/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-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 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-14 06:14:43,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-14 06:14:43,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-14 06:14:43,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-14 06:14:44,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-14 06:14:44,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-14 06:14:44,058 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-14 06:14:44,061 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-NewStatesSleep-NoLbe-Random42.epf [2021-06-14 06:14:44,082 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-14 06:14:44,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-14 06:14:44,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-14 06:14:44,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-14 06:14:44,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-14 06:14:44,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-14 06:14:44,083 INFO L138 SettingsManager]: * Use SBE=true [2021-06-14 06:14:44,084 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-14 06:14:44,084 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-14 06:14:44,084 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-14 06:14:44,084 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-14 06:14:44,084 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-14 06:14:44,084 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-14 06:14:44,084 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-14 06:14:44,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-14 06:14:44,084 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-14 06:14:44,085 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-14 06:14:44,085 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-14 06:14:44,085 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-14 06:14:44,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-14 06:14:44,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-14 06:14:44,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-14 06:14:44,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-14 06:14:44,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-14 06:14:44,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-14 06:14:44,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-14 06:14:44,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-14 06:14:44,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-14 06:14:44,086 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-14 06:14:44,086 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-14 06:14:44,086 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-14 06:14:44,086 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-14 06:14:44,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-14 06:14:44,105 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-14 06:14:44,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-14 06:14:44,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-14 06:14:44,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-14 06:14:44,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-14 06:14:44,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-14 06:14:44,387 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-14 06:14:44,388 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-14 06:14:44,388 INFO L432 ainManager$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 [2021-06-14 06:14:44,389 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' [2021-06-14 06:14:44,422 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-14 06:14:44,424 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-14 06:14:44,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-14 06:14:44,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-14 06:14:44,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-14 06:14:44,435 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 14.06 06:14:44" (1/1) ... [2021-06-14 06:14:44,441 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 14.06 06:14:44" (1/1) ... [2021-06-14 06:14:44,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-14 06:14:44,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-14 06:14:44,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-14 06:14:44,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-14 06:14:44,453 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 14.06 06:14:44" (1/1) ... [2021-06-14 06:14:44,453 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 14.06 06:14:44" (1/1) ... [2021-06-14 06:14:44,454 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 14.06 06:14:44" (1/1) ... [2021-06-14 06:14:44,454 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 14.06 06:14:44" (1/1) ... [2021-06-14 06:14:44,457 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 14.06 06:14:44" (1/1) ... [2021-06-14 06:14:44,461 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 14.06 06:14:44" (1/1) ... [2021-06-14 06:14:44,461 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 14.06 06:14:44" (1/1) ... [2021-06-14 06:14:44,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-14 06:14:44,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-14 06:14:44,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-14 06:14:44,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-14 06:14:44,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:14:44" (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 [2021-06-14 06:14:44,528 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-14 06:14:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-14 06:14:44,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-14 06:14:44,528 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-14 06:14:44,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-14 06:14:44,529 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-14 06:14:44,530 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-14 06:14:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-14 06:14:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-14 06:14:44,530 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-14 06:14:44,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-14 06:14:44,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-14 06:14:44,531 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-14 06:14:44,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-14 06:14:44,687 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-14 06:14:44,688 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.06 06:14:44 BoogieIcfgContainer [2021-06-14 06:14:44,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-14 06:14:44,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-14 06:14:44,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-14 06:14:44,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-14 06:14:44,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.06 06:14:44" (1/2) ... [2021-06-14 06:14:44,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bef4197 and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.06 06:14:44, skipping insertion in model container [2021-06-14 06:14:44,692 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 14.06 06:14:44" (2/2) ... [2021-06-14 06:14:44,693 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2021-06-14 06:14:44,697 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-14 06:14:44,697 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-14 06:14:44,697 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-14 06:14:44,698 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-14 06:14:44,721 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-14 06:14:44,735 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 [2021-06-14 06:14:44,785 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-14 06:14:44,785 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-14 06:14:44,810 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-14 06:14:44,810 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-14 06:14:44,811 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-14 06:14:44,811 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-14 06:14:44,811 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-14 06:14:44,811 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-14 06:14:44,842 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:14:44,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:14:44,852 INFO L82 PathProgramCache]: Analyzing trace with hash 227140611, now seen corresponding path program 1 times [2021-06-14 06:14:44,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:14:44,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225877675] [2021-06-14 06:14:44,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:14:44,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:45,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-14 06:14:45,035 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:14:45,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225877675] [2021-06-14 06:14:45,036 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225877675] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-14 06:14:45,036 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-14 06:14:45,036 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-14 06:14:45,036 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131213410] [2021-06-14 06:14:45,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-14 06:14:45,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:14:45,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-14 06:14:45,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-14 06:14:45,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:45,054 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:14:45,058 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) [2021-06-14 06:14:45,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:45,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:45,115 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-14 06:14:45,115 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:14:45,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:14:45,118 INFO L82 PathProgramCache]: Analyzing trace with hash -659875561, now seen corresponding path program 1 times [2021-06-14 06:14:45,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:14:45,119 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262844615] [2021-06-14 06:14:45,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:14:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:45,302 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:45,303 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:14:45,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262844615] [2021-06-14 06:14:45,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262844615] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:45,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295367133] [2021-06-14 06:14:45,303 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 [2021-06-14 06:14:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:45,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-06-14 06:14:45,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:14:45,595 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 [2021-06-14 06:14:45,598 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:14:45,602 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:14:45,606 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:14:45,606 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:19, output treesize:3 [2021-06-14 06:14:45,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:45,634 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295367133] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:45,634 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:14:45,634 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-06-14 06:14:45,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150121308] [2021-06-14 06:14:45,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-14 06:14:45,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:14:45,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-14 06:14:45,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-06-14 06:14:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:45,636 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:14:45,636 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.0) internal successors, (33), 10 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:14:45,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:45,637 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:45,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:45,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:45,970 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:14:45,970 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:14:45,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:14:45,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1954342645, now seen corresponding path program 2 times [2021-06-14 06:14:45,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:14:45,971 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096044291] [2021-06-14 06:14:45,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:14:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:46,021 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:46,021 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:14:46,021 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096044291] [2021-06-14 06:14:46,021 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096044291] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:46,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947564440] [2021-06-14 06:14:46,022 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 [2021-06-14 06:14:46,063 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 06:14:46,063 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:14:46,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-14 06:14:46,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:14:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:46,120 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947564440] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:46,120 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:14:46,120 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-06-14 06:14:46,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58847575] [2021-06-14 06:14:46,120 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-14 06:14:46,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:14:46,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-14 06:14:46,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2021-06-14 06:14:46,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:46,121 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:14:46,121 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:14:46,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:46,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:46,121 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:46,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:46,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:46,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:46,455 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:14:46,455 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:14:46,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:14:46,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1659693907, now seen corresponding path program 3 times [2021-06-14 06:14:46,456 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:14:46,456 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674827410] [2021-06-14 06:14:46,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:14:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:46,745 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:46,745 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:14:46,745 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674827410] [2021-06-14 06:14:46,746 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674827410] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:46,746 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1281131436] [2021-06-14 06:14:46,746 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 [2021-06-14 06:14:46,776 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-14 06:14:46,776 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:14:46,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 24 conjunts are in the unsatisfiable core [2021-06-14 06:14:46,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:14:46,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:46,936 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 [2021-06-14 06:14:46,937 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:14:46,940 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:14:46,941 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:14:46,941 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:29, output treesize:3 [2021-06-14 06:14:46,967 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:46,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1281131436] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:46,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:14:46,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 16 [2021-06-14 06:14:46,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237205468] [2021-06-14 06:14:46,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-14 06:14:46,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:14:46,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-14 06:14:46,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2021-06-14 06:14:46,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:46,969 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:14:46,969 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 16 states have internal predecessors, (42), 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) [2021-06-14 06:14:46,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:46,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:46,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:46,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:47,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:47,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:47,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:47,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:47,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:14:47,465 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:14:47,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:14:47,465 INFO L82 PathProgramCache]: Analyzing trace with hash -76281457, now seen corresponding path program 4 times [2021-06-14 06:14:47,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:14:47,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168553226] [2021-06-14 06:14:47,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:14:47,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:47,522 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:47,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:14:47,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168553226] [2021-06-14 06:14:47,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1168553226] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:47,524 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228450979] [2021-06-14 06:14:47,524 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 [2021-06-14 06:14:47,554 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 06:14:47,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:14:47,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-14 06:14:47,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:14:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 9 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:47,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228450979] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:47,642 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:14:47,642 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 13 [2021-06-14 06:14:47,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489546891] [2021-06-14 06:14:47,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-14 06:14:47,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:14:47,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-14 06:14:47,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-14 06:14:47,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:47,643 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:14:47,643 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:14:47,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:47,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:47,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:47,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:47,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:47,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:47,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:47,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:47,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:47,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:14:48,024 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:14:48,025 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:14:48,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:14:48,025 INFO L82 PathProgramCache]: Analyzing trace with hash 145084269, now seen corresponding path program 5 times [2021-06-14 06:14:48,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:14:48,026 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058330297] [2021-06-14 06:14:48,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:14:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:48,103 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:48,103 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:14:48,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058330297] [2021-06-14 06:14:48,103 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058330297] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:48,103 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [879556793] [2021-06-14 06:14:48,103 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) [2021-06-14 06:14:48,140 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-14 06:14:48,140 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:14:48,141 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-14 06:14:48,146 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:14:48,218 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:48,218 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [879556793] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:48,218 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:14:48,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 14 [2021-06-14 06:14:48,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340601180] [2021-06-14 06:14:48,219 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-14 06:14:48,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:14:48,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-14 06:14:48,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-06-14 06:14:48,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:48,219 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:14:48,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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) [2021-06-14 06:14:48,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:48,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:48,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:48,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:48,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:14:48,220 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:48,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:48,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:48,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:48,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:48,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:14:48,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:14:48,633 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:14:48,633 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:14:48,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:14:48,633 INFO L82 PathProgramCache]: Analyzing trace with hash -1870817845, now seen corresponding path program 6 times [2021-06-14 06:14:48,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:14:48,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271426729] [2021-06-14 06:14:48,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:14:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:49,050 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:49,050 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:14:49,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271426729] [2021-06-14 06:14:49,050 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271426729] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:49,050 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150849140] [2021-06-14 06:14:49,050 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 [2021-06-14 06:14:49,081 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-06-14 06:14:49,081 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:14:49,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 41 conjunts are in the unsatisfiable core [2021-06-14 06:14:49,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:14:49,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:49,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:49,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:49,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:49,418 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 06:14:49,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:49,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:49,425 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 06:14:49,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:49,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:49,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 06:14:49,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-14 06:14:49,429 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 [2021-06-14 06:14:49,430 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:14:49,433 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:14:49,434 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:14:49,434 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:43, output treesize:3 [2021-06-14 06:14:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:49,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150849140] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:49,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:14:49,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 26 [2021-06-14 06:14:49,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251798198] [2021-06-14 06:14:49,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-14 06:14:49,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:14:49,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-14 06:14:49,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2021-06-14 06:14:49,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:49,477 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:14:49,478 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) [2021-06-14 06:14:49,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:49,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:49,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:49,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:49,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:14:49,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:14:49,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:50,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:50,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:50,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:50,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:50,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:14:50,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:14:50,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:14:50,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:14:50,877 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:14:50,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:14:50,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1005219335, now seen corresponding path program 7 times [2021-06-14 06:14:50,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:14:50,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905759410] [2021-06-14 06:14:50,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:14:50,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:51,388 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 4 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:51,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:14:51,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905759410] [2021-06-14 06:14:51,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905759410] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:51,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539676702] [2021-06-14 06:14:51,389 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 [2021-06-14 06:14:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:51,416 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2021-06-14 06:14:51,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:14:51,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:51,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:51,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:51,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:51,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:51,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:51,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:51,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:51,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:51,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:51,766 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 [2021-06-14 06:14:51,770 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:14:51,773 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:14:51,778 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:14:51,778 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:59, output treesize:3 [2021-06-14 06:14:51,800 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:51,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539676702] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:51,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:14:51,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 28 [2021-06-14 06:14:51,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296483456] [2021-06-14 06:14:51,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-14 06:14:51,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:14:51,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-14 06:14:51,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2021-06-14 06:14:51,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:51,801 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:14:51,802 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.2758620689655173) internal successors, (66), 28 states have internal predecessors, (66), 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) [2021-06-14 06:14:51,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:51,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:51,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:51,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:51,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:14:51,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:14:51,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:14:51,802 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:52,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:52,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:52,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:14:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:14:52,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:14:52,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:14:53,156 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-14 06:14:53,157 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:14:53,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:14:53,157 INFO L82 PathProgramCache]: Analyzing trace with hash 2024687683, now seen corresponding path program 8 times [2021-06-14 06:14:53,158 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:14:53,158 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029971054] [2021-06-14 06:14:53,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:14:53,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:53,759 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 9 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:53,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:14:53,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029971054] [2021-06-14 06:14:53,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029971054] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:53,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692898932] [2021-06-14 06:14:53,759 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 [2021-06-14 06:14:53,788 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 06:14:53,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:14:53,790 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 62 conjunts are in the unsatisfiable core [2021-06-14 06:14:53,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:14:54,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:54,349 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 [2021-06-14 06:14:54,350 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:14:54,356 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:14:54,361 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:14:54,361 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:82, output treesize:18 [2021-06-14 06:14:54,415 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:54,415 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692898932] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:54,415 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:14:54,415 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 35 [2021-06-14 06:14:54,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074306107] [2021-06-14 06:14:54,416 INFO L462 AbstractCegarLoop]: Interpolant automaton has 36 states [2021-06-14 06:14:54,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:14:54,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-06-14 06:14:54,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1084, Unknown=0, NotChecked=0, Total=1260 [2021-06-14 06:14:54,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:54,417 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:14:54,417 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 36 states, 36 states have (on average 2.0555555555555554) internal successors, (74), 35 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-14 06:14:54,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:54,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:54,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:54,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:54,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:14:54,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:14:54,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:14:54,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:14:54,417 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:14:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:14:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:14:55,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:14:55,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:14:55,821 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:14:55,824 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:14:55,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:14:55,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1474812801, now seen corresponding path program 9 times [2021-06-14 06:14:55,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:14:55,824 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109624616] [2021-06-14 06:14:55,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:14:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:56,467 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 20 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:56,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:14:56,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109624616] [2021-06-14 06:14:56,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109624616] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:56,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870692284] [2021-06-14 06:14:56,468 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 [2021-06-14 06:14:56,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-14 06:14:56,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:14:56,513 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 71 conjunts are in the unsatisfiable core [2021-06-14 06:14:56,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:14:57,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:14:57,142 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 [2021-06-14 06:14:57,143 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:14:57,149 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:14:57,150 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:14:57,150 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:92, output treesize:18 [2021-06-14 06:14:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:57,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870692284] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:57,203 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:14:57,203 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 38 [2021-06-14 06:14:57,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580505373] [2021-06-14 06:14:57,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 39 states [2021-06-14 06:14:57,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:14:57,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-06-14 06:14:57,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1271, Unknown=0, NotChecked=0, Total=1482 [2021-06-14 06:14:57,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:57,204 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:14:57,204 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 39 states, 39 states have (on average 2.076923076923077) internal successors, (81), 38 states have internal predecessors, (81), 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) [2021-06-14 06:14:57,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:57,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:57,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:57,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:57,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:14:57,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:14:57,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:14:57,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:14:57,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:14:57,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:14:58,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:14:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:14:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:14:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:14:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:14:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:14:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:14:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:14:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:14:58,803 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:14:58,803 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:14:58,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:14:58,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1140261563, now seen corresponding path program 10 times [2021-06-14 06:14:58,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:14:58,804 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004738263] [2021-06-14 06:14:58,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:14:58,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:14:59,545 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 25 proven. 103 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:14:59,545 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:14:59,545 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004738263] [2021-06-14 06:14:59,545 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004738263] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:14:59,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852662659] [2021-06-14 06:14:59,546 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 [2021-06-14 06:14:59,577 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-14 06:14:59,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:14:59,578 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 72 conjunts are in the unsatisfiable core [2021-06-14 06:14:59,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:15:00,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:00,252 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 [2021-06-14 06:15:00,253 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:15:00,256 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:15:00,257 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:15:00,257 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:89, output treesize:3 [2021-06-14 06:15:00,282 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:15:00,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852662659] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:15:00,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:15:00,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21] total 40 [2021-06-14 06:15:00,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413295223] [2021-06-14 06:15:00,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 41 states [2021-06-14 06:15:00,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:15:00,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-06-14 06:15:00,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1464, Unknown=0, NotChecked=0, Total=1640 [2021-06-14 06:15:00,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:15:00,283 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:15:00,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 41 states, 41 states have (on average 2.1951219512195124) internal successors, (90), 40 states have internal predecessors, (90), 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) [2021-06-14 06:15:00,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:15:00,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:15:00,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:00,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:00,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:15:00,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:15:00,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:15:00,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:15:00,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:15:00,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:15:00,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:15:02,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:15:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:15:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:15:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:15:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:15:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:15:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:15:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:15:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:15:02,407 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-06-14 06:15:02,407 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:15:02,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:15:02,408 INFO L82 PathProgramCache]: Analyzing trace with hash -1634082057, now seen corresponding path program 11 times [2021-06-14 06:15:02,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:15:02,408 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840352247] [2021-06-14 06:15:02,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:15:02,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:15:03,317 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 36 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:15:03,318 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:15:03,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840352247] [2021-06-14 06:15:03,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840352247] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:15:03,318 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53002703] [2021-06-14 06:15:03,318 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 [2021-06-14 06:15:03,358 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2021-06-14 06:15:03,358 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:15:03,360 WARN L261 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 81 conjunts are in the unsatisfiable core [2021-06-14 06:15:03,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:15:04,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:04,287 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 [2021-06-14 06:15:04,288 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:15:04,291 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:15:04,293 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:15:04,293 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:99, output treesize:3 [2021-06-14 06:15:04,318 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:15:04,318 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53002703] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:15:04,319 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:15:04,319 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 23] total 43 [2021-06-14 06:15:04,319 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668847452] [2021-06-14 06:15:04,319 INFO L462 AbstractCegarLoop]: Interpolant automaton has 44 states [2021-06-14 06:15:04,319 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:15:04,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-06-14 06:15:04,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1690, Unknown=0, NotChecked=0, Total=1892 [2021-06-14 06:15:04,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:15:04,320 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:15:04,320 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 44 states, 44 states have (on average 2.2045454545454546) internal successors, (97), 43 states have internal predecessors, (97), 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) [2021-06-14 06:15:04,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:15:04,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:15:04,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:04,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:04,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:15:04,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:15:04,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:15:04,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:15:04,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:15:04,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:15:04,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:15:04,321 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:15:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:15:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:15:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:15:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:15:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:15:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:15:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:15:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:15:06,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:15:06,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:15:07,009 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:15:07,009 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:15:07,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:15:07,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1563441869, now seen corresponding path program 12 times [2021-06-14 06:15:07,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:15:07,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015971483] [2021-06-14 06:15:07,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:15:07,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:15:07,958 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 49 proven. 151 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:15:07,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:15:07,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015971483] [2021-06-14 06:15:07,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015971483] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:15:07,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345930563] [2021-06-14 06:15:07,959 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 [2021-06-14 06:15:07,999 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2021-06-14 06:15:08,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:15:08,001 WARN L261 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 94 conjunts are in the unsatisfiable core [2021-06-14 06:15:08,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:15:09,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:09,132 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 [2021-06-14 06:15:09,134 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:15:09,140 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:15:09,144 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:15:09,145 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:122, output treesize:18 [2021-06-14 06:15:09,214 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:15:09,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345930563] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:15:09,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:15:09,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28] total 51 [2021-06-14 06:15:09,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328179013] [2021-06-14 06:15:09,215 INFO L462 AbstractCegarLoop]: Interpolant automaton has 52 states [2021-06-14 06:15:09,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:15:09,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-06-14 06:15:09,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=344, Invalid=2308, Unknown=0, NotChecked=0, Total=2652 [2021-06-14 06:15:09,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:15:09,216 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:15:09,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 52 states, 52 states have (on average 2.0384615384615383) internal successors, (106), 51 states have internal predecessors, (106), 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) [2021-06-14 06:15:09,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:15:09,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:15:09,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:09,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:09,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:15:09,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:15:09,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:15:09,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:15:09,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:15:09,216 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:15:09,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:15:09,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:15:09,217 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:15:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:15:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:15:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:15:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:15:11,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:15:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:15:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:15:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:15:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:15:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:15:11,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:15:12,009 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-06-14 06:15:12,009 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:15:12,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:15:12,010 INFO L82 PathProgramCache]: Analyzing trace with hash -1813534353, now seen corresponding path program 13 times [2021-06-14 06:15:12,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:15:12,010 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200265955] [2021-06-14 06:15:12,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:15:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:15:13,066 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 28 proven. 214 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:15:13,067 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:15:13,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200265955] [2021-06-14 06:15:13,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200265955] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:15:13,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697375522] [2021-06-14 06:15:13,067 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 [2021-06-14 06:15:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:15:13,104 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 96 conjunts are in the unsatisfiable core [2021-06-14 06:15:13,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:15:14,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:14,359 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 [2021-06-14 06:15:14,360 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:15:14,363 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:15:14,363 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:15:14,363 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:119, output treesize:3 [2021-06-14 06:15:14,413 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:15:14,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697375522] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:15:14,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:15:14,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 52 [2021-06-14 06:15:14,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15795343] [2021-06-14 06:15:14,415 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-06-14 06:15:14,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:15:14,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-06-14 06:15:14,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=2498, Unknown=0, NotChecked=0, Total=2756 [2021-06-14 06:15:14,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:15:14,416 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:15:14,421 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 2.150943396226415) internal successors, (114), 52 states have internal predecessors, (114), 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) [2021-06-14 06:15:14,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:15:14,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:15:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:15:18,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-14 06:15:18,018 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:15:18,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:15:18,019 INFO L82 PathProgramCache]: Analyzing trace with hash -844066901, now seen corresponding path program 14 times [2021-06-14 06:15:18,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:15:18,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959750527] [2021-06-14 06:15:18,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:15:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:15:19,182 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 81 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:15:19,183 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:15:19,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959750527] [2021-06-14 06:15:19,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959750527] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:15:19,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871177260] [2021-06-14 06:15:19,183 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 [2021-06-14 06:15:19,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-14 06:15:19,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:15:19,222 WARN L261 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 104 conjunts are in the unsatisfiable core [2021-06-14 06:15:19,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:15:20,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:15:20,707 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 [2021-06-14 06:15:20,710 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-14 06:15:20,713 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:15:20,714 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-14 06:15:20,715 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:129, output treesize:3 [2021-06-14 06:15:20,743 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:15:20,743 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871177260] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:15:20,743 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-14 06:15:20,743 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 29] total 56 [2021-06-14 06:15:20,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928021162] [2021-06-14 06:15:20,743 INFO L462 AbstractCegarLoop]: Interpolant automaton has 57 states [2021-06-14 06:15:20,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-14 06:15:20,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-06-14 06:15:20,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=2869, Unknown=0, NotChecked=0, Total=3192 [2021-06-14 06:15:20,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:15:20,744 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-14 06:15:20,745 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 57 states, 57 states have (on average 2.1403508771929824) internal successors, (122), 56 states have internal predecessors, (122), 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) [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:15:20,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-06-14 06:15:24,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-06-14 06:15:24,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-14 06:15:24,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-14 06:15:24,549 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-14 06:15:24,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-14 06:15:24,550 INFO L82 PathProgramCache]: Analyzing trace with hash -2072414233, now seen corresponding path program 15 times [2021-06-14 06:15:24,550 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-14 06:15:24,550 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565791293] [2021-06-14 06:15:24,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-14 06:15:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-14 06:15:25,714 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 100 proven. 238 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-14 06:15:25,714 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-14 06:15:25,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565791293] [2021-06-14 06:15:25,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565791293] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-14 06:15:25,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500522176] [2021-06-14 06:15:25,715 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 [2021-06-14 06:15:25,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2021-06-14 06:15:25,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-14 06:15:25,763 WARN L261 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 114 conjunts are in the unsatisfiable core [2021-06-14 06:15:25,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-14 06:16:55,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:55,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-14 06:16:56,540 INFO L244 Elim1Store]: Index analysis took 1180 ms [2021-06-14 06:17:01,013 WARN L205 SmtUtils]: Spent 4.47 s on a formula simplification that was a NOOP. DAG size: 465 [2021-06-14 06:17:01,013 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-14 06:17:01,014 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 [2021-06-14 06:17:01,405 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 851 DAG size of output: 651 [2021-06-14 06:17:01,726 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 877 DAG size of output: 678 [2021-06-14 06:17:04,764 WARN L205 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 4421 DAG size of output: 2670 [2021-06-14 06:17:07,937 WARN L205 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 4447 DAG size of output: 2697 [2021-06-14 06:17:36,600 WARN L205 SmtUtils]: Spent 26.28 s on a formula simplification. DAG size of input: 27054 DAG size of output: 12120 [2021-06-14 06:18:05,991 WARN L205 SmtUtils]: Spent 28.29 s on a formula simplification. DAG size of input: 27076 DAG size of output: 12143 [2021-06-14 06:21:15,582 WARN L205 SmtUtils]: Spent 2.96 m on a formula simplification. DAG size of input: 116855 DAG size of output: 51238 [2021-06-14 06:24:27,671 WARN L205 SmtUtils]: Spent 3.12 m on a formula simplification. DAG size of input: 116876 DAG size of output: 51260 [2021-06-14 06:24:58,340 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-06-14 06:25:00,771 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-06-14 06:25:09,629 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 47 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown