/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 22:56:14,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 22:56:14,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 22:56:14,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 22:56:14,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-06 22:56:14,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-06 22:56:14,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-06 22:56:14,835 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-DelaySleep-NoLbe-Random521.epf [2021-06-06 22:56:14,861 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 22:56:14,861 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 22:56:14,861 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 22:56:14,861 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 22:56:14,863 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 22:56:14,863 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 22:56:14,863 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 22:56:14,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 22:56:14,863 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 22:56:14,863 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 22:56:14,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 22:56:14,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 22:56:14,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 22:56:14,864 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 22:56:14,864 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 22:56:14,864 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 22:56:14,865 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 22:56:14,865 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 22:56:14,865 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 22:56:14,865 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 22:56:14,865 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 22:56:14,865 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 22:56:14,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 22:56:14,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 22:56:14,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 22:56:14,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 22:56:14,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 22:56:14,865 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 22:56:14,866 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 22:56:14,866 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 22:56:14,866 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 22:56:14,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 22:56:14,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 22:56:14,866 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 22:56:14,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 22:56:14,866 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 22:56:15,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 22:56:15,121 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 22:56:15,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 22:56:15,123 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 22:56:15,124 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 22:56:15,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl [2021-06-06 22:56:15,125 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl' [2021-06-06 22:56:15,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 22:56:15,142 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 22:56:15,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 22:56:15,142 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 22:56:15,142 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 22:56:15,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:15" (1/1) ... [2021-06-06 22:56:15,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:15" (1/1) ... [2021-06-06 22:56:15,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 22:56:15,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 22:56:15,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 22:56:15,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 22:56:15,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:15" (1/1) ... [2021-06-06 22:56:15,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:15" (1/1) ... [2021-06-06 22:56:15,176 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:15" (1/1) ... [2021-06-06 22:56:15,177 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:15" (1/1) ... [2021-06-06 22:56:15,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:15" (1/1) ... [2021-06-06 22:56:15,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:15" (1/1) ... [2021-06-06 22:56:15,184 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:15" (1/1) ... [2021-06-06 22:56:15,187 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 22:56:15,188 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 22:56:15,188 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 22:56:15,188 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 22:56:15,189 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:15" (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 [2021-06-06 22:56:15,232 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 22:56:15,232 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 22:56:15,232 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 22:56:15,232 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 22:56:15,232 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 22:56:15,233 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 22:56:15,233 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 22:56:15,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 22:56:15,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 22:56:15,233 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 22:56:15,233 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 22:56:15,233 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 22:56:15,234 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 22:56:15,437 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 22:56:15,438 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 22:56:15,439 INFO L202 PluginConnector]: Adding new model max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 10:56:15 BoogieIcfgContainer [2021-06-06 22:56:15,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 22:56:15,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 22:56:15,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 22:56:15,442 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 22:56:15,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 10:56:15" (1/2) ... [2021-06-06 22:56:15,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@432ae338 and model type max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 10:56:15, skipping insertion in model container [2021-06-06 22:56:15,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 10:56:15" (2/2) ... [2021-06-06 22:56:15,444 INFO L111 eAbstractionObserver]: Analyzing ICFG max-array.wvr.bpl [2021-06-06 22:56:15,447 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 22:56:15,447 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 22:56:15,447 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 22:56:15,448 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 22:56:15,474 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 22:56:15,488 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 [2021-06-06 22:56:15,542 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 22:56:15,542 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 22:56:15,542 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 22:56:15,543 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 22:56:15,543 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 22:56:15,543 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 22:56:15,543 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 22:56:15,543 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 22:56:15,625 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:15,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:15,628 INFO L82 PathProgramCache]: Analyzing trace with hash -1529172741, now seen corresponding path program 1 times [2021-06-06 22:56:15,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:15,634 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557028838] [2021-06-06 22:56:15,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:15,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:15,776 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:15,776 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557028838] [2021-06-06 22:56:15,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557028838] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 22:56:15,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 22:56:15,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 22:56:15,777 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675781974] [2021-06-06 22:56:15,780 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-06 22:56:15,780 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:15,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-06 22:56:15,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-06 22:56:15,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:15,789 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:15,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) 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) [2021-06-06 22:56:15,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:15,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:15,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 22:56:15,829 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:15,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:15,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1702466087, now seen corresponding path program 1 times [2021-06-06 22:56:15,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:15,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593445884] [2021-06-06 22:56:15,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:15,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:56:15,864 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:15,864 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593445884] [2021-06-06 22:56:15,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593445884] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 22:56:15,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 22:56:15,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 22:56:15,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876323246] [2021-06-06 22:56:15,866 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 22:56:15,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:15,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 22:56:15,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 22:56:15,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:15,870 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:15,870 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 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) [2021-06-06 22:56:15,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:15,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:15,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:15,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:15,922 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 22:56:15,922 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:15,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:15,923 INFO L82 PathProgramCache]: Analyzing trace with hash -458906501, now seen corresponding path program 1 times [2021-06-06 22:56:15,923 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:15,923 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467103470] [2021-06-06 22:56:15,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:15,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:16,004 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:56:16,004 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:16,004 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467103470] [2021-06-06 22:56:16,005 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467103470] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:16,005 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867228305] [2021-06-06 22:56:16,005 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 [2021-06-06 22:56:16,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:16,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-06 22:56:16,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:56:16,151 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:56:16,151 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867228305] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:16,152 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:56:16,152 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-06 22:56:16,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125604838] [2021-06-06 22:56:16,152 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-06 22:56:16,152 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:16,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-06 22:56:16,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-06 22:56:16,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:16,153 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:16,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 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) [2021-06-06 22:56:16,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:16,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:16,154 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:16,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:16,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:16,422 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:56:16,423 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:16,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:16,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1431714215, now seen corresponding path program 2 times [2021-06-06 22:56:16,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:16,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573837880] [2021-06-06 22:56:16,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:16,869 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:16,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573837880] [2021-06-06 22:56:16,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573837880] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:16,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292248254] [2021-06-06 22:56:16,869 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 [2021-06-06 22:56:16,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 22:56:16,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:56:16,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-06 22:56:16,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:56:17,435 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:17,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 26 [2021-06-06 22:56:17,453 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,476 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-06-06 22:56:17,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 28 [2021-06-06 22:56:17,481 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,509 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-06-06 22:56:17,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 28 [2021-06-06 22:56:17,511 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,533 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-06-06 22:56:17,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 21 [2021-06-06 22:56:17,536 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,557 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-06-06 22:56:17,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 25 [2021-06-06 22:56:17,566 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,578 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:17,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 19 [2021-06-06 22:56:17,580 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,591 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:17,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 19 [2021-06-06 22:56:17,593 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,609 INFO L354 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2021-06-06 22:56:17,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 19 [2021-06-06 22:56:17,611 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,629 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:17,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 19 [2021-06-06 22:56:17,631 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,642 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:17,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 16 [2021-06-06 22:56:17,644 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,657 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:17,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 1 [2021-06-06 22:56:17,658 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,688 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:17,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 16 [2021-06-06 22:56:17,689 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,700 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:17,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 16 [2021-06-06 22:56:17,701 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,713 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:17,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 16 [2021-06-06 22:56:17,715 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,724 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:17,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 19 [2021-06-06 22:56:17,725 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,732 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-06-06 22:56:17,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 1 [2021-06-06 22:56:17,733 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:17,859 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2021-06-06 22:56:17,859 INFO L628 ElimStorePlain]: treesize reduction 4, result has 97.4 percent of original size [2021-06-06 22:56:17,865 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-06-06 22:56:17,865 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 2 variables, input treesize:697, output treesize:177 [2021-06-06 22:56:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:18,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292248254] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:18,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:56:18,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-06-06 22:56:18,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794661367] [2021-06-06 22:56:18,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-06 22:56:18,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:18,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-06 22:56:18,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2021-06-06 22:56:18,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:18,079 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:18,080 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 2.5) internal successors, (50), 20 states have internal predecessors, (50), 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) [2021-06-06 22:56:18,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:18,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:18,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:18,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:18,484 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2021-06-06 22:56:18,819 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-06-06 22:56:18,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:18,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:18,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:18,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:56:19,151 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:56:19,152 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:19,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:19,152 INFO L82 PathProgramCache]: Analyzing trace with hash 24177557, now seen corresponding path program 3 times [2021-06-06 22:56:19,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:19,152 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610851752] [2021-06-06 22:56:19,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:19,218 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:19,218 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:19,218 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610851752] [2021-06-06 22:56:19,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610851752] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:19,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578720852] [2021-06-06 22:56:19,219 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 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 [2021-06-06 22:56:19,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-06 22:56:19,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:56:19,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-06 22:56:19,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:56:19,393 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:19,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578720852] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:19,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:56:19,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-06-06 22:56:19,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058336568] [2021-06-06 22:56:19,394 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-06 22:56:19,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:19,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-06 22:56:19,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-06-06 22:56:19,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:19,395 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:19,395 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 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) [2021-06-06 22:56:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:56:19,395 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:19,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:19,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:56:19,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:56:19,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:56:19,889 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:19,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:19,889 INFO L82 PathProgramCache]: Analyzing trace with hash -97824901, now seen corresponding path program 4 times [2021-06-06 22:56:19,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:19,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250946507] [2021-06-06 22:56:19,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:56:19,968 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:19,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250946507] [2021-06-06 22:56:19,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250946507] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:19,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1248239272] [2021-06-06 22:56:19,969 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 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 [2021-06-06 22:56:19,998 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 22:56:19,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:56:19,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 22:56:19,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:56:20,101 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:56:20,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1248239272] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:20,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:56:20,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-06 22:56:20,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073478944] [2021-06-06 22:56:20,102 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 22:56:20,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:56:20,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 22:56:20,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-06 22:56:20,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:20,102 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:56:20,103 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 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) [2021-06-06 22:56:20,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:20,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:20,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:20,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:56:20,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:56:20,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:56:20,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:56:20,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:56:20,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:56:20,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:56:20,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:56:20,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:56:20,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable58 [2021-06-06 22:56:20,405 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:56:20,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:56:20,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1817865127, now seen corresponding path program 5 times [2021-06-06 22:56:20,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:56:20,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528199170] [2021-06-06 22:56:20,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:56:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:56:20,955 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2021-06-06 22:56:21,100 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-06-06 22:56:21,395 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 100 [2021-06-06 22:56:21,775 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 116 [2021-06-06 22:56:22,132 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 111 [2021-06-06 22:56:22,338 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2021-06-06 22:56:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:56:22,771 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:56:22,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528199170] [2021-06-06 22:56:22,771 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528199170] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:56:22,771 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807343775] [2021-06-06 22:56:22,771 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 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 [2021-06-06 22:56:22,812 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-06 22:56:22,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:56:22,814 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-06 22:56:22,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:56:24,606 WARN L205 SmtUtils]: Spent 990.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-06-06 22:56:27,046 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 353 [2021-06-06 22:56:28,891 WARN L205 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 361 [2021-06-06 22:56:30,512 WARN L205 SmtUtils]: Spent 953.00 ms on a formula simplification that was a NOOP. DAG size: 362 [2021-06-06 22:56:32,131 WARN L205 SmtUtils]: Spent 985.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2021-06-06 22:56:33,537 WARN L205 SmtUtils]: Spent 962.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2021-06-06 22:56:34,744 WARN L205 SmtUtils]: Spent 731.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2021-06-06 22:56:35,943 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2021-06-06 22:56:36,606 INFO L446 ElimStorePlain]: Different costs {9=[v_prenex_180, v_prenex_160, v_prenex_182, v_prenex_140, v_prenex_184, v_prenex_162, v_prenex_142, v_prenex_186, v_prenex_164, v_prenex_144, v_prenex_166, v_prenex_168, v_prenex_146, v_prenex_125, v_prenex_148, v_prenex_127, v_prenex_170, v_prenex_150, v_prenex_174, v_prenex_152, v_prenex_131, v_prenex_154, v_prenex_176, v_prenex_133, v_prenex_156, v_prenex_178, v_prenex_135, v_prenex_158, v_prenex_137, v_prenex_129, A], 15=[v_prenex_172]} [2021-06-06 22:56:36,647 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:36,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:36,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:36,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:36,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:36,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:36,674 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 51 treesize of output 25 [2021-06-06 22:56:36,675 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:36,710 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:36,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:36,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:36,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:36,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:36,717 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 51 treesize of output 22 [2021-06-06 22:56:36,720 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:41,451 WARN L205 SmtUtils]: Spent 4.73 s on a formula simplification. DAG size of input: 795 DAG size of output: 655 [2021-06-06 22:56:41,452 INFO L628 ElimStorePlain]: treesize reduction 2077, result has 44.6 percent of original size [2021-06-06 22:56:41,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:41,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:41,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:41,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:41,484 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 [2021-06-06 22:56:41,486 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:42,591 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 643 [2021-06-06 22:56:42,591 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:42,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:42,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:42,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:42,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:42,621 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 [2021-06-06 22:56:42,627 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:43,686 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 631 [2021-06-06 22:56:43,687 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:43,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:43,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:43,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:43,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:43,728 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:43,730 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 40 treesize of output 22 [2021-06-06 22:56:43,731 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:44,728 WARN L205 SmtUtils]: Spent 996.00 ms on a formula simplification that was a NOOP. DAG size: 618 [2021-06-06 22:56:44,729 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:44,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:44,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:44,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:44,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:44,757 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 44 treesize of output 22 [2021-06-06 22:56:44,758 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:45,748 WARN L205 SmtUtils]: Spent 988.00 ms on a formula simplification that was a NOOP. DAG size: 605 [2021-06-06 22:56:45,748 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:45,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:45,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:45,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:45,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:45,785 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 [2021-06-06 22:56:45,787 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:46,751 WARN L205 SmtUtils]: Spent 963.00 ms on a formula simplification that was a NOOP. DAG size: 593 [2021-06-06 22:56:46,752 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:46,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:46,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:46,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:46,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:46,783 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 [2021-06-06 22:56:46,785 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:47,717 WARN L205 SmtUtils]: Spent 931.00 ms on a formula simplification that was a NOOP. DAG size: 580 [2021-06-06 22:56:47,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:47,740 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:47,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:47,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:47,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:47,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:47,745 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 44 treesize of output 22 [2021-06-06 22:56:47,747 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:48,662 WARN L205 SmtUtils]: Spent 914.00 ms on a formula simplification that was a NOOP. DAG size: 567 [2021-06-06 22:56:48,663 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:48,685 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:48,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:48,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:48,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:48,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:48,691 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 44 treesize of output 22 [2021-06-06 22:56:48,693 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:49,569 WARN L205 SmtUtils]: Spent 876.00 ms on a formula simplification that was a NOOP. DAG size: 553 [2021-06-06 22:56:49,570 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:49,593 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:49,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:49,598 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 [2021-06-06 22:56:49,600 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:50,423 WARN L205 SmtUtils]: Spent 822.00 ms on a formula simplification that was a NOOP. DAG size: 539 [2021-06-06 22:56:50,423 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:50,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:50,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:50,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:50,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:50,450 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 44 treesize of output 22 [2021-06-06 22:56:50,452 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:51,239 WARN L205 SmtUtils]: Spent 786.00 ms on a formula simplification that was a NOOP. DAG size: 526 [2021-06-06 22:56:51,239 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:51,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:51,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:51,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:51,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:51,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:51,264 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 44 treesize of output 22 [2021-06-06 22:56:51,267 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:52,030 WARN L205 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 512 [2021-06-06 22:56:52,033 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:52,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:52,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:52,086 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:52,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:52,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:52,091 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 44 treesize of output 22 [2021-06-06 22:56:52,095 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:52,825 WARN L205 SmtUtils]: Spent 729.00 ms on a formula simplification that was a NOOP. DAG size: 499 [2021-06-06 22:56:52,826 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:52,852 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:52,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:52,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:52,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:52,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:52,857 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 [2021-06-06 22:56:52,859 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:53,547 WARN L205 SmtUtils]: Spent 687.00 ms on a formula simplification that was a NOOP. DAG size: 486 [2021-06-06 22:56:53,547 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:53,566 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:53,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:53,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:53,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:53,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:53,571 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 40 treesize of output 22 [2021-06-06 22:56:53,573 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:54,263 WARN L205 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 472 [2021-06-06 22:56:54,264 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:54,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,285 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:54,288 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 44 treesize of output 22 [2021-06-06 22:56:54,289 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:54,924 WARN L205 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 458 [2021-06-06 22:56:54,924 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:54,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:54,948 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 44 treesize of output 22 [2021-06-06 22:56:54,949 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:55,557 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 446 [2021-06-06 22:56:55,558 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:55,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:55,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:55,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:55,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:55,580 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 44 treesize of output 22 [2021-06-06 22:56:55,582 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:56,165 WARN L205 SmtUtils]: Spent 583.00 ms on a formula simplification that was a NOOP. DAG size: 433 [2021-06-06 22:56:56,166 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:56,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:56,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,186 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 44 treesize of output 22 [2021-06-06 22:56:56,188 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:56,746 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification that was a NOOP. DAG size: 419 [2021-06-06 22:56:56,746 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:56,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:56,768 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 44 treesize of output 22 [2021-06-06 22:56:56,769 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:57,301 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 406 [2021-06-06 22:56:57,301 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:57,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,330 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 [2021-06-06 22:56:57,332 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:57,836 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification that was a NOOP. DAG size: 393 [2021-06-06 22:56:57,837 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:57,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:57,857 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 44 treesize of output 22 [2021-06-06 22:56:57,858 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:58,331 WARN L205 SmtUtils]: Spent 472.00 ms on a formula simplification that was a NOOP. DAG size: 380 [2021-06-06 22:56:58,331 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:58,350 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:58,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,355 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 [2021-06-06 22:56:58,357 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:58,826 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2021-06-06 22:56:58,827 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:58,841 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:56:58,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:58,849 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 36 treesize of output 22 [2021-06-06 22:56:58,854 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:59,292 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2021-06-06 22:56:59,293 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:59,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,314 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 44 treesize of output 22 [2021-06-06 22:56:59,329 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-06-06 22:56:59,744 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2021-06-06 22:56:59,745 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:56:59,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:56:59,762 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 [2021-06-06 22:56:59,764 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:00,159 WARN L205 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2021-06-06 22:57:00,160 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:00,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,177 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 44 treesize of output 22 [2021-06-06 22:57:00,179 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:00,555 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2021-06-06 22:57:00,555 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:00,569 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:00,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,573 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 44 treesize of output 22 [2021-06-06 22:57:00,574 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:00,928 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 299 [2021-06-06 22:57:00,928 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:00,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:00,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 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 [2021-06-06 22:57:00,947 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:01,280 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 286 [2021-06-06 22:57:01,281 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:01,293 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:01,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,297 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 38 treesize of output 22 [2021-06-06 22:57:01,300 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:01,615 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2021-06-06 22:57:01,615 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:01,628 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 22:57:01,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,633 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 [2021-06-06 22:57:01,646 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:01,949 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 258 [2021-06-06 22:57:01,950 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:01,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 22:57:01,970 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 [2021-06-06 22:57:01,973 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts. [2021-06-06 22:57:02,254 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2021-06-06 22:57:02,254 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 22:57:02,273 INFO L550 ElimStorePlain]: Start of recursive call 1: 64 dim-0 vars, 32 dim-1 vars, End of recursive call: and 10 xjuncts. [2021-06-06 22:57:02,273 INFO L247 ElimStorePlain]: Needed 34 recursive calls to eliminate 96 variables, input treesize:3853, output treesize:71 [2021-06-06 22:57:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:57:02,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807343775] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:57:02,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:57:02,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 32 [2021-06-06 22:57:02,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845604222] [2021-06-06 22:57:02,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-06 22:57:02,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:57:02,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-06 22:57:02,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=898, Unknown=0, NotChecked=0, Total=992 [2021-06-06 22:57:02,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:02,417 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:57:02,417 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) [2021-06-06 22:57:02,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:02,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:02,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:02,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:02,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:02,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:02,418 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:02,889 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 33 [2021-06-06 22:57:03,341 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 51 [2021-06-06 22:57:03,862 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 61 [2021-06-06 22:57:04,071 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2021-06-06 22:57:04,429 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 72 [2021-06-06 22:57:04,726 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 83 [2021-06-06 22:57:05,765 WARN L205 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 561 DAG size of output: 126 [2021-06-06 22:57:07,518 WARN L205 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 220 DAG size of output: 121 [2021-06-06 22:57:10,433 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 528 DAG size of output: 160 [2021-06-06 22:57:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:10,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:10,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 22:57:11,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-06-06 22:57:11,147 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:57:11,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:57:11,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1214113353, now seen corresponding path program 6 times [2021-06-06 22:57:11,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:57:11,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507989841] [2021-06-06 22:57:11,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:57:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:57:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:57:11,243 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:57:11,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507989841] [2021-06-06 22:57:11,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507989841] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:57:11,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406823007] [2021-06-06 22:57:11,243 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 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 [2021-06-06 22:57:11,278 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-06 22:57:11,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 22:57:11,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-06 22:57:11,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:57:11,534 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 22:57:11,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406823007] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:57:11,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:57:11,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2021-06-06 22:57:11,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495210893] [2021-06-06 22:57:11,535 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-06 22:57:11,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:57:11,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-06 22:57:11,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=656, Unknown=0, NotChecked=0, Total=812 [2021-06-06 22:57:11,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:11,535 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:57:11,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.4482758620689653) internal successors, (71), 29 states have internal predecessors, (71), 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) [2021-06-06 22:57:11,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:11,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:11,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:11,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:11,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:11,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:11,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 22:57:11,536 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:12,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:12,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 22:57:12,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 22:57:12,640 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 22:57:12,641 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:57:12,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:57:12,641 INFO L82 PathProgramCache]: Analyzing trace with hash -42228101, now seen corresponding path program 7 times [2021-06-06 22:57:12,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:57:12,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678520570] [2021-06-06 22:57:12,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:57:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:57:12,748 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 31 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:57:12,748 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 22:57:12,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678520570] [2021-06-06 22:57:12,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678520570] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:57:12,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592347475] [2021-06-06 22:57:12,748 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-06-06 22:57:12,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:57:12,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-06 22:57:12,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 22:57:12,916 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 31 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 22:57:12,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [592347475] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 22:57:12,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 22:57:12,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 23 [2021-06-06 22:57:12,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460941461] [2021-06-06 22:57:12,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-06 22:57:12,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 22:57:12,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-06 22:57:12,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2021-06-06 22:57:12,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:12,921 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 22:57:12,921 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 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) [2021-06-06 22:57:12,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:12,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:12,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:12,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:12,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:12,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:12,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 22:57:12,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 22:57:12,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 22:57:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 22:57:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 22:57:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 22:57:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 22:57:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 22:57:13,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 22:57:13,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 22:57:13,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 22:57:13,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 22:57:13,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable216 [2021-06-06 22:57:13,308 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 22:57:13,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 22:57:13,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1036660057, now seen corresponding path program 8 times [2021-06-06 22:57:13,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 22:57:13,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46474047] [2021-06-06 22:57:13,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 22:57:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 22:57:14,581 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 126 [2021-06-06 22:57:14,841 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 68 [2021-06-06 22:57:15,580 WARN L205 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 186 [2021-06-06 22:57:15,990 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 85 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown