/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 07:20:14,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 07:20:14,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 07:20:14,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 07:20:14,310 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-06-17 07:20:14,337 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 07:20:14,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 07:20:14,337 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 07:20:14,337 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 07:20:14,339 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 07:20:14,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 07:20:14,339 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 07:20:14,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 07:20:14,340 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 07:20:14,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 07:20:14,341 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 07:20:14,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 07:20:14,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 07:20:14,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 07:20:14,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 07:20:14,341 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 07:20:14,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 07:20:14,342 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 07:20:14,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 07:20:14,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 07:20:14,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 07:20:14,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 07:20:14,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 07:20:14,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 07:20:14,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 07:20:14,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 07:20:14,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 07:20:14,343 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 07:20:14,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 07:20:14,343 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 07:20:14,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 07:20:14,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 07:20:14,356 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 07:20:14,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 07:20:14,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 07:20:14,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 07:20:14,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 07:20:14,835 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 07:20:14,835 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 07:20:14,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array-hom.wvr.bpl [2021-06-17 07:20:14,836 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array-hom.wvr.bpl' [2021-06-17 07:20:14,874 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 07:20:14,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 07:20:14,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 07:20:14,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 07:20:14,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 07:20:14,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:20:14" (1/1) ... [2021-06-17 07:20:14,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:20:14" (1/1) ... [2021-06-17 07:20:14,918 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 07:20:14,920 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 07:20:14,920 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 07:20:14,920 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 07:20:14,925 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:20:14" (1/1) ... [2021-06-17 07:20:14,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:20:14" (1/1) ... [2021-06-17 07:20:14,926 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:20:14" (1/1) ... [2021-06-17 07:20:14,926 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:20:14" (1/1) ... [2021-06-17 07:20:14,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:20:14" (1/1) ... [2021-06-17 07:20:14,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:20:14" (1/1) ... [2021-06-17 07:20:14,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:20:14" (1/1) ... [2021-06-17 07:20:14,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 07:20:14,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 07:20:14,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 07:20:14,949 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 07:20:14,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:20:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 07:20:15,075 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 07:20:15,075 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 07:20:15,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 07:20:15,076 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 07:20:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 07:20:15,076 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 07:20:15,076 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 07:20:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 07:20:15,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 07:20:15,076 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 07:20:15,076 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 07:20:15,077 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 07:20:15,077 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 07:20:15,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 07:20:15,349 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 07:20:15,351 INFO L202 PluginConnector]: Adding new model max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 07:20:15 BoogieIcfgContainer [2021-06-17 07:20:15,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 07:20:15,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 07:20:15,352 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 07:20:15,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 07:20:15,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 07:20:14" (1/2) ... [2021-06-17 07:20:15,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@690d834b and model type max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 07:20:15, skipping insertion in model container [2021-06-17 07:20:15,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 07:20:15" (2/2) ... [2021-06-17 07:20:15,356 INFO L111 eAbstractionObserver]: Analyzing ICFG max-array-hom.wvr.bpl [2021-06-17 07:20:15,359 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 07:20:15,359 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 07:20:15,359 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 07:20:15,360 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 07:20:15,455 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-17 07:20:15,476 INFO L255 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) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 07:20:15,542 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 07:20:15,554 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 07:20:15,555 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 07:20:15,555 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 07:20:15,571 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 07:20:15,571 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 07:20:15,571 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 07:20:15,572 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 07:20:15,687 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:20:15,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:20:15,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1685831996, now seen corresponding path program 1 times [2021-06-17 07:20:15,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:20:15,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461806046] [2021-06-17 07:20:15,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:20:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:20:15,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:20:15,872 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:20:15,872 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461806046] [2021-06-17 07:20:15,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461806046] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 07:20:15,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 07:20:15,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-17 07:20:15,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69709435] [2021-06-17 07:20:15,877 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-17 07:20:15,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:20:15,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-17 07:20:15,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-17 07:20:15,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:15,888 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:20:15,889 INFO L483 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) [2021-06-17 07:20:15,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:15,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:15,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 07:20:15,927 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:20:15,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:20:15,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1860946394, now seen corresponding path program 1 times [2021-06-17 07:20:15,929 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:20:15,930 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978237293] [2021-06-17 07:20:15,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:20:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:20:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:20:15,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:20:15,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978237293] [2021-06-17 07:20:15,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978237293] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 07:20:15,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 07:20:15,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 07:20:15,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056575439] [2021-06-17 07:20:15,990 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 07:20:15,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:20:15,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 07:20:15,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-17 07:20:15,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:15,991 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:20:15,992 INFO L483 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) [2021-06-17 07:20:15,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:15,992 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:16,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:16,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:16,065 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-17 07:20:16,065 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:20:16,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:20:16,066 INFO L82 PathProgramCache]: Analyzing trace with hash 2099964152, now seen corresponding path program 1 times [2021-06-17 07:20:16,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:20:16,066 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122303694] [2021-06-17 07:20:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:20:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:20:16,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:20:16,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:20:16,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122303694] [2021-06-17 07:20:16,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122303694] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:16,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [347195505] [2021-06-17 07:20:16,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:20:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:20:16,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-17 07:20:16,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:20:17,072 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 [2021-06-17 07:20:17,074 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:17,079 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 [2021-06-17 07:20:17,079 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:17,082 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 [2021-06-17 07:20:17,083 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:17,104 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:17,106 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 07:20:17,106 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:103, output treesize:21 [2021-06-17 07:20:17,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:20:17,177 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [347195505] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:17,177 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:20:17,177 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-17 07:20:17,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055410994] [2021-06-17 07:20:17,178 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 07:20:17,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:20:17,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 07:20:17,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-17 07:20:17,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:17,193 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:20:17,194 INFO L483 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) [2021-06-17 07:20:17,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:17,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:17,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:17,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:17,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:17,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:20:17,608 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:20:17,609 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:20:17,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:20:17,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1225355926, now seen corresponding path program 2 times [2021-06-17 07:20:17,609 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:20:17,609 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663225413] [2021-06-17 07:20:17,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:20:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:20:17,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:20:17,675 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:20:17,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663225413] [2021-06-17 07:20:17,675 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663225413] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:17,675 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1527734901] [2021-06-17 07:20:17,675 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 [2021-06-17 07:20:17,705 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 07:20:17,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:20:17,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 07:20:17,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:20:17,851 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:20:17,851 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1527734901] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:17,854 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:20:17,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-06-17 07:20:17,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466259770] [2021-06-17 07:20:17,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 07:20:17,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:20:17,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 07:20:17,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-06-17 07:20:17,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:17,857 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:20:17,857 INFO L483 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) [2021-06-17 07:20:17,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:17,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:17,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:20:17,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:18,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:20:18,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:20:18,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:20:18,213 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:20:18,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:20:18,213 INFO L82 PathProgramCache]: Analyzing trace with hash 661666650, now seen corresponding path program 1 times [2021-06-17 07:20:18,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:20:18,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698554878] [2021-06-17 07:20:18,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:20:18,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:20:18,262 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:20:18,262 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:20:18,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698554878] [2021-06-17 07:20:18,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698554878] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:18,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152765122] [2021-06-17 07:20:18,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:20:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:20:18,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 07:20:18,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:20:18,369 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:20:18,369 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152765122] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:18,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:20:18,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-17 07:20:18,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154472894] [2021-06-17 07:20:18,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-17 07:20:18,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:20:18,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-17 07:20:18,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-06-17 07:20:18,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:18,370 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:20:18,370 INFO L483 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) [2021-06-17 07:20:18,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:18,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:18,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:20:18,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:20:18,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:18,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:18,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:18,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:20:18,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:20:18,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:20:18,670 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:20:18,671 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:20:18,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:20:18,671 INFO L82 PathProgramCache]: Analyzing trace with hash -258173320, now seen corresponding path program 2 times [2021-06-17 07:20:18,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:20:18,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026332428] [2021-06-17 07:20:18,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:20:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:20:19,190 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 59 [2021-06-17 07:20:19,425 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-06-17 07:20:19,677 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-06-17 07:20:19,882 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2021-06-17 07:20:20,069 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2021-06-17 07:20:20,196 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:20:20,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:20:20,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026332428] [2021-06-17 07:20:20,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026332428] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:20,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065753685] [2021-06-17 07:20:20,197 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 [2021-06-17 07:20:20,235 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 07:20:20,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:20:20,236 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 41 conjunts are in the unsatisfiable core [2021-06-17 07:20:20,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:20:21,490 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-06-17 07:20:23,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:23,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:23,103 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-17 07:20:23,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 45 [2021-06-17 07:20:23,123 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:23,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:23,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:23,205 INFO L354 Elim1Store]: treesize reduction 30, result has 33.3 percent of original size [2021-06-17 07:20:23,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 36 [2021-06-17 07:20:23,208 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:24,879 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification that was a NOOP. DAG size: 350 [2021-06-17 07:20:24,879 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:24,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:24,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:24,972 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-17 07:20:24,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 35 [2021-06-17 07:20:24,977 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:24,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:25,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:25,055 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-17 07:20:25,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 50 [2021-06-17 07:20:25,065 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:26,616 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 341 [2021-06-17 07:20:26,617 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:26,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:26,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:26,700 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:26,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 69 [2021-06-17 07:20:26,735 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:26,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:26,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:26,813 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-17 07:20:26,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 48 [2021-06-17 07:20:26,822 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:29,783 WARN L205 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 339 DAG size of output: 333 [2021-06-17 07:20:29,784 INFO L628 ElimStorePlain]: treesize reduction 16, result has 99.2 percent of original size [2021-06-17 07:20:29,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:29,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:29,867 INFO L354 Elim1Store]: treesize reduction 30, result has 33.3 percent of original size [2021-06-17 07:20:29,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 36 [2021-06-17 07:20:29,870 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:29,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:29,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:29,958 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-17 07:20:29,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 57 [2021-06-17 07:20:29,977 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:31,386 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 320 [2021-06-17 07:20:31,387 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:31,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:31,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:31,481 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-17 07:20:31,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 54 [2021-06-17 07:20:31,500 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:31,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:31,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:31,579 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-17 07:20:31,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 47 treesize of output 53 [2021-06-17 07:20:31,584 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:32,954 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 313 [2021-06-17 07:20:32,955 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:32,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:32,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:33,028 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-17 07:20:33,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 34 [2021-06-17 07:20:33,031 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:33,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:33,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:33,093 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-17 07:20:33,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 39 [2021-06-17 07:20:33,098 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:34,442 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 302 [2021-06-17 07:20:34,442 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:34,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:34,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:34,518 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-17 07:20:34,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 40 [2021-06-17 07:20:34,523 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:34,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:34,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:34,578 INFO L354 Elim1Store]: treesize reduction 30, result has 33.3 percent of original size [2021-06-17 07:20:34,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 39 [2021-06-17 07:20:34,580 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:35,826 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 290 [2021-06-17 07:20:35,826 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:35,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:35,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:35,921 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-17 07:20:35,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 57 [2021-06-17 07:20:35,940 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:35,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:35,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:35,991 INFO L354 Elim1Store]: treesize reduction 30, result has 33.3 percent of original size [2021-06-17 07:20:35,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 36 [2021-06-17 07:20:35,993 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:38,480 WARN L205 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 289 DAG size of output: 288 [2021-06-17 07:20:38,481 INFO L628 ElimStorePlain]: treesize reduction 5, result has 99.7 percent of original size [2021-06-17 07:20:38,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:38,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:38,562 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:38,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 28 treesize of output 60 [2021-06-17 07:20:38,584 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:38,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:38,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:38,633 INFO L354 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2021-06-17 07:20:38,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 31 [2021-06-17 07:20:38,637 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:39,829 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 273 [2021-06-17 07:20:39,829 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:39,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:39,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:39,902 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:39,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 69 [2021-06-17 07:20:39,932 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:39,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:39,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:40,010 INFO L354 Elim1Store]: treesize reduction 4, result has 91.1 percent of original size [2021-06-17 07:20:40,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 62 [2021-06-17 07:20:40,027 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:42,276 WARN L205 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 265 DAG size of output: 259 [2021-06-17 07:20:42,277 INFO L628 ElimStorePlain]: treesize reduction 16, result has 99.1 percent of original size [2021-06-17 07:20:42,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:42,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:42,345 INFO L354 Elim1Store]: treesize reduction 24, result has 46.7 percent of original size [2021-06-17 07:20:42,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 45 [2021-06-17 07:20:42,347 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:42,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:42,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:42,391 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-17 07:20:42,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 38 [2021-06-17 07:20:42,393 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:43,478 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 248 [2021-06-17 07:20:43,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:43,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:43,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:43,550 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-17 07:20:43,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 47 treesize of output 53 [2021-06-17 07:20:43,555 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:43,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:43,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:43,599 INFO L354 Elim1Store]: treesize reduction 28, result has 37.8 percent of original size [2021-06-17 07:20:43,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 42 treesize of output 38 [2021-06-17 07:20:43,612 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:44,627 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 238 [2021-06-17 07:20:44,628 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:44,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:44,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:44,689 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-17 07:20:44,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 40 treesize of output 50 [2021-06-17 07:20:44,695 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:44,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:44,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:44,738 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-06-17 07:20:44,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 35 treesize of output 37 [2021-06-17 07:20:44,743 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:45,745 WARN L205 SmtUtils]: Spent 1.00 s on a formula simplification that was a NOOP. DAG size: 225 [2021-06-17 07:20:45,745 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:45,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:45,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:45,815 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-17 07:20:45,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 57 [2021-06-17 07:20:45,828 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:45,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:45,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:45,885 INFO L354 Elim1Store]: treesize reduction 16, result has 64.4 percent of original size [2021-06-17 07:20:45,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 46 treesize of output 50 [2021-06-17 07:20:45,891 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:46,818 WARN L205 SmtUtils]: Spent 926.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-06-17 07:20:46,819 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:46,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:46,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:46,879 INFO L354 Elim1Store]: treesize reduction 14, result has 68.9 percent of original size [2021-06-17 07:20:46,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 33 treesize of output 49 [2021-06-17 07:20:46,895 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:46,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:46,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:46,945 INFO L354 Elim1Store]: treesize reduction 18, result has 60.0 percent of original size [2021-06-17 07:20:46,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 38 treesize of output 48 [2021-06-17 07:20:46,954 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:47,838 WARN L205 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 199 [2021-06-17 07:20:47,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:47,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:47,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:47,897 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-06-17 07:20:47,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 57 [2021-06-17 07:20:47,911 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:47,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:47,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:20:47,946 INFO L354 Elim1Store]: treesize reduction 30, result has 33.3 percent of original size [2021-06-17 07:20:47,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 44 treesize of output 36 [2021-06-17 07:20:47,948 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-17 07:20:48,763 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-06-17 07:20:48,763 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:20:49,006 INFO L550 ElimStorePlain]: Start of recursive call 1: 17 dim-0 vars, 16 dim-1 vars, End of recursive call: and 32 xjuncts. [2021-06-17 07:20:49,007 INFO L247 ElimStorePlain]: Needed 33 recursive calls to eliminate 33 variables, input treesize:2233, output treesize:2097 [2021-06-17 07:20:49,640 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 59 [2021-06-17 07:20:49,794 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:20:49,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065753685] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:49,794 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:20:49,794 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 25 [2021-06-17 07:20:49,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128070163] [2021-06-17 07:20:49,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-06-17 07:20:49,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:20:49,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-06-17 07:20:49,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2021-06-17 07:20:49,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:49,795 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:20:49,796 INFO L483 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) [2021-06-17 07:20:49,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:49,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:49,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:20:49,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:20:49,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:20:49,796 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:50,296 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 63 [2021-06-17 07:20:50,618 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2021-06-17 07:20:50,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:50,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:50,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:20:50,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:20:50,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:20:50,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:20:50,925 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-17 07:20:50,925 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:20:50,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:20:50,926 INFO L82 PathProgramCache]: Analyzing trace with hash 538878486, now seen corresponding path program 3 times [2021-06-17 07:20:50,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:20:50,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582159632] [2021-06-17 07:20:50,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:20:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:20:50,993 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:20:50,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:20:50,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582159632] [2021-06-17 07:20:50,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582159632] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:50,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890846479] [2021-06-17 07:20:50,994 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 [2021-06-17 07:20:51,033 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-17 07:20:51,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:20:51,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 07:20:51,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:20:51,184 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:20:51,185 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890846479] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:51,185 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:20:51,185 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 20 [2021-06-17 07:20:51,185 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550091789] [2021-06-17 07:20:51,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-17 07:20:51,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:20:51,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-17 07:20:51,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=307, Unknown=0, NotChecked=0, Total=380 [2021-06-17 07:20:51,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:51,186 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:20:51,186 INFO L483 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) [2021-06-17 07:20:51,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:51,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:51,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:20:51,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:20:51,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:20:51,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:20:51,186 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:51,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:51,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:51,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:20:51,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:20:51,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:20:51,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:20:51,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:20:51,650 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable276,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:20:51,651 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:20:51,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:20:51,651 INFO L82 PathProgramCache]: Analyzing trace with hash 157395674, now seen corresponding path program 4 times [2021-06-17 07:20:51,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:20:51,651 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967768629] [2021-06-17 07:20:51,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:20:51,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:20:51,721 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:20:51,721 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:20:51,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967768629] [2021-06-17 07:20:51,721 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967768629] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:51,721 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196728891] [2021-06-17 07:20:51,721 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 [2021-06-17 07:20:51,759 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 07:20:51,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:20:51,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-17 07:20:51,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:20:51,863 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 07:20:51,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196728891] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:20:51,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:20:51,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-17 07:20:51,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519316013] [2021-06-17 07:20:51,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-17 07:20:51,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:20:51,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-17 07:20:51,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-17 07:20:51,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:51,866 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:20:51,866 INFO L483 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) [2021-06-17 07:20:51,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:51,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:51,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:20:51,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:20:51,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:20:51,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:20:51,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:20:51,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:20:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:20:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:20:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:20:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:20:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:20:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:20:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:20:51,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:20:52,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable277 [2021-06-17 07:20:52,193 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:20:52,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:20:52,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1710749704, now seen corresponding path program 5 times [2021-06-17 07:20:52,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:20:52,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459608571] [2021-06-17 07:20:52,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:20:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:20:53,328 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 99 [2021-06-17 07:20:53,574 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 53 [2021-06-17 07:20:53,778 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 191 [2021-06-17 07:20:54,118 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 89 [2021-06-17 07:20:56,918 WARN L205 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 320 DAG size of output: 295 [2021-06-17 07:20:57,689 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 295 DAG size of output: 131 [2021-06-17 07:21:01,255 WARN L205 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 310 DAG size of output: 299 [2021-06-17 07:21:02,133 WARN L205 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 150 [2021-06-17 07:21:05,138 WARN L205 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 305 DAG size of output: 293 [2021-06-17 07:21:06,002 WARN L205 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 145 [2021-06-17 07:21:07,667 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 258 DAG size of output: 258 [2021-06-17 07:21:08,412 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 258 DAG size of output: 118 [2021-06-17 07:21:10,075 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 201 DAG size of output: 170 [2021-06-17 07:21:10,427 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 66 [2021-06-17 07:21:11,468 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 159 DAG size of output: 107 [2021-06-17 07:21:11,654 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 43 [2021-06-17 07:21:12,634 WARN L205 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 104 [2021-06-17 07:21:12,810 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 40 [2021-06-17 07:21:13,078 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:21:13,078 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:21:13,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459608571] [2021-06-17 07:21:13,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459608571] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:21:13,078 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628926059] [2021-06-17 07:21:13,078 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 [2021-06-17 07:21:13,129 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-17 07:21:13,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:21:13,130 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-06-17 07:21:13,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:21:14,919 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification that was a NOOP. DAG size: 119 [2021-06-17 07:21:16,337 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 355 [2021-06-17 07:21:18,471 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 364 [2021-06-17 07:21:20,226 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 365 [2021-06-17 07:21:22,005 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 367 [2021-06-17 07:21:23,586 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 366 [2021-06-17 07:21:25,040 WARN L205 SmtUtils]: Spent 929.00 ms on a formula simplification that was a NOOP. DAG size: 380 [2021-06-17 07:21:26,984 WARN L205 SmtUtils]: Spent 883.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2021-06-17 07:21:27,716 INFO L446 ElimStorePlain]: Different costs {9=[v_prenex_160, v_prenex_162, v_prenex_140, v_prenex_120, v_prenex_142, v_prenex_164, v_prenex_144, v_prenex_166, v_prenex_122, v_prenex_146, v_prenex_124, v_prenex_168, v_prenex_126, v_prenex_148, v_prenex_128, v_prenex_150, v_prenex_130, v_prenex_154, v_prenex_132, v_prenex_111, v_prenex_134, v_prenex_156, v_prenex_158, v_prenex_114, v_prenex_136, v_prenex_138, v_prenex_116, v_prenex_107, A, v_prenex_109], 15=[v_prenex_118, v_prenex_152]} [2021-06-17 07:21:27,764 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:27,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:27,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:27,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:27,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:27,773 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:27,797 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 [2021-06-17 07:21:27,799 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:27,832 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:27,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:27,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:27,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:27,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:27,839 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 48 treesize of output 28 [2021-06-17 07:21:27,841 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:34,813 WARN L205 SmtUtils]: Spent 6.97 s on a formula simplification. DAG size of input: 807 DAG size of output: 753 [2021-06-17 07:21:34,815 INFO L628 ElimStorePlain]: treesize reduction 1224, result has 68.9 percent of original size [2021-06-17 07:21:34,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:34,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:34,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:34,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:34,871 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 [2021-06-17 07:21:34,873 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:34,909 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:34,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:34,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:34,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:34,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:34,916 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 [2021-06-17 07:21:34,918 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:37,706 WARN L205 SmtUtils]: Spent 2.79 s on a formula simplification that was a NOOP. DAG size: 739 [2021-06-17 07:21:37,706 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:37,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:37,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:37,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:37,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:37,767 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 [2021-06-17 07:21:37,769 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:37,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:37,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:37,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:37,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:37,808 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:37,809 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 [2021-06-17 07:21:37,810 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:40,462 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification that was a NOOP. DAG size: 723 [2021-06-17 07:21:40,462 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:40,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:40,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:40,495 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:40,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:40,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:40,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:40,517 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 [2021-06-17 07:21:40,519 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:40,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:40,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:40,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:40,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:40,555 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 [2021-06-17 07:21:40,557 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:43,083 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification that was a NOOP. DAG size: 707 [2021-06-17 07:21:43,083 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:43,112 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:43,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:43,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:43,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:43,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:43,119 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 [2021-06-17 07:21:43,121 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:45,551 WARN L205 SmtUtils]: Spent 2.43 s on a formula simplification that was a NOOP. DAG size: 693 [2021-06-17 07:21:45,551 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:45,578 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:45,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:45,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:45,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:45,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:45,585 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 [2021-06-17 07:21:45,587 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:47,946 WARN L205 SmtUtils]: Spent 2.36 s on a formula simplification that was a NOOP. DAG size: 678 [2021-06-17 07:21:47,947 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:47,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:47,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:47,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:47,978 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:47,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:47,981 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 [2021-06-17 07:21:47,982 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:50,364 WARN L205 SmtUtils]: Spent 2.38 s on a formula simplification that was a NOOP. DAG size: 663 [2021-06-17 07:21:50,365 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:50,392 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:50,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:50,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:50,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:50,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:50,398 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 [2021-06-17 07:21:50,400 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:52,721 WARN L205 SmtUtils]: Spent 2.32 s on a formula simplification that was a NOOP. DAG size: 648 [2021-06-17 07:21:52,721 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:52,749 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:52,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:52,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:52,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:52,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:52,754 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 [2021-06-17 07:21:52,756 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:54,988 WARN L205 SmtUtils]: Spent 2.23 s on a formula simplification that was a NOOP. DAG size: 633 [2021-06-17 07:21:54,989 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:55,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:55,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:55,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:55,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:55,039 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 [2021-06-17 07:21:55,041 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:55,066 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:55,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:55,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:55,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:55,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:55,074 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 [2021-06-17 07:21:55,075 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:57,111 WARN L205 SmtUtils]: Spent 2.04 s on a formula simplification that was a NOOP. DAG size: 618 [2021-06-17 07:21:57,112 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:57,136 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:57,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:57,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:57,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:57,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:57,141 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:57,156 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 [2021-06-17 07:21:57,158 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:57,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:57,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:57,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:57,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:57,190 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 [2021-06-17 07:21:57,193 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:59,082 WARN L205 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 601 [2021-06-17 07:21:59,083 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:21:59,108 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:59,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:59,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:59,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:59,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:59,114 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:21:59,132 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 [2021-06-17 07:21:59,134 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-17 07:21:59,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:59,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:59,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:59,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:21:59,165 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 [2021-06-17 07:21:59,166 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:00,982 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 585 [2021-06-17 07:22:00,982 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:01,005 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:01,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:01,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:01,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:01,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:01,010 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 [2021-06-17 07:22:01,012 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:02,823 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification that was a NOOP. DAG size: 570 [2021-06-17 07:22:02,824 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:02,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:02,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:02,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:02,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:02,870 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 [2021-06-17 07:22:02,872 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:02,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:02,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:02,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:02,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:02,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:02,901 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 [2021-06-17 07:22:02,903 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:04,581 WARN L205 SmtUtils]: Spent 1.68 s on a formula simplification that was a NOOP. DAG size: 553 [2021-06-17 07:22:04,581 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:04,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:04,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:04,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:04,607 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:04,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:04,613 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:04,624 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 [2021-06-17 07:22:04,626 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:04,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:04,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:04,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:04,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:04,655 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 [2021-06-17 07:22:04,657 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:06,263 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification that was a NOOP. DAG size: 536 [2021-06-17 07:22:06,264 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:06,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:06,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:06,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:06,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:06,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:06,295 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:06,305 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 [2021-06-17 07:22:06,307 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:06,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:06,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:06,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:06,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:06,332 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 [2021-06-17 07:22:06,334 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:07,823 WARN L205 SmtUtils]: Spent 1.49 s on a formula simplification that was a NOOP. DAG size: 519 [2021-06-17 07:22:07,824 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:07,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:07,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:07,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:07,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:07,864 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 [2021-06-17 07:22:07,866 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:07,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:07,887 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:07,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:07,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:07,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:07,891 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 [2021-06-17 07:22:07,893 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:09,299 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification that was a NOOP. DAG size: 502 [2021-06-17 07:22:09,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:09,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:09,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:09,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:09,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:09,323 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:09,324 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 [2021-06-17 07:22:09,325 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:10,681 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 488 [2021-06-17 07:22:10,681 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:10,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:10,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:10,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:10,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:10,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:10,708 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 [2021-06-17 07:22:10,709 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:11,994 WARN L205 SmtUtils]: Spent 1.28 s on a formula simplification that was a NOOP. DAG size: 473 [2021-06-17 07:22:11,994 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:12,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:12,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:12,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:12,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:12,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 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 [2021-06-17 07:22:12,037 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:12,056 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:12,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:12,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:12,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:12,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:12,061 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 [2021-06-17 07:22:12,063 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:13,296 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification that was a NOOP. DAG size: 456 [2021-06-17 07:22:13,297 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:13,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,321 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:13,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:13,323 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 [2021-06-17 07:22:13,324 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:14,515 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 441 [2021-06-17 07:22:14,516 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:14,536 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:14,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:14,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:14,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:14,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:14,541 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 49 treesize of output 25 [2021-06-17 07:22:14,542 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:15,684 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 426 [2021-06-17 07:22:15,684 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:15,702 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:15,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:15,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:15,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:15,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:15,707 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:15,719 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 [2021-06-17 07:22:15,721 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:15,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:15,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:15,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:15,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:15,743 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 [2021-06-17 07:22:15,745 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:16,830 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 409 [2021-06-17 07:22:16,830 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:16,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:16,851 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:16,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:16,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:16,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:16,854 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 [2021-06-17 07:22:16,856 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:17,904 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 394 [2021-06-17 07:22:17,905 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:17,921 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:17,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:17,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:17,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:17,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:17,926 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 [2021-06-17 07:22:17,928 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:18,948 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification that was a NOOP. DAG size: 379 [2021-06-17 07:22:18,948 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:18,980 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:18,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:18,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:18,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:18,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:18,984 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 [2021-06-17 07:22:18,986 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:19,957 WARN L205 SmtUtils]: Spent 971.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2021-06-17 07:22:19,958 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:19,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:19,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:19,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:19,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:19,991 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 [2021-06-17 07:22:19,993 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:20,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:20,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:20,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:20,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:20,013 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:20,014 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 [2021-06-17 07:22:20,015 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:20,891 WARN L205 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 347 [2021-06-17 07:22:20,892 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:20,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:20,908 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:20,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:20,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:20,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:20,911 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 [2021-06-17 07:22:20,912 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:21,777 WARN L205 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 332 [2021-06-17 07:22:21,777 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:21,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,808 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 [2021-06-17 07:22:21,809 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:21,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,828 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:21,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:21,830 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 [2021-06-17 07:22:21,831 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:22,632 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2021-06-17 07:22:22,632 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:22,646 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:22,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,650 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:22,660 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 [2021-06-17 07:22:22,661 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:22,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:22,679 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 [2021-06-17 07:22:22,680 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:23,400 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2021-06-17 07:22:23,400 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:23,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:23,424 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 07:22:23,425 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 [2021-06-17 07:22:23,427 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:24,108 WARN L205 SmtUtils]: Spent 681.00 ms on a formula simplification that was a NOOP. DAG size: 282 [2021-06-17 07:22:24,109 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:24,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 07:22:24,130 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 [2021-06-17 07:22:24,132 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-06-17 07:22:24,773 WARN L205 SmtUtils]: Spent 639.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-06-17 07:22:24,773 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 07:22:24,797 INFO L550 ElimStorePlain]: Start of recursive call 1: 64 dim-0 vars, 32 dim-1 vars, End of recursive call: and 21 xjuncts. [2021-06-17 07:22:24,798 INFO L247 ElimStorePlain]: Needed 49 recursive calls to eliminate 96 variables, input treesize:4005, output treesize:226 [2021-06-17 07:22:25,009 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:22:25,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628926059] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:22:25,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:22:25,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-06-17 07:22:25,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555066739] [2021-06-17 07:22:25,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-17 07:22:25,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:22:25,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-17 07:22:25,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=896, Unknown=0, NotChecked=0, Total=992 [2021-06-17 07:22:25,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:22:25,013 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:22:25,013 INFO L483 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) [2021-06-17 07:22:25,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:22:25,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:22:25,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:22:25,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:22:25,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:22:25,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:25,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:22:25,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:25,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:22:25,800 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 46 [2021-06-17 07:22:26,267 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 64 [2021-06-17 07:22:26,498 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 66 [2021-06-17 07:22:26,787 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 67 [2021-06-17 07:22:27,086 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 85 [2021-06-17 07:22:27,912 WARN L205 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 554 DAG size of output: 127 [2021-06-17 07:22:30,231 WARN L205 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 238 DAG size of output: 123 [2021-06-17 07:22:33,942 WARN L205 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 540 DAG size of output: 162 [2021-06-17 07:22:34,310 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-06-17 07:22:34,877 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-06-17 07:22:35,197 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-06-17 07:22:35,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:22:35,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:22:35,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:22:35,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:22:35,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:22:35,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:35,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:22:35,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:35,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:22:35,465 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable278 [2021-06-17 07:22:35,466 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:22:35,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:22:35,466 INFO L82 PathProgramCache]: Analyzing trace with hash 1933198930, now seen corresponding path program 6 times [2021-06-17 07:22:35,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:22:35,466 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12254290] [2021-06-17 07:22:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:22:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:22:35,583 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:22:35,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 07:22:35,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12254290] [2021-06-17 07:22:35,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12254290] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:22:35,584 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1622062975] [2021-06-17 07:22:35,584 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 [2021-06-17 07:22:35,627 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-17 07:22:35,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 07:22:35,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-17 07:22:35,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 07:22:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 18 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 07:22:35,842 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1622062975] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 07:22:35,842 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 07:22:35,842 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 29 [2021-06-17 07:22:35,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576020513] [2021-06-17 07:22:35,842 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-17 07:22:35,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 07:22:35,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-17 07:22:35,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=652, Unknown=0, NotChecked=0, Total=812 [2021-06-17 07:22:35,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:22:35,843 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 07:22:35,843 INFO L483 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) [2021-06-17 07:22:35,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:22:35,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:22:35,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:22:35,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:22:35,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:22:35,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:35,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:22:35,843 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:35,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:22:35,844 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 07:22:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-17 07:22:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 07:22:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-17 07:22:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 07:22:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 07:22:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:22:36,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 07:22:36,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 07:22:36,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-17 07:22:36,234 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable434,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 07:22:36,234 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 07:22:36,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 07:22:36,235 INFO L82 PathProgramCache]: Analyzing trace with hash 976790896, now seen corresponding path program 7 times [2021-06-17 07:22:36,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 07:22:36,235 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801744575] [2021-06-17 07:22:36,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 07:22:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 07:22:38,827 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 47 [2021-06-17 07:22:39,716 WARN L205 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 122 [2021-06-17 07:22:39,939 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 44 [2021-06-17 07:22:46,598 WARN L205 SmtUtils]: Spent 6.66 s on a formula simplification. DAG size of input: 419 DAG size of output: 328 [2021-06-17 07:22:47,221 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 328 DAG size of output: 70 [2021-06-17 07:24:52,065 WARN L205 SmtUtils]: Spent 2.08 m on a formula simplification. DAG size of input: 701 DAG size of output: 581 [2021-06-17 07:24:52,189 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 581 DAG size of output: 581 [2021-06-17 07:24:54,055 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 581 DAG size of output: 126 [2021-06-17 07:29:00,111 WARN L205 SmtUtils]: Spent 4.10 m on a formula simplification. DAG size of input: 759 DAG size of output: 752 [2021-06-17 07:29:02,848 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 751 DAG size of output: 179 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown