG size of output: 83 [2021-02-19 22:25:24,119 WARN L202 SmtUtils]: Spent 1.85 m on a formula simplification. DAG size of input: 482 DAG size of output: 330 [2021-02-19 22:25:29,872 WARN L202 SmtUtils]: Spent 5.62 s on a formula simplification. DAG size of input: 330 DAG size of output: 132 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown