/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-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 17:44:21,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 17:44:21,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 17:44:21,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 17:44:21,677 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-Random42.epf [2021-06-06 17:44:21,710 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 17:44:21,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 17:44:21,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 17:44:21,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 17:44:21,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 17:44:21,713 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 17:44:21,713 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 17:44:21,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 17:44:21,713 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 17:44:21,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 17:44:21,714 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 17:44:21,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 17:44:21,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 17:44:21,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 17:44:21,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 17:44:21,715 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 17:44:21,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 17:44:21,715 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 17:44:21,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 17:44:21,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 17:44:21,715 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 17:44:21,715 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 17:44:21,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 17:44:21,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 17:44:21,716 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 17:44:21,716 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 17:44:21,716 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 17:44:21,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 17:44:21,716 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 17:44:21,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 17:44:21,716 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 17:44:21,716 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 17:44:21,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 17:44:21,717 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 17:44:21,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 17:44:21,717 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 17:44:21,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 17:44:21,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 17:44:22,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 17:44:22,001 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 17:44:22,002 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 17:44:22,002 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2021-06-06 17:44:22,003 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2021-06-06 17:44:22,025 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 17:44:22,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 17:44:22,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 17:44:22,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 17:44:22,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 17:44:22,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:22" (1/1) ... [2021-06-06 17:44:22,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:22" (1/1) ... [2021-06-06 17:44:22,048 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 17:44:22,050 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 17:44:22,050 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 17:44:22,050 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 17:44:22,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:22" (1/1) ... [2021-06-06 17:44:22,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:22" (1/1) ... [2021-06-06 17:44:22,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:22" (1/1) ... [2021-06-06 17:44:22,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:22" (1/1) ... [2021-06-06 17:44:22,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:22" (1/1) ... [2021-06-06 17:44:22,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:22" (1/1) ... [2021-06-06 17:44:22,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:22" (1/1) ... [2021-06-06 17:44:22,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 17:44:22,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 17:44:22,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 17:44:22,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 17:44:22,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:22" (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 17:44:22,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 17:44:22,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 17:44:22,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 17:44:22,139 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 17:44:22,140 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 17:44:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 17:44:22,140 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 17:44:22,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 17:44:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 17:44:22,141 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 17:44:22,141 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 17:44:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 17:44:22,142 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 17:44:22,334 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 17:44:22,334 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 17:44:22,336 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:44:22 BoogieIcfgContainer [2021-06-06 17:44:22,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 17:44:22,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 17:44:22,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 17:44:22,340 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 17:44:22,340 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 05:44:22" (1/2) ... [2021-06-06 17:44:22,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e142e7 and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 05:44:22, skipping insertion in model container [2021-06-06 17:44:22,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 05:44:22" (2/2) ... [2021-06-06 17:44:22,342 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2021-06-06 17:44:22,347 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 17:44:22,347 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 17:44:22,347 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 17:44:22,348 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 17:44:22,376 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 17:44:22,398 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 17:44:22,491 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 17:44:22,491 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 17:44:22,491 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 17:44:22,496 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 17:44:22,496 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 17:44:22,497 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 17:44:22,497 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 17:44:22,497 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 17:44:22,542 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:22,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:22,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1625853677, now seen corresponding path program 1 times [2021-06-06 17:44:22,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:22,557 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983039742] [2021-06-06 17:44:22,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:22,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:22,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:22,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:22,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983039742] [2021-06-06 17:44:22,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983039742] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 17:44:22,716 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 17:44:22,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-06 17:44:22,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540503149] [2021-06-06 17:44:22,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-06 17:44:22,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:22,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-06 17:44:22,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-06 17:44:22,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:22,740 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:22,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:44:22,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:22,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:22,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 17:44:22,778 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:22,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:22,778 INFO L82 PathProgramCache]: Analyzing trace with hash -485591733, now seen corresponding path program 1 times [2021-06-06 17:44:22,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:22,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466429930] [2021-06-06 17:44:22,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:22,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 17:44:22,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:22,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466429930] [2021-06-06 17:44:22,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466429930] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 17:44:22,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 17:44:22,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-06 17:44:22,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953042416] [2021-06-06 17:44:22,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-06 17:44:22,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:22,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-06 17:44:22,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-06-06 17:44:22,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:22,888 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:22,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 5 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 17:44:22,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:22,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:22,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:22,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:22,976 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 17:44:22,976 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:22,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:22,977 INFO L82 PathProgramCache]: Analyzing trace with hash 308350371, now seen corresponding path program 1 times [2021-06-06 17:44:22,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:22,977 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227210842] [2021-06-06 17:44:22,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:23,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 17:44:23,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:23,026 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227210842] [2021-06-06 17:44:23,026 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227210842] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 17:44:23,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 17:44:23,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 17:44:23,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48247532] [2021-06-06 17:44:23,027 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 17:44:23,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:23,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 17:44:23,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 17:44:23,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:23,031 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:23,031 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:44:23,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:23,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:23,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:23,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:23,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:23,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:23,094 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-06 17:44:23,094 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:23,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:23,095 INFO L82 PathProgramCache]: Analyzing trace with hash 1940962605, now seen corresponding path program 1 times [2021-06-06 17:44:23,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:23,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463113300] [2021-06-06 17:44:23,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:23,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:23,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:23,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463113300] [2021-06-06 17:44:23,392 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463113300] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:23,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490531817] [2021-06-06 17:44:23,393 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 17:44:23,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:23,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-06 17:44:23,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:23,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-06 17:44:23,682 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:44:23,687 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:44:23,690 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:44:23,690 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:3 [2021-06-06 17:44:23,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:23,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490531817] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:23,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:23,717 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-06 17:44:23,717 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115988610] [2021-06-06 17:44:23,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-06 17:44:23,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:23,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-06 17:44:23,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-06-06 17:44:23,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:23,719 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:23,719 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 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 17:44:23,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:23,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:23,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:23,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:23,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:24,071 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:24,072 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:24,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:24,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1688853899, now seen corresponding path program 2 times [2021-06-06 17:44:24,072 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:24,072 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775623144] [2021-06-06 17:44:24,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:24,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:24,123 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:24,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775623144] [2021-06-06 17:44:24,123 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775623144] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:24,123 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [14030375] [2021-06-06 17:44:24,123 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 17:44:24,155 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 17:44:24,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:44:24,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-06 17:44:24,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:24,239 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:24,240 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [14030375] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:24,240 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:24,240 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-06-06 17:44:24,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10185769] [2021-06-06 17:44:24,240 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-06 17:44:24,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:24,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-06 17:44:24,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-06 17:44:24,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:24,242 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:24,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 10 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:44:24,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:24,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:24,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:24,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:24,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:24,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:24,585 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:24,585 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:24,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:24,586 INFO L82 PathProgramCache]: Analyzing trace with hash -71920535, now seen corresponding path program 3 times [2021-06-06 17:44:24,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:24,586 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129396857] [2021-06-06 17:44:24,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:24,942 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:24,943 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:24,943 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129396857] [2021-06-06 17:44:24,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129396857] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:24,944 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2032577214] [2021-06-06 17:44:24,944 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 17:44:24,974 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-06 17:44:24,975 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:44:24,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-06 17:44:24,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:25,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:25,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2021-06-06 17:44:25,189 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:44:25,194 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:44:25,196 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:44:25,196 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:3 [2021-06-06 17:44:25,228 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:25,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2032577214] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:25,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:25,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 16 [2021-06-06 17:44:25,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702400768] [2021-06-06 17:44:25,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 17:44:25,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:25,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 17:44:25,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-06-06 17:44:25,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:25,232 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:25,232 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:44:25,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:25,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:25,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:25,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:25,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:25,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:25,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:25,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:25,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:25,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:25,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:25,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:25,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:25,797 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:25,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:25,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1450653605, now seen corresponding path program 4 times [2021-06-06 17:44:25,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:25,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680805103] [2021-06-06 17:44:25,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:25,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:25,871 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:25,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:25,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680805103] [2021-06-06 17:44:25,874 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680805103] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:25,874 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074218469] [2021-06-06 17:44:25,874 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 17:44:25,913 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 17:44:25,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:44:25,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-06 17:44:25,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:26,009 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:26,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074218469] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:26,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:26,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-06-06 17:44:26,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681673882] [2021-06-06 17:44:26,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-06 17:44:26,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:26,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-06 17:44:26,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-06 17:44:26,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:26,012 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:26,012 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 13 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:44:26,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:26,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:26,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:26,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:26,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:26,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:26,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-06-06 17:44:26,450 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:26,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:26,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1349136381, now seen corresponding path program 5 times [2021-06-06 17:44:26,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:26,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759673004] [2021-06-06 17:44:26,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:26,544 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:26,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759673004] [2021-06-06 17:44:26,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759673004] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:26,544 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013840242] [2021-06-06 17:44:26,544 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 17:44:26,591 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-06 17:44:26,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:44:26,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 17:44:26,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:26,698 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:26,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013840242] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:26,699 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:26,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2021-06-06 17:44:26,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454196333] [2021-06-06 17:44:26,699 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-06 17:44:26,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:26,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-06 17:44:26,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-06-06 17:44:26,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:26,700 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:26,700 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.642857142857143) internal successors, (37), 14 states have internal predecessors, (37), 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 17:44:26,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:26,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:26,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:26,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:26,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:26,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:26,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:26,701 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:26,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:26,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:27,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:27,181 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:27,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:27,181 INFO L82 PathProgramCache]: Analyzing trace with hash 997181665, now seen corresponding path program 6 times [2021-06-06 17:44:27,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:27,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25779479] [2021-06-06 17:44:27,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:27,711 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:27,712 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:27,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25779479] [2021-06-06 17:44:27,712 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25779479] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:27,712 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729280430] [2021-06-06 17:44:27,712 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 17:44:27,748 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-06 17:44:27,748 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:44:27,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 41 conjunts are in the unsatisfiable core [2021-06-06 17:44:27,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:28,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:28,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:28,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:28,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:28,188 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 17:44:28,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:28,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:28,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 17:44:28,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:28,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:28,193 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 17:44:28,193 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 17:44:28,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 15 [2021-06-06 17:44:28,196 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:44:28,200 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:44:28,202 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:44:28,202 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:3 [2021-06-06 17:44:28,229 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:28,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729280430] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:28,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:28,230 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 26 [2021-06-06 17:44:28,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052358522] [2021-06-06 17:44:28,230 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-06 17:44:28,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:28,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-06 17:44:28,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2021-06-06 17:44:28,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:28,231 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:28,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 2.2222222222222223) internal successors, (60), 26 states have internal predecessors, (60), 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 17:44:28,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:28,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:28,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:28,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:28,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:28,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:28,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:28,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:28,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:29,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:29,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:29,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:29,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:29,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:29,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:29,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:29,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:29,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:29,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:29,829 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:29,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:29,829 INFO L82 PathProgramCache]: Analyzing trace with hash -306108899, now seen corresponding path program 7 times [2021-06-06 17:44:29,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:29,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756171812] [2021-06-06 17:44:29,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:29,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:30,396 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:30,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756171812] [2021-06-06 17:44:30,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756171812] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:30,396 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684877268] [2021-06-06 17:44:30,396 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 17:44:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:30,427 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-06 17:44:30,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:30,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:30,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:30,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:30,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:30,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:30,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:30,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:30,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:30,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:30,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:30,853 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 53 treesize of output 17 [2021-06-06 17:44:30,854 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:44:30,858 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:44:30,859 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:44:30,859 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:59, output treesize:3 [2021-06-06 17:44:30,884 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:30,885 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684877268] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:30,885 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:30,885 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 28 [2021-06-06 17:44:30,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373872904] [2021-06-06 17:44:30,886 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-06 17:44:30,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:30,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-06 17:44:30,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2021-06-06 17:44:30,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:30,887 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:30,887 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.2413793103448274) internal successors, (65), 28 states have internal predecessors, (65), 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 17:44:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:30,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:32,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:32,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:32,316 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-06 17:44:32,317 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:32,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:32,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1906247001, now seen corresponding path program 8 times [2021-06-06 17:44:32,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:32,317 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256032125] [2021-06-06 17:44:32,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:32,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:33,042 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:33,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:33,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256032125] [2021-06-06 17:44:33,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256032125] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:33,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216253816] [2021-06-06 17:44:33,042 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:33,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 17:44:33,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:44:33,081 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 62 conjunts are in the unsatisfiable core [2021-06-06 17:44:33,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:33,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:33,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 19 [2021-06-06 17:44:33,700 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:44:33,709 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:44:33,711 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:44:33,711 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:82, output treesize:18 [2021-06-06 17:44:33,787 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:33,787 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216253816] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:33,787 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:33,787 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 35 [2021-06-06 17:44:33,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66229384] [2021-06-06 17:44:33,788 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-06 17:44:33,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:33,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-06 17:44:33,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1084, Unknown=0, NotChecked=0, Total=1260 [2021-06-06 17:44:33,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:33,789 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:33,789 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.0277777777777777) internal successors, (73), 35 states have internal predecessors, (73), 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 17:44:33,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:33,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:33,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:33,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:33,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:33,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:33,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:33,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:33,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:33,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:33,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:35,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:44:35,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:35,497 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:35,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:35,498 INFO L82 PathProgramCache]: Analyzing trace with hash 295200405, now seen corresponding path program 9 times [2021-06-06 17:44:35,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:35,498 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602400213] [2021-06-06 17:44:35,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:36,293 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 20 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:36,293 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:36,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602400213] [2021-06-06 17:44:36,293 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602400213] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:36,293 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070746416] [2021-06-06 17:44:36,294 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:36,333 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-06 17:44:36,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:44:36,335 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 71 conjunts are in the unsatisfiable core [2021-06-06 17:44:36,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:37,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:37,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 21 [2021-06-06 17:44:37,080 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:44:37,088 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:44:37,089 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:44:37,090 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:92, output treesize:18 [2021-06-06 17:44:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:37,153 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070746416] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:37,153 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:37,153 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 38 [2021-06-06 17:44:37,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089106472] [2021-06-06 17:44:37,153 INFO L462 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-06-06 17:44:37,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:37,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-06-06 17:44:37,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1271, Unknown=0, NotChecked=0, Total=1482 [2021-06-06 17:44:37,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:37,155 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:37,155 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 2.051282051282051) internal successors, (80), 38 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 17:44:37,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:37,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:37,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:37,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:37,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:37,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:37,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:37,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:37,155 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:37,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:37,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:44:37,156 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:44:38,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:44:38,814 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:38,814 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:38,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:38,814 INFO L82 PathProgramCache]: Analyzing trace with hash -1866708527, now seen corresponding path program 10 times [2021-06-06 17:44:38,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:38,815 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674040035] [2021-06-06 17:44:38,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 25 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:39,720 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:39,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674040035] [2021-06-06 17:44:39,720 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674040035] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:39,720 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360257554] [2021-06-06 17:44:39,721 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:39,755 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 17:44:39,756 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:44:39,757 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 72 conjunts are in the unsatisfiable core [2021-06-06 17:44:39,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:40,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:40,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 23 [2021-06-06 17:44:40,484 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:44:40,488 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:44:40,489 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:44:40,489 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:89, output treesize:3 [2021-06-06 17:44:40,541 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:40,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360257554] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:40,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:40,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 40 [2021-06-06 17:44:40,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253400570] [2021-06-06 17:44:40,542 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-06 17:44:40,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:40,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-06 17:44:40,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1464, Unknown=0, NotChecked=0, Total=1640 [2021-06-06 17:44:40,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:40,543 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:40,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 2.1707317073170733) internal successors, (89), 40 states have internal predecessors, (89), 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 17:44:40,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:40,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:40,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:40,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:40,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:40,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:40,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:40,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:40,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:40,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:40,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:44:40,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:44:40,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:44:42,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:44:42,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:44:42,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-06 17:44:42,765 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:42,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:42,765 INFO L82 PathProgramCache]: Analyzing trace with hash -359026931, now seen corresponding path program 11 times [2021-06-06 17:44:42,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:42,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469037266] [2021-06-06 17:44:42,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:43,765 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 36 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:43,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:43,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469037266] [2021-06-06 17:44:43,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469037266] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:43,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133152082] [2021-06-06 17:44:43,766 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:43,813 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-06-06 17:44:43,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:44:43,814 WARN L261 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 81 conjunts are in the unsatisfiable core [2021-06-06 17:44:43,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:44,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:44,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 25 [2021-06-06 17:44:44,757 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:44:44,760 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:44:44,761 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:44:44,761 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:99, output treesize:3 [2021-06-06 17:44:44,799 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:44,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133152082] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:44,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:44,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 43 [2021-06-06 17:44:44,799 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769369881] [2021-06-06 17:44:44,799 INFO L462 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-06-06 17:44:44,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:44,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-06-06 17:44:44,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1690, Unknown=0, NotChecked=0, Total=1892 [2021-06-06 17:44:44,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:44,801 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:44,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.1818181818181817) internal successors, (96), 43 states have internal predecessors, (96), 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 17:44:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:44,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:44,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:44:44,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:44:44,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:44:44,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:47,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:44:47,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:44:47,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:44:47,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:44:47,510 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-06 17:44:47,510 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:47,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:47,510 INFO L82 PathProgramCache]: Analyzing trace with hash 322934345, now seen corresponding path program 12 times [2021-06-06 17:44:47,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:47,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059773986] [2021-06-06 17:44:47,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:48,625 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 49 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:48,625 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:48,625 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059773986] [2021-06-06 17:44:48,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059773986] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:48,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899615802] [2021-06-06 17:44:48,626 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:48,668 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-06-06 17:44:48,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:44:48,669 WARN L261 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 94 conjunts are in the unsatisfiable core [2021-06-06 17:44:48,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:49,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:49,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 103 treesize of output 27 [2021-06-06 17:44:49,932 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:44:49,940 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:44:49,941 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:44:49,942 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:122, output treesize:18 [2021-06-06 17:44:50,033 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:50,033 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899615802] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:50,033 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:50,034 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28] total 51 [2021-06-06 17:44:50,034 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826458592] [2021-06-06 17:44:50,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-06-06 17:44:50,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:50,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-06-06 17:44:50,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=2308, Unknown=0, NotChecked=0, Total=2652 [2021-06-06 17:44:50,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:50,037 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:50,037 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 2.019230769230769) internal successors, (105), 51 states have internal predecessors, (105), 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 17:44:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:50,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:50,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:50,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:50,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:44:50,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:44:50,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:44:50,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:44:50,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:44:52,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:44:52,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:44:53,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-06 17:44:53,122 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:53,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:53,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1220739195, now seen corresponding path program 13 times [2021-06-06 17:44:53,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:53,123 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039019205] [2021-06-06 17:44:53,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:54,310 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 28 proven. 214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:54,311 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:44:54,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039019205] [2021-06-06 17:44:54,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039019205] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:54,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479638533] [2021-06-06 17:44:54,311 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:44:54,351 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 96 conjunts are in the unsatisfiable core [2021-06-06 17:44:54,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:44:55,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:44:55,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 55 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 29 [2021-06-06 17:44:55,624 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:44:55,627 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:44:55,628 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:44:55,628 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:119, output treesize:3 [2021-06-06 17:44:55,659 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:44:55,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479638533] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:44:55,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:44:55,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 52 [2021-06-06 17:44:55,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242493921] [2021-06-06 17:44:55,660 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-06-06 17:44:55,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:44:55,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-06-06 17:44:55,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=2498, Unknown=0, NotChecked=0, Total=2756 [2021-06-06 17:44:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:55,661 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:44:55,662 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 2.1320754716981134) internal successors, (113), 52 states have internal predecessors, (113), 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 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:44:55,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:44:55,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:44:55,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:44:58,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:44:58,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:44:59,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:44:59,108 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:44:59,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:44:59,109 INFO L82 PathProgramCache]: Analyzing trace with hash -73340223, now seen corresponding path program 14 times [2021-06-06 17:44:59,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:44:59,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934778699] [2021-06-06 17:44:59,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:44:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:00,464 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 81 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:00,464 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:00,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934778699] [2021-06-06 17:45:00,464 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934778699] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:00,464 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721355517] [2021-06-06 17:45:00,464 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:00,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 17:45:00,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:45:00,517 WARN L261 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 104 conjunts are in the unsatisfiable core [2021-06-06 17:45:00,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:45:01,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:01,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:01,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:01,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:01,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:01,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:45:02,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 123 treesize of output 31 [2021-06-06 17:45:02,042 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 17:45:02,046 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:45:02,047 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 17:45:02,047 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:129, output treesize:3 [2021-06-06 17:45:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:02,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721355517] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:02,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 17:45:02,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29] total 56 [2021-06-06 17:45:02,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908541403] [2021-06-06 17:45:02,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-06-06 17:45:02,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 17:45:02,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-06-06 17:45:02,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=2869, Unknown=0, NotChecked=0, Total=3192 [2021-06-06 17:45:02,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:02,078 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 17:45:02,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 57 states, 57 states have (on average 2.1228070175438596) internal successors, (121), 56 states have internal predecessors, (121), 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 17:45:02,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:45:02,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:02,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:02,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:02,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:45:02,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 17:45:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-06 17:45:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-06 17:45:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 17:45:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-06 17:45:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-06 17:45:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-06 17:45:06,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-06 17:45:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-06-06 17:45:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-06 17:45:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-06 17:45:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-06 17:45:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-06 17:45:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-06 17:45:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-06 17:45:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-06 17:45:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-06 17:45:06,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 17:45:06,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-06 17:45:06,244 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 17:45:06,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 17:45:06,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1039816701, now seen corresponding path program 15 times [2021-06-06 17:45:06,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 17:45:06,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191932753] [2021-06-06 17:45:06,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 17:45:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 17:45:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 100 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 17:45:07,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 17:45:07,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191932753] [2021-06-06 17:45:07,549 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191932753] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 17:45:07,549 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575287920] [2021-06-06 17:45:07,549 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 17:45:07,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-06-06 17:45:07,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 17:45:07,604 WARN L261 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 114 conjunts are in the unsatisfiable core [2021-06-06 17:45:07,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 17:46:35,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:35,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 17:46:36,809 INFO L244 Elim1Store]: Index analysis took 1200 ms [2021-06-06 17:46:41,281 WARN L205 SmtUtils]: Spent 4.47 s on a formula simplification that was a NOOP. DAG size: 465 [2021-06-06 17:46:41,281 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 17:46:41,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 66 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 105 case distinctions, treesize of input 129 treesize of output 1227 [2021-06-06 17:46:41,827 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 851 DAG size of output: 651 [2021-06-06 17:46:42,278 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 877 DAG size of output: 678 [2021-06-06 17:46:45,468 WARN L205 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 4421 DAG size of output: 2670 [2021-06-06 17:46:48,720 WARN L205 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 4447 DAG size of output: 2697 [2021-06-06 17:47:17,929 WARN L205 SmtUtils]: Spent 26.13 s on a formula simplification. DAG size of input: 27054 DAG size of output: 12120 [2021-06-06 17:47:47,061 WARN L205 SmtUtils]: Spent 27.97 s on a formula simplification. DAG size of input: 27076 DAG size of output: 12143 [2021-06-06 17:51:00,700 WARN L205 SmtUtils]: Spent 3.01 m on a formula simplification. DAG size of input: 116855 DAG size of output: 51238 [2021-06-06 17:54:11,217 WARN L205 SmtUtils]: Spent 3.08 m on a formula simplification. DAG size of input: 116876 DAG size of output: 51260 [2021-06-06 17:54:20,212 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 82 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown