/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/horseshoe.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-07 03:28:42,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-07 03:28:42,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-07 03:28:42,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-07 03:28:42,258 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random7777.epf [2021-06-07 03:28:42,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-07 03:28:42,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-07 03:28:42,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-07 03:28:42,276 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-07 03:28:42,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-07 03:28:42,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-07 03:28:42,277 INFO L138 SettingsManager]: * Use SBE=true [2021-06-07 03:28:42,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-07 03:28:42,277 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-07 03:28:42,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-07 03:28:42,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-07 03:28:42,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-07 03:28:42,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-07 03:28:42,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-07 03:28:42,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-07 03:28:42,278 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-07 03:28:42,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-07 03:28:42,278 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-07 03:28:42,278 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-07 03:28:42,278 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-07 03:28:42,278 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-07 03:28:42,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-07 03:28:42,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-07 03:28:42,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-07 03:28:42,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-07 03:28:42,279 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-07 03:28:42,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-07 03:28:42,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-07 03:28:42,279 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-07 03:28:42,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-07 03:28:42,279 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-07 03:28:42,279 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-07 03:28:42,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-07 03:28:42,279 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-07 03:28:42,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-07 03:28:42,279 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-07 03:28:42,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-07 03:28:42,550 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-07 03:28:42,552 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-07 03:28:42,553 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-07 03:28:42,554 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-07 03:28:42,555 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/horseshoe.wvr.bpl [2021-06-07 03:28:42,555 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/horseshoe.wvr.bpl' [2021-06-07 03:28:42,582 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-07 03:28:42,583 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-07 03:28:42,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-07 03:28:42,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-07 03:28:42,584 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-07 03:28:42,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:28:42" (1/1) ... [2021-06-07 03:28:42,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:28:42" (1/1) ... [2021-06-07 03:28:42,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-07 03:28:42,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-07 03:28:42,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-07 03:28:42,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-07 03:28:42,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:28:42" (1/1) ... [2021-06-07 03:28:42,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:28:42" (1/1) ... [2021-06-07 03:28:42,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:28:42" (1/1) ... [2021-06-07 03:28:42,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:28:42" (1/1) ... [2021-06-07 03:28:42,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:28:42" (1/1) ... [2021-06-07 03:28:42,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:28:42" (1/1) ... [2021-06-07 03:28:42,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:28:42" (1/1) ... [2021-06-07 03:28:42,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-07 03:28:42,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-07 03:28:42,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-07 03:28:42,616 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-07 03:28:42,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:28:42" (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 [2021-06-07 03:28:42,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-07 03:28:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-07 03:28:42,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-07 03:28:42,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-07 03:28:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-07 03:28:42,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-07 03:28:42,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-07 03:28:42,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-07 03:28:42,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-07 03:28:42,672 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-07 03:28:42,672 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-07 03:28:42,672 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-07 03:28:42,672 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-07 03:28:42,891 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-07 03:28:42,891 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-07 03:28:42,893 INFO L202 PluginConnector]: Adding new model horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 03:28:42 BoogieIcfgContainer [2021-06-07 03:28:42,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-07 03:28:42,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-07 03:28:42,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-07 03:28:42,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-07 03:28:42,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.06 03:28:42" (1/2) ... [2021-06-07 03:28:42,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@425e96c0 and model type horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.06 03:28:42, skipping insertion in model container [2021-06-07 03:28:42,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "horseshoe.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.06 03:28:42" (2/2) ... [2021-06-07 03:28:42,898 INFO L111 eAbstractionObserver]: Analyzing ICFG horseshoe.wvr.bpl [2021-06-07 03:28:42,901 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-07 03:28:42,902 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-07 03:28:42,902 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-07 03:28:42,902 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-07 03:28:42,956 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-07 03:28:42,970 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 [2021-06-07 03:28:43,009 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-07 03:28:43,009 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-07 03:28:43,010 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-07 03:28:43,010 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-07 03:28:43,010 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-07 03:28:43,010 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-07 03:28:43,010 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-07 03:28:43,010 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-07 03:28:43,034 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:28:43,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:28:43,038 INFO L82 PathProgramCache]: Analyzing trace with hash -131618433, now seen corresponding path program 1 times [2021-06-07 03:28:43,043 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:28:43,043 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401568981] [2021-06-07 03:28:43,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:28:43,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:43,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:43,122 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:28:43,122 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401568981] [2021-06-07 03:28:43,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401568981] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:28:43,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 03:28:43,123 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-07 03:28:43,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884471895] [2021-06-07 03:28:43,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 03:28:43,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:28:43,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 03:28:43,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 03:28:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:43,136 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:28:43,137 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 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) [2021-06-07 03:28:43,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:43,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:43,227 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-07 03:28:43,227 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:28:43,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:28:43,230 INFO L82 PathProgramCache]: Analyzing trace with hash -619594418, now seen corresponding path program 1 times [2021-06-07 03:28:43,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:28:43,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138374672] [2021-06-07 03:28:43,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:28:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:43,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:43,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:28:43,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138374672] [2021-06-07 03:28:43,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138374672] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:43,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863643766] [2021-06-07 03:28:43,504 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 [2021-06-07 03:28:43,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:43,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-07 03:28:43,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:28:43,708 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 [2021-06-07 03:28:43,713 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:43,719 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:43,720 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:43,721 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:13 [2021-06-07 03:28:43,777 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 17 treesize of output 9 [2021-06-07 03:28:43,780 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:43,786 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:43,787 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:43,788 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:15 [2021-06-07 03:28:43,960 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:43,960 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863643766] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:43,960 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:28:43,960 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10] total 21 [2021-06-07 03:28:43,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759520214] [2021-06-07 03:28:43,962 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-07 03:28:43,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:28:43,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-07 03:28:43,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-06-07 03:28:43,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:43,964 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:28:43,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.227272727272727) internal successors, (49), 21 states have internal predecessors, (49), 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) [2021-06-07 03:28:43,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:43,965 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:44,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:44,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:28:44,654 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:28:44,655 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:28:44,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:28:44,655 INFO L82 PathProgramCache]: Analyzing trace with hash -372949935, now seen corresponding path program 2 times [2021-06-07 03:28:44,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:28:44,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481887891] [2021-06-07 03:28:44,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:28:44,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:44,703 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:44,703 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:28:44,703 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481887891] [2021-06-07 03:28:44,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481887891] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:44,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987466254] [2021-06-07 03:28:44,704 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 [2021-06-07 03:28:44,746 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:28:44,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:28:44,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-07 03:28:44,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:28:44,799 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-07 03:28:44,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987466254] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:28:44,799 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-07 03:28:44,799 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2021-06-07 03:28:44,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398027877] [2021-06-07 03:28:44,800 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 03:28:44,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:28:44,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 03:28:44,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-06-07 03:28:44,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:44,800 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:28:44,801 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 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) [2021-06-07 03:28:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-07 03:28:44,801 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:28:44,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:45,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:28:45,093 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:28:45,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:28:45,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1695275775, now seen corresponding path program 3 times [2021-06-07 03:28:45,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:28:45,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069196641] [2021-06-07 03:28:45,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:28:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:45,128 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:45,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:28:45,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069196641] [2021-06-07 03:28:45,129 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069196641] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:45,129 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263847808] [2021-06-07 03:28:45,129 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 [2021-06-07 03:28:45,205 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-07 03:28:45,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:28:45,206 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 4 conjunts are in the unsatisfiable core [2021-06-07 03:28:45,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:28:45,261 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-07 03:28:45,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263847808] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:28:45,261 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-06-07 03:28:45,261 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2021-06-07 03:28:45,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900017725] [2021-06-07 03:28:45,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-07 03:28:45,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:28:45,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-07 03:28:45,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-07 03:28:45,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:45,262 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:28:45,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:28:45,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:45,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:28:45,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:45,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:28:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:45,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:45,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:28:45,581 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:28:45,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:28:45,581 INFO L82 PathProgramCache]: Analyzing trace with hash 2144344619, now seen corresponding path program 1 times [2021-06-07 03:28:45,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:28:45,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530025510] [2021-06-07 03:28:45,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:28:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:45,594 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:45,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:28:45,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530025510] [2021-06-07 03:28:45,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530025510] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-07 03:28:45,594 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-07 03:28:45,594 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-07 03:28:45,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698282189] [2021-06-07 03:28:45,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-07 03:28:45,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:28:45,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-07 03:28:45,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-07 03:28:45,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:45,595 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:28:45,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 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) [2021-06-07 03:28:45,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:45,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-07 03:28:45,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:45,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:45,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:45,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:45,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:28:45,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:45,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:45,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:45,735 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-07 03:28:45,735 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:28:45,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:28:45,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1405426242, now seen corresponding path program 1 times [2021-06-07 03:28:45,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:28:45,736 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631873488] [2021-06-07 03:28:45,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:28:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:46,257 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:46,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:28:46,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631873488] [2021-06-07 03:28:46,268 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631873488] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:46,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884665725] [2021-06-07 03:28:46,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-06-07 03:28:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:46,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 41 conjunts are in the unsatisfiable core [2021-06-07 03:28:46,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:28:46,698 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-06-07 03:28:46,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 13 [2021-06-07 03:28:46,700 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:46,707 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:46,708 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:46,708 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:47, output treesize:29 [2021-06-07 03:28:46,784 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-06-07 03:28:46,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 17 [2021-06-07 03:28:46,787 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:46,792 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:46,793 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:46,793 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:38, output treesize:20 [2021-06-07 03:28:47,010 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:47,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1884665725] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:47,010 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:28:47,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2021-06-07 03:28:47,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377600027] [2021-06-07 03:28:47,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-06-07 03:28:47,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:28:47,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-06-07 03:28:47,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1214, Unknown=0, NotChecked=0, Total=1332 [2021-06-07 03:28:47,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:47,011 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:28:47,011 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 1.972972972972973) internal successors, (73), 36 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:28:47,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:47,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:28:47,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:47,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:47,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:47,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:28:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:49,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-06-07 03:28:49,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-06-07 03:28:49,593 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:28:49,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:28:49,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1564408475, now seen corresponding path program 2 times [2021-06-07 03:28:49,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:28:49,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142459976] [2021-06-07 03:28:49,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:28:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:49,640 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:49,641 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:28:49,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142459976] [2021-06-07 03:28:49,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142459976] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:49,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125925216] [2021-06-07 03:28:49,641 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:28:49,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:28:49,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:28:49,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 12 conjunts are in the unsatisfiable core [2021-06-07 03:28:49,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:28:49,713 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 [2021-06-07 03:28:49,714 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:49,717 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:49,718 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:49,718 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:14, output treesize:7 [2021-06-07 03:28:49,752 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 [2021-06-07 03:28:49,754 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:49,755 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:49,755 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:49,755 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-07 03:28:49,777 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:49,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125925216] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:49,777 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:28:49,777 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-06-07 03:28:49,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075153317] [2021-06-07 03:28:49,778 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-07 03:28:49,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:28:49,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-07 03:28:49,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-06-07 03:28:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:49,778 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:28:49,779 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 11 states have internal predecessors, (46), 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) [2021-06-07 03:28:49,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:49,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:28:49,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:49,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:49,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:49,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-06-07 03:28:49,779 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:50,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:50,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:28:50,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:50,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:50,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:50,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-07 03:28:50,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:28:50,462 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:28:50,462 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:28:50,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:28:50,463 INFO L82 PathProgramCache]: Analyzing trace with hash -829121372, now seen corresponding path program 3 times [2021-06-07 03:28:50,463 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:28:50,463 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465100349] [2021-06-07 03:28:50,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:28:50,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:50,948 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:50,948 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:28:50,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465100349] [2021-06-07 03:28:50,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465100349] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:50,950 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1133285855] [2021-06-07 03:28:50,950 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 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 [2021-06-07 03:28:50,983 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-06-07 03:28:50,984 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:28:50,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 43 conjunts are in the unsatisfiable core [2021-06-07 03:28:50,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:28:51,235 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-06-07 03:28:51,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2021-06-07 03:28:51,237 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:51,244 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:51,245 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:51,245 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:48, output treesize:28 [2021-06-07 03:28:51,521 INFO L354 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2021-06-07 03:28:51,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 26 [2021-06-07 03:28:51,522 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:51,528 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:51,528 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:51,528 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:46, output treesize:22 [2021-06-07 03:28:51,623 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:51,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1133285855] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:51,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:28:51,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 34 [2021-06-07 03:28:51,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447884222] [2021-06-07 03:28:51,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-07 03:28:51,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:28:51,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-07 03:28:51,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1095, Unknown=0, NotChecked=0, Total=1190 [2021-06-07 03:28:51,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:51,624 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:28:51,624 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.085714285714286) internal successors, (73), 34 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:28:51,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:51,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:28:51,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:51,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:51,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:51,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2021-06-07 03:28:51,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:28:51,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:28:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-07 03:28:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:28:53,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:28:53,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:28:53,320 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:28:53,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:28:53,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1812343451, now seen corresponding path program 4 times [2021-06-07 03:28:53,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:28:53,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464149131] [2021-06-07 03:28:53,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:28:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:53,469 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-07 03:28:53,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:28:53,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464149131] [2021-06-07 03:28:53,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464149131] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:53,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412495768] [2021-06-07 03:28:53,469 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 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 [2021-06-07 03:28:53,501 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 03:28:53,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:28:53,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 22 conjunts are in the unsatisfiable core [2021-06-07 03:28:53,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:28:53,572 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 15 treesize of output 7 [2021-06-07 03:28:53,573 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:53,576 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:53,576 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:53,576 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:18, output treesize:7 [2021-06-07 03:28:53,607 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 [2021-06-07 03:28:53,608 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:53,609 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:53,610 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:53,610 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-07 03:28:53,644 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-07 03:28:53,644 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412495768] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:53,644 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:28:53,644 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 13 [2021-06-07 03:28:53,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695090792] [2021-06-07 03:28:53,645 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-07 03:28:53,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:28:53,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-07 03:28:53,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-06-07 03:28:53,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:53,645 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:28:53,645 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:28:53,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:53,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:28:53,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:53,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:53,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:53,645 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-06-07 03:28:53,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:28:53,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:28:53,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:28:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-06-07 03:28:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:28:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:28:54,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-07 03:28:54,278 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-06-07 03:28:54,278 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:28:54,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:28:54,278 INFO L82 PathProgramCache]: Analyzing trace with hash -968635228, now seen corresponding path program 5 times [2021-06-07 03:28:54,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:28:54,279 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385619862] [2021-06-07 03:28:54,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:28:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:28:54,929 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-07 03:28:54,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:28:54,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385619862] [2021-06-07 03:28:54,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385619862] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:54,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833341385] [2021-06-07 03:28:54,930 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 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 [2021-06-07 03:28:54,982 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-06-07 03:28:54,982 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:28:54,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 65 conjunts are in the unsatisfiable core [2021-06-07 03:28:54,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:28:55,518 INFO L354 Elim1Store]: treesize reduction 36, result has 2.7 percent of original size [2021-06-07 03:28:55,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 65 treesize of output 37 [2021-06-07 03:28:55,520 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:55,530 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:55,531 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:55,531 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:77, output treesize:35 [2021-06-07 03:28:56,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:28:56,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:28:56,173 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:28:56,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:28:56,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 31 [2021-06-07 03:28:56,175 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:28:56,183 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:28:56,185 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:28:56,185 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:68, output treesize:15 [2021-06-07 03:28:56,282 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:28:56,282 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833341385] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:28:56,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:28:56,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 44 [2021-06-07 03:28:56,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355254752] [2021-06-07 03:28:56,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 45 states [2021-06-07 03:28:56,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:28:56,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-06-07 03:28:56,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1856, Unknown=0, NotChecked=0, Total=1980 [2021-06-07 03:28:56,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:28:56,284 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:28:56,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 45 states, 45 states have (on average 2.066666666666667) internal successors, (93), 44 states have internal predecessors, (93), 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) [2021-06-07 03:28:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:28:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:28:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:28:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-06-07 03:28:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:28:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:28:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-07 03:28:56,284 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:29:00,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:29:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:29:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:29:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:29:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:29:00,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:29:00,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:29:00,760 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:29:00,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:29:00,761 INFO L82 PathProgramCache]: Analyzing trace with hash 2110248702, now seen corresponding path program 6 times [2021-06-07 03:29:00,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:29:00,761 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782497437] [2021-06-07 03:29:00,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:29:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:29:01,936 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-06-07 03:29:01,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:29:01,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782497437] [2021-06-07 03:29:01,937 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782497437] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:29:01,937 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185064903] [2021-06-07 03:29:01,937 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 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 [2021-06-07 03:29:01,988 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-07 03:29:01,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:29:01,996 WARN L261 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 127 conjunts are in the unsatisfiable core [2021-06-07 03:29:01,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:29:05,466 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-06-07 03:29:05,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 140 treesize of output 92 [2021-06-07 03:29:05,470 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:29:05,489 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:29:05,490 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:29:05,490 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:192, output treesize:115 [2021-06-07 03:29:05,718 INFO L354 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2021-06-07 03:29:05,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 121 treesize of output 49 [2021-06-07 03:29:05,722 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:29:05,727 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:29:05,729 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:29:05,729 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:124, output treesize:20 [2021-06-07 03:29:05,953 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:29:05,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185064903] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:29:05,953 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:29:05,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 46] total 74 [2021-06-07 03:29:05,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537607734] [2021-06-07 03:29:05,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 75 states [2021-06-07 03:29:05,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:29:05,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-06-07 03:29:05,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=5299, Unknown=0, NotChecked=0, Total=5550 [2021-06-07 03:29:05,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:29:05,956 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:29:05,957 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 75 states, 75 states have (on average 1.8666666666666667) internal successors, (140), 74 states have internal predecessors, (140), 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) [2021-06-07 03:29:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:29:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:29:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:29:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:29:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:29:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:29:05,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:29:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:29:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:29:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:29:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:29:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:29:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:29:17,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:29:17,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:29:17,274 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:29:17,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:29:17,275 INFO L82 PathProgramCache]: Analyzing trace with hash -1713750713, now seen corresponding path program 7 times [2021-06-07 03:29:17,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:29:17,275 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118442476] [2021-06-07 03:29:17,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:29:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:29:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-06-07 03:29:17,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:29:17,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118442476] [2021-06-07 03:29:17,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118442476] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:29:17,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [694302222] [2021-06-07 03:29:17,463 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 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 [2021-06-07 03:29:17,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:29:17,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 52 conjunts are in the unsatisfiable core [2021-06-07 03:29:17,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:29:17,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:29:17,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-06-07 03:29:17,701 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:29:17,707 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:29:17,709 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:29:17,709 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:33, output treesize:14 [2021-06-07 03:29:17,758 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 [2021-06-07 03:29:17,759 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:29:17,760 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:29:17,760 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:29:17,760 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-07 03:29:17,770 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 0 proven. 129 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-06-07 03:29:17,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [694302222] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:29:17,771 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:29:17,771 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 13 [2021-06-07 03:29:17,771 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389591437] [2021-06-07 03:29:17,771 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-06-07 03:29:17,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:29:17,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-06-07 03:29:17,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-06-07 03:29:17,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:29:17,772 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:29:17,772 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 4.214285714285714) internal successors, (59), 13 states have internal predecessors, (59), 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) [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:29:17,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:29:18,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:29:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:29:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:29:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:29:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:29:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:29:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:29:18,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:29:18,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-07 03:29:18,301 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:29:18,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:29:18,301 INFO L82 PathProgramCache]: Analyzing trace with hash 267065290, now seen corresponding path program 8 times [2021-06-07 03:29:18,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:29:18,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165740861] [2021-06-07 03:29:18,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:29:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:29:19,547 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 3 proven. 162 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2021-06-07 03:29:19,547 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:29:19,547 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165740861] [2021-06-07 03:29:19,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165740861] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:29:19,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392669627] [2021-06-07 03:29:19,548 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 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 [2021-06-07 03:29:19,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:29:19,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:29:19,596 WARN L261 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 141 conjunts are in the unsatisfiable core [2021-06-07 03:29:19,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:29:22,857 INFO L354 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-06-07 03:29:22,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 184 treesize of output 108 [2021-06-07 03:29:22,861 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:29:22,879 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:29:22,880 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:29:22,880 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:230, output treesize:122 [2021-06-07 03:29:23,960 INFO L354 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size [2021-06-07 03:29:23,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 165 treesize of output 63 [2021-06-07 03:29:23,962 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:29:23,968 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:29:23,969 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:29:23,969 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:165, output treesize:25 [2021-06-07 03:29:24,164 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 254 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:29:24,164 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392669627] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:29:24,164 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:29:24,164 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 48] total 80 [2021-06-07 03:29:24,164 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81616949] [2021-06-07 03:29:24,165 INFO L462 AbstractCegarLoop]: Interpolant automaton has 81 states [2021-06-07 03:29:24,165 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:29:24,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-06-07 03:29:24,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=6235, Unknown=0, NotChecked=0, Total=6480 [2021-06-07 03:29:24,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:29:24,167 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:29:24,167 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 81 states, 81 states have (on average 1.9012345679012346) internal successors, (154), 80 states have internal predecessors, (154), 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) [2021-06-07 03:29:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:29:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:29:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:29:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:29:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:29:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:29:24,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:29:24,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:29:24,168 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:29:27,849 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2021-06-07 03:29:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:30,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:29:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:29:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:29:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:29:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:29:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:29:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:29:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:29:30,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:29:30,689 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-07 03:29:30,689 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:29:30,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:29:30,689 INFO L82 PathProgramCache]: Analyzing trace with hash 691166142, now seen corresponding path program 9 times [2021-06-07 03:29:30,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:29:30,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006816066] [2021-06-07 03:29:30,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:29:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:29:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 293 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-06-07 03:29:32,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:29:32,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006816066] [2021-06-07 03:29:32,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006816066] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:29:32,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007292406] [2021-06-07 03:29:32,459 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 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 [2021-06-07 03:29:32,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-06-07 03:29:32,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:29:32,530 WARN L261 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 181 conjunts are in the unsatisfiable core [2021-06-07 03:29:32,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:29:40,848 INFO L354 Elim1Store]: treesize reduction 416, result has 0.2 percent of original size [2021-06-07 03:29:40,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 257 treesize of output 161 [2021-06-07 03:29:40,851 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:29:40,877 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:29:40,878 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:29:40,878 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:347, output treesize:222 [2021-06-07 03:29:41,262 INFO L354 Elim1Store]: treesize reduction 416, result has 0.2 percent of original size [2021-06-07 03:29:41,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 228 treesize of output 80 [2021-06-07 03:29:41,265 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:29:41,271 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:29:41,271 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:29:41,271 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:231, output treesize:20 [2021-06-07 03:29:41,847 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 0 proven. 434 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:29:41,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007292406] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:29:41,847 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:29:41,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 68] total 107 [2021-06-07 03:29:41,848 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236241418] [2021-06-07 03:29:41,848 INFO L462 AbstractCegarLoop]: Interpolant automaton has 108 states [2021-06-07 03:29:41,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:29:41,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2021-06-07 03:29:41,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=11187, Unknown=0, NotChecked=0, Total=11556 [2021-06-07 03:29:41,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:29:41,851 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:29:41,851 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 108 states, 108 states have (on average 1.7592592592592593) internal successors, (190), 107 states have internal predecessors, (190), 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) [2021-06-07 03:29:41,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:41,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:29:41,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:41,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:29:41,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:29:41,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:29:41,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:29:41,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:29:41,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:29:41,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:29:41,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:29:41,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:29:41,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:29:41,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:29:52,165 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2021-06-07 03:29:55,664 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2021-06-07 03:29:57,206 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 71 [2021-06-07 03:29:58,541 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2021-06-07 03:29:59,234 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2021-06-07 03:30:00,241 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 82 [2021-06-07 03:30:00,676 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:30:01,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:30:01,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:30:01,905 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-07 03:30:01,905 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:30:01,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:30:01,905 INFO L82 PathProgramCache]: Analyzing trace with hash -2010678291, now seen corresponding path program 10 times [2021-06-07 03:30:01,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:30:01,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739281695] [2021-06-07 03:30:01,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:30:01,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:30:02,131 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 0 proven. 283 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-06-07 03:30:02,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:30:02,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739281695] [2021-06-07 03:30:02,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739281695] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:30:02,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259838437] [2021-06-07 03:30:02,131 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 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 [2021-06-07 03:30:02,222 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 03:30:02,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:30:02,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 76 conjunts are in the unsatisfiable core [2021-06-07 03:30:02,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:30:02,462 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:30:02,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-06-07 03:30:02,464 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:30:02,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:30:02,471 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:30:02,471 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:31, output treesize:14 [2021-06-07 03:30:02,528 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 [2021-06-07 03:30:02,529 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:30:02,530 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:30:02,530 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:30:02,530 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-07 03:30:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 0 proven. 283 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-06-07 03:30:02,542 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259838437] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:30:02,542 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:30:02,542 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 16 [2021-06-07 03:30:02,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412927307] [2021-06-07 03:30:02,542 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-07 03:30:02,542 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:30:02,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-07 03:30:02,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2021-06-07 03:30:02,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:30:02,543 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:30:02,543 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 4.176470588235294) internal successors, (71), 16 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:30:02,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:30:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:03,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:30:03,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:30:03,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:30:03,237 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:30:03,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:30:03,240 INFO L82 PathProgramCache]: Analyzing trace with hash -2104716432, now seen corresponding path program 11 times [2021-06-07 03:30:03,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:30:03,240 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448452600] [2021-06-07 03:30:03,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:30:03,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:30:04,924 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 5 proven. 332 refuted. 0 times theorem prover too weak. 205 trivial. 0 not checked. [2021-06-07 03:30:04,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:30:04,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448452600] [2021-06-07 03:30:04,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448452600] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:30:04,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801083226] [2021-06-07 03:30:04,924 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 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 [2021-06-07 03:30:04,987 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-06-07 03:30:04,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:30:04,991 WARN L261 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 201 conjunts are in the unsatisfiable core [2021-06-07 03:30:04,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:30:13,436 INFO L354 Elim1Store]: treesize reduction 522, result has 0.2 percent of original size [2021-06-07 03:30:13,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 276 treesize of output 168 [2021-06-07 03:30:13,439 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:30:13,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:30:13,532 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:30:13,532 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:347, output treesize:204 [2021-06-07 03:30:16,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,690 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:30:16,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,712 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:30:16,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,717 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:30:16,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:30:16,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,736 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:30:16,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,738 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:30:16,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,744 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:30:16,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,750 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:30:16,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:30:16,752 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:30:16,754 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:30:16,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 45 disjoint index pairs (out of 190 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 84 [2021-06-07 03:30:16,759 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:30:16,767 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:30:16,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:30:16,769 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:254, output treesize:25 [2021-06-07 03:30:17,076 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:30:17,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801083226] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:30:17,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:30:17,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 66] total 107 [2021-06-07 03:30:17,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820674929] [2021-06-07 03:30:17,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 108 states [2021-06-07 03:30:17,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:30:17,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2021-06-07 03:30:17,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=11233, Unknown=0, NotChecked=0, Total=11556 [2021-06-07 03:30:17,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:30:17,079 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:30:17,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 108 states, 108 states have (on average 1.8703703703703705) internal successors, (202), 107 states have internal predecessors, (202), 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) [2021-06-07 03:30:17,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:17,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:30:17,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:17,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:17,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:17,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:30:17,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:30:17,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:30:17,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:30:17,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:30:17,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:30:17,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:30:17,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:30:17,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:30:17,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:30:17,080 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:30:24,321 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 71 [2021-06-07 03:30:25,311 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2021-06-07 03:30:26,016 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2021-06-07 03:30:27,271 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2021-06-07 03:30:27,987 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2021-06-07 03:30:28,503 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2021-06-07 03:30:29,319 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 117 [2021-06-07 03:30:30,089 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2021-06-07 03:30:30,369 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97 [2021-06-07 03:30:30,915 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2021-06-07 03:30:32,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:32,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:30:32,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:30:32,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:30:32,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-06-07 03:30:32,277 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:30:32,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:30:32,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1314741250, now seen corresponding path program 12 times [2021-06-07 03:30:32,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:30:32,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673110312] [2021-06-07 03:30:32,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:30:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:30:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 513 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2021-06-07 03:30:34,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:30:34,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673110312] [2021-06-07 03:30:34,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673110312] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:30:34,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614881266] [2021-06-07 03:30:34,882 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 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 [2021-06-07 03:30:34,956 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-06-07 03:30:34,957 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:30:34,960 WARN L261 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 227 conjunts are in the unsatisfiable core [2021-06-07 03:30:34,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:30:38,398 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2021-06-07 03:30:39,943 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2021-06-07 03:30:41,069 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2021-06-07 03:30:41,934 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2021-06-07 03:30:46,440 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-06-07 03:30:47,884 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-06-07 03:30:48,251 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-06-07 03:30:48,663 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-06-07 03:30:49,088 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-06-07 03:30:49,619 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 131 [2021-06-07 03:30:50,039 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-06-07 03:30:50,478 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2021-06-07 03:30:50,938 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-06-07 03:30:51,370 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-06-07 03:30:52,017 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 141 [2021-06-07 03:30:52,489 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2021-06-07 03:30:52,960 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-07 03:30:53,426 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-07 03:30:54,068 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 145 [2021-06-07 03:30:54,677 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 134 [2021-06-07 03:30:55,207 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-06-07 03:30:55,741 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-06-07 03:30:56,510 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 145 [2021-06-07 03:30:57,089 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-07 03:30:57,616 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-07 03:30:57,644 INFO L354 Elim1Store]: treesize reduction 770, result has 0.1 percent of original size [2021-06-07 03:30:57,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 552 treesize of output 336 [2021-06-07 03:30:57,657 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:30:57,711 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:30:57,713 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:30:57,713 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:792, output treesize:498 [2021-06-07 03:30:58,441 INFO L354 Elim1Store]: treesize reduction 770, result has 0.1 percent of original size [2021-06-07 03:30:58,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 504 treesize of output 156 [2021-06-07 03:30:58,452 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:30:58,463 INFO L628 ElimStorePlain]: treesize reduction 5, result has 82.8 percent of original size [2021-06-07 03:30:58,464 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:30:58,464 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:507, output treesize:24 [2021-06-07 03:30:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 794 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:30:59,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614881266] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:30:59,031 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:30:59,031 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 92] total 143 [2021-06-07 03:30:59,032 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963427855] [2021-06-07 03:30:59,032 INFO L462 AbstractCegarLoop]: Interpolant automaton has 144 states [2021-06-07 03:30:59,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:30:59,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 144 interpolants. [2021-06-07 03:30:59,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=506, Invalid=20086, Unknown=0, NotChecked=0, Total=20592 [2021-06-07 03:30:59,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:30:59,035 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:30:59,036 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 144 states, 144 states have (on average 1.6527777777777777) internal successors, (238), 143 states have internal predecessors, (238), 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) [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:30:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:31:18,477 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2021-06-07 03:31:19,235 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2021-06-07 03:31:20,249 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2021-06-07 03:31:20,591 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2021-06-07 03:31:20,880 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2021-06-07 03:31:21,350 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2021-06-07 03:31:21,636 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2021-06-07 03:31:22,856 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2021-06-07 03:31:23,675 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2021-06-07 03:31:24,141 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2021-06-07 03:31:24,586 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-06-07 03:31:24,942 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2021-06-07 03:31:25,271 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2021-06-07 03:31:25,757 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-06-07 03:31:26,306 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-06-07 03:31:26,882 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2021-06-07 03:31:27,247 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2021-06-07 03:31:27,569 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2021-06-07 03:31:28,042 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86 [2021-06-07 03:31:28,374 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2021-06-07 03:31:28,936 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2021-06-07 03:31:29,266 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2021-06-07 03:31:29,735 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2021-06-07 03:31:30,067 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2021-06-07 03:31:30,647 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2021-06-07 03:31:31,168 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2021-06-07 03:31:31,673 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2021-06-07 03:31:32,047 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 92 [2021-06-07 03:31:32,429 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 90 [2021-06-07 03:31:32,929 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2021-06-07 03:31:33,525 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2021-06-07 03:31:34,116 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2021-06-07 03:31:34,538 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2021-06-07 03:31:35,251 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 96 [2021-06-07 03:31:36,453 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2021-06-07 03:31:37,036 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100 [2021-06-07 03:31:37,628 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 99 [2021-06-07 03:31:38,047 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2021-06-07 03:31:38,468 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-06-07 03:31:39,040 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2021-06-07 03:31:39,703 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 103 [2021-06-07 03:31:40,352 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 104 [2021-06-07 03:31:41,543 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2021-06-07 03:31:41,973 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 109 [2021-06-07 03:31:42,552 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2021-06-07 03:31:42,987 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 112 [2021-06-07 03:31:43,439 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 111 [2021-06-07 03:31:44,275 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 114 [2021-06-07 03:31:44,844 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 116 [2021-06-07 03:31:45,537 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 113 [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:31:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:31:48,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:31:48,974 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:31:48,975 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:31:48,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:31:48,975 INFO L82 PathProgramCache]: Analyzing trace with hash -641934573, now seen corresponding path program 13 times [2021-06-07 03:31:48,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:31:48,975 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904130328] [2021-06-07 03:31:48,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:31:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:31:49,275 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-06-07 03:31:49,275 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:31:49,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904130328] [2021-06-07 03:31:49,275 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904130328] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:31:49,275 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967777963] [2021-06-07 03:31:49,275 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:31:49,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:31:49,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 100 conjunts are in the unsatisfiable core [2021-06-07 03:31:49,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:31:49,645 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 [2021-06-07 03:31:49,645 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:31:49,649 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:31:49,649 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:31:49,650 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:14 [2021-06-07 03:31:49,715 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 [2021-06-07 03:31:49,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:31:49,718 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:31:49,718 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:31:49,718 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-07 03:31:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 889 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-06-07 03:31:49,727 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967777963] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:31:49,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:31:49,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16] total 19 [2021-06-07 03:31:49,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443013834] [2021-06-07 03:31:49,728 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-07 03:31:49,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:31:49,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-07 03:31:49,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2021-06-07 03:31:49,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:31:49,728 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:31:49,728 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 4.15) internal successors, (83), 19 states have internal predecessors, (83), 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) [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:31:49,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:31:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:31:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:31:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:31:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:31:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:31:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:31:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:31:50,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:31:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:31:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:31:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:31:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:31:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:31:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:31:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:31:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:31:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:31:50,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:31:50,514 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-06-07 03:31:50,515 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:31:50,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:31:50,515 INFO L82 PathProgramCache]: Analyzing trace with hash 1047654294, now seen corresponding path program 14 times [2021-06-07 03:31:50,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:31:50,515 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197488558] [2021-06-07 03:31:50,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:31:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:31:52,811 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 7 proven. 562 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2021-06-07 03:31:52,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:31:52,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197488558] [2021-06-07 03:31:52,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197488558] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:31:52,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951801230] [2021-06-07 03:31:52,812 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 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:31:52,878 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:31:52,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:31:52,895 WARN L261 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 261 conjunts are in the unsatisfiable core [2021-06-07 03:31:52,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:32:05,650 INFO L354 Elim1Store]: treesize reduction 912, result has 0.1 percent of original size [2021-06-07 03:32:05,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 364 treesize of output 224 [2021-06-07 03:32:05,655 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:32:05,687 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:32:05,688 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:32:05,688 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:450, output treesize:274 [2021-06-07 03:32:09,274 INFO L354 Elim1Store]: treesize reduction 912, result has 0.1 percent of original size [2021-06-07 03:32:09,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 337 treesize of output 107 [2021-06-07 03:32:09,277 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:32:09,284 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:32:09,284 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:32:09,284 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:337, output treesize:25 [2021-06-07 03:32:09,628 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 0 proven. 938 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:32:09,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951801230] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:32:09,628 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:32:09,628 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 84] total 134 [2021-06-07 03:32:09,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997467700] [2021-06-07 03:32:09,629 INFO L462 AbstractCegarLoop]: Interpolant automaton has 135 states [2021-06-07 03:32:09,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:32:09,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2021-06-07 03:32:09,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=17655, Unknown=0, NotChecked=0, Total=18090 [2021-06-07 03:32:09,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:32:09,631 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:32:09,632 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 135 states, 135 states have (on average 1.8518518518518519) internal successors, (250), 134 states have internal predecessors, (250), 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) [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:32:09,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:32:16,856 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2021-06-07 03:32:19,004 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2021-06-07 03:32:21,321 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2021-06-07 03:32:23,694 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116 [2021-06-07 03:32:24,596 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2021-06-07 03:32:25,151 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2021-06-07 03:32:25,535 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2021-06-07 03:32:26,126 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 128 [2021-06-07 03:32:26,577 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2021-06-07 03:32:27,084 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2021-06-07 03:32:27,370 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2021-06-07 03:32:27,703 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2021-06-07 03:32:28,124 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2021-06-07 03:32:28,766 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 134 [2021-06-07 03:32:29,218 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2021-06-07 03:32:29,768 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 102 [2021-06-07 03:32:30,072 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 100 [2021-06-07 03:32:30,817 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2021-06-07 03:32:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:32:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:32:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:32:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:32:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:32:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:32:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:32:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:32:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:32:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:32:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:32:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:32:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:32:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:32:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:32:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:32:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:32:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:32:33,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:32:33,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-06-07 03:32:33,415 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:32:33,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:32:33,415 INFO L82 PathProgramCache]: Analyzing trace with hash 1777446846, now seen corresponding path program 15 times [2021-06-07 03:32:33,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:32:33,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315748590] [2021-06-07 03:32:33,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:32:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:32:36,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 0 proven. 793 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2021-06-07 03:32:36,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:32:36,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315748590] [2021-06-07 03:32:36,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315748590] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:32:36,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [210306091] [2021-06-07 03:32:36,830 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 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:32:36,936 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2021-06-07 03:32:36,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:32:36,941 WARN L261 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 284 conjunts are in the unsatisfiable core [2021-06-07 03:32:36,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:32:42,074 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2021-06-07 03:32:44,066 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 90 [2021-06-07 03:32:45,492 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-06-07 03:32:46,560 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2021-06-07 03:32:48,320 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 107 [2021-06-07 03:32:49,575 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2021-06-07 03:32:50,843 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-06-07 03:32:51,234 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-06-07 03:32:52,145 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-06-07 03:32:53,048 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2021-06-07 03:32:53,573 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2021-06-07 03:32:54,016 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2021-06-07 03:32:54,470 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-06-07 03:32:54,890 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2021-06-07 03:32:55,390 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-06-07 03:32:55,845 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-06-07 03:32:56,439 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 135 [2021-06-07 03:32:56,900 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-07 03:32:57,408 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2021-06-07 03:32:57,899 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-06-07 03:32:58,426 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2021-06-07 03:32:58,958 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-06-07 03:32:59,526 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2021-06-07 03:33:00,088 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-06-07 03:33:00,649 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-06-07 03:33:01,208 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-06-07 03:33:01,807 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-06-07 03:33:02,409 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-06-07 03:33:03,004 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2021-06-07 03:33:03,635 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-06-07 03:33:04,268 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-06-07 03:33:04,937 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-07 03:33:05,588 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-07 03:33:06,487 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 175 [2021-06-07 03:33:07,329 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 166 [2021-06-07 03:33:07,986 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-06-07 03:33:08,637 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-06-07 03:33:09,555 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 173 [2021-06-07 03:33:10,246 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-06-07 03:33:10,944 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2021-06-07 03:33:11,689 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-07 03:33:12,539 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-06-07 03:33:13,400 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-06-07 03:33:14,189 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-06-07 03:33:14,223 INFO L354 Elim1Store]: treesize reduction 1232, result has 0.1 percent of original size [2021-06-07 03:33:14,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 720 treesize of output 424 [2021-06-07 03:33:14,234 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:33:14,304 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:33:14,306 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:33:14,306 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:1145, output treesize:732 [2021-06-07 03:33:15,332 INFO L354 Elim1Store]: treesize reduction 1232, result has 0.1 percent of original size [2021-06-07 03:33:15,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 738 treesize of output 214 [2021-06-07 03:33:15,344 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:33:15,356 INFO L628 ElimStorePlain]: treesize reduction 5, result has 82.8 percent of original size [2021-06-07 03:33:15,356 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:33:15,356 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:741, output treesize:24 [2021-06-07 03:33:16,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1262 backedges. 0 proven. 1262 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:33:16,621 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [210306091] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:33:16,621 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:33:16,621 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 114] total 174 [2021-06-07 03:33:16,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877895705] [2021-06-07 03:33:16,621 INFO L462 AbstractCegarLoop]: Interpolant automaton has 175 states [2021-06-07 03:33:16,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:33:16,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 175 interpolants. [2021-06-07 03:33:16,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=612, Invalid=29838, Unknown=0, NotChecked=0, Total=30450 [2021-06-07 03:33:16,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:33:16,623 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:33:16,623 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 175 states, 175 states have (on average 1.6342857142857143) internal successors, (286), 174 states have internal predecessors, (286), 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) [2021-06-07 03:33:16,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:33:16,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:33:16,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:33:16,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:33:16,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:33:16,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:33:16,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:33:16,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:33:16,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:33:16,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:33:16,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:33:16,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:33:16,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:33:16,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:33:16,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:33:16,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:33:16,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:33:16,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:33:16,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:33:16,624 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:33:44,132 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2021-06-07 03:33:44,992 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2021-06-07 03:33:45,344 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2021-06-07 03:33:46,822 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2021-06-07 03:33:47,840 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-06-07 03:33:48,450 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2021-06-07 03:33:49,012 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 77 [2021-06-07 03:33:49,433 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2021-06-07 03:33:49,830 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2021-06-07 03:33:50,426 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2021-06-07 03:33:51,178 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2021-06-07 03:33:51,938 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2021-06-07 03:33:52,377 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2021-06-07 03:33:52,793 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2021-06-07 03:33:53,414 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2021-06-07 03:33:53,811 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2021-06-07 03:33:54,483 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2021-06-07 03:33:54,923 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2021-06-07 03:33:55,478 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2021-06-07 03:33:55,843 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2021-06-07 03:33:56,597 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2021-06-07 03:33:57,312 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2021-06-07 03:33:57,973 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 94 [2021-06-07 03:33:58,439 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2021-06-07 03:33:58,887 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 88 [2021-06-07 03:33:59,575 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2021-06-07 03:34:00,404 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2021-06-07 03:34:01,165 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2021-06-07 03:34:01,653 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 96 [2021-06-07 03:34:02,068 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 103 [2021-06-07 03:34:02,714 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 97 [2021-06-07 03:34:03,142 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 104 [2021-06-07 03:34:03,901 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99 [2021-06-07 03:34:04,350 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98 [2021-06-07 03:34:04,974 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2021-06-07 03:34:05,420 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2021-06-07 03:34:06,201 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2021-06-07 03:34:06,960 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 100 [2021-06-07 03:34:07,751 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 109 [2021-06-07 03:34:08,246 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 104 [2021-06-07 03:34:08,736 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 102 [2021-06-07 03:34:09,450 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2021-06-07 03:34:10,321 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 106 [2021-06-07 03:34:11,194 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 107 [2021-06-07 03:34:11,754 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 108 [2021-06-07 03:34:12,239 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2021-06-07 03:34:12,964 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 109 [2021-06-07 03:34:13,463 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 114 [2021-06-07 03:34:14,290 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 111 [2021-06-07 03:34:14,783 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 110 [2021-06-07 03:34:15,444 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 118 [2021-06-07 03:34:15,900 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2021-06-07 03:34:16,776 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 111 [2021-06-07 03:34:17,604 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 112 [2021-06-07 03:34:18,464 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 125 [2021-06-07 03:34:19,017 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 116 [2021-06-07 03:34:19,596 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 114 [2021-06-07 03:34:20,413 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 111 [2021-06-07 03:34:21,356 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2021-06-07 03:34:22,378 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 111 [2021-06-07 03:34:23,000 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 111 [2021-06-07 03:34:24,118 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 112 [2021-06-07 03:34:25,887 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 124 [2021-06-07 03:34:26,830 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 125 [2021-06-07 03:34:27,821 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 137 [2021-06-07 03:34:28,429 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 123 [2021-06-07 03:34:29,035 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 125 [2021-06-07 03:34:29,847 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 122 [2021-06-07 03:34:30,862 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 123 [2021-06-07 03:34:31,842 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2021-06-07 03:34:33,683 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 133 [2021-06-07 03:34:34,319 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 134 [2021-06-07 03:34:35,179 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 128 [2021-06-07 03:34:35,862 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 135 [2021-06-07 03:34:36,533 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 135 [2021-06-07 03:34:37,846 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 134 [2021-06-07 03:34:38,664 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 137 [2021-06-07 03:34:39,792 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 134 [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:34:45,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:34:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2021-06-07 03:34:45,897 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-06-07 03:34:45,897 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:34:45,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:34:45,898 INFO L82 PathProgramCache]: Analyzing trace with hash -799221063, now seen corresponding path program 16 times [2021-06-07 03:34:45,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:34:45,898 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660161853] [2021-06-07 03:34:45,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:34:45,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:34:46,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2021-06-07 03:34:46,269 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:34:46,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660161853] [2021-06-07 03:34:46,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660161853] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:34:46,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122566270] [2021-06-07 03:34:46,269 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 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:34:46,353 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-07 03:34:46,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:34:46,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 124 conjunts are in the unsatisfiable core [2021-06-07 03:34:46,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:34:46,752 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:34:46,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-06-07 03:34:46,754 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:34:46,759 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:34:46,761 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:34:46,761 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:33, output treesize:14 [2021-06-07 03:34:46,838 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 [2021-06-07 03:34:46,839 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:34:46,840 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:34:46,841 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:34:46,841 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-07 03:34:46,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1381 backedges. 0 proven. 771 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2021-06-07 03:34:46,850 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122566270] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:34:46,850 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:34:46,850 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19] total 22 [2021-06-07 03:34:46,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093602782] [2021-06-07 03:34:46,851 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-07 03:34:46,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:34:46,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-07 03:34:46,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=460, Unknown=0, NotChecked=0, Total=506 [2021-06-07 03:34:46,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:34:46,851 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:34:46,851 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 4.130434782608695) internal successors, (95), 22 states have internal predecessors, (95), 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) [2021-06-07 03:34:46,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:34:46,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:34:46,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:34:46,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:34:46,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2021-06-07 03:34:46,852 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:34:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:34:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:34:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:34:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:34:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:34:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:34:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:34:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:34:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:34:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:34:47,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:34:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:34:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:34:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:34:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:34:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:34:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:34:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:34:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:34:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2021-06-07 03:34:47,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:34:47,888 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-06-07 03:34:47,889 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:34:47,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:34:47,889 INFO L82 PathProgramCache]: Analyzing trace with hash -534926276, now seen corresponding path program 17 times [2021-06-07 03:34:47,889 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:34:47,889 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372946550] [2021-06-07 03:34:47,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:34:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:34:50,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1442 backedges. 9 proven. 852 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-06-07 03:34:50,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:34:50,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372946550] [2021-06-07 03:34:50,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372946550] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:34:50,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867295313] [2021-06-07 03:34:50,891 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 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:34:50,999 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2021-06-07 03:34:51,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:34:51,004 WARN L261 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 325 conjunts are in the unsatisfiable core [2021-06-07 03:34:51,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:35:06,871 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-06-07 03:35:08,452 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-06-07 03:35:08,869 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-06-07 03:35:09,312 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-06-07 03:35:09,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 388 treesize of output 232 [2021-06-07 03:35:09,316 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:35:09,355 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:35:09,356 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:35:09,356 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:446, output treesize:281 [2021-06-07 03:35:15,224 INFO L354 Elim1Store]: treesize reduction 1410, result has 0.1 percent of original size [2021-06-07 03:35:15,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 376 treesize of output 116 [2021-06-07 03:35:15,227 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:35:15,233 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:35:15,233 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:35:15,233 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:376, output treesize:27 [2021-06-07 03:35:15,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1442 backedges. 0 proven. 1442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:35:15,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867295313] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:15,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:35:15,650 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 102] total 161 [2021-06-07 03:35:15,650 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779686920] [2021-06-07 03:35:15,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 162 states [2021-06-07 03:35:15,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:35:15,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 162 interpolants. [2021-06-07 03:35:15,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=502, Invalid=25580, Unknown=0, NotChecked=0, Total=26082 [2021-06-07 03:35:15,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:15,652 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:35:15,652 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 162 states, 162 states have (on average 1.8395061728395061) internal successors, (298), 161 states have internal predecessors, (298), 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) [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:35:15,653 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:35:18,055 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2021-06-07 03:35:19,967 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2021-06-07 03:35:21,998 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2021-06-07 03:35:24,081 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2021-06-07 03:35:26,164 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2021-06-07 03:35:28,363 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 124 [2021-06-07 03:35:30,147 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2021-06-07 03:35:30,776 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 132 [2021-06-07 03:35:31,637 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2021-06-07 03:35:31,897 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2021-06-07 03:35:32,202 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2021-06-07 03:35:32,589 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2021-06-07 03:35:33,188 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 143 [2021-06-07 03:35:33,616 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2021-06-07 03:35:34,101 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2021-06-07 03:35:34,371 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2021-06-07 03:35:34,690 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 97 [2021-06-07 03:35:35,079 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2021-06-07 03:35:35,707 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 146 [2021-06-07 03:35:36,147 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2021-06-07 03:35:36,648 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 103 [2021-06-07 03:35:37,016 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103 [2021-06-07 03:35:37,383 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 108 [2021-06-07 03:35:37,794 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2021-06-07 03:35:38,434 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 159 [2021-06-07 03:35:38,890 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 112 [2021-06-07 03:35:39,421 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 118 [2021-06-07 03:35:39,728 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 112 [2021-06-07 03:35:40,476 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2021-06-07 03:35:43,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:35:43,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:35:43,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:35:43,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2021-06-07 03:35:43,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:35:43,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-06-07 03:35:43,287 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-06-07 03:35:43,288 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:35:43,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:35:43,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1817739006, now seen corresponding path program 18 times [2021-06-07 03:35:43,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:35:43,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202718654] [2021-06-07 03:35:43,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:35:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:35:47,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1838 backedges. 0 proven. 1133 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2021-06-07 03:35:47,684 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:35:47,684 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202718654] [2021-06-07 03:35:47,685 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202718654] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:35:47,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243164844] [2021-06-07 03:35:47,685 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 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:35:47,817 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2021-06-07 03:35:47,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:35:47,822 WARN L261 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 364 conjunts are in the unsatisfiable core [2021-06-07 03:35:47,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:35:54,213 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2021-06-07 03:35:56,409 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91 [2021-06-07 03:36:04,924 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2021-06-07 03:36:06,717 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2021-06-07 03:36:08,049 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2021-06-07 03:36:08,475 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-06-07 03:36:08,939 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-06-07 03:36:09,374 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2021-06-07 03:36:09,859 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2021-06-07 03:36:10,328 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-06-07 03:36:10,797 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-06-07 03:36:11,268 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-06-07 03:36:11,791 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2021-06-07 03:36:12,291 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-06-07 03:36:12,810 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2021-06-07 03:36:13,311 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2021-06-07 03:36:13,850 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-06-07 03:36:14,382 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-06-07 03:36:14,919 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2021-06-07 03:36:15,457 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2021-06-07 03:36:16,024 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-06-07 03:36:16,690 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2021-06-07 03:36:17,338 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-06-07 03:36:18,011 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2021-06-07 03:36:18,702 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-07 03:36:19,425 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-06-07 03:36:20,130 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-06-07 03:36:20,873 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2021-06-07 03:36:21,586 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-06-07 03:36:22,363 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-06-07 03:36:23,082 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-06-07 03:36:23,814 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-06-07 03:36:24,543 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2021-06-07 03:36:27,523 INFO L354 Elim1Store]: treesize reduction 1802, result has 0.1 percent of original size [2021-06-07 03:36:27,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 525 treesize of output 333 [2021-06-07 03:36:27,531 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:36:27,593 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:36:27,596 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-06-07 03:36:27,596 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:720, output treesize:448 [2021-06-07 03:36:28,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,773 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-07 03:36:28,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-07 03:36:28,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 153 disjoint index pairs (out of 171 index pairs), introduced 18 new quantified variables, introduced 0 case distinctions, treesize of input 447 treesize of output 141 [2021-06-07 03:36:28,804 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:36:28,825 INFO L628 ElimStorePlain]: treesize reduction 5, result has 87.5 percent of original size [2021-06-07 03:36:28,827 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:36:28,827 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:465, output treesize:20 [2021-06-07 03:36:29,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1838 backedges. 0 proven. 1838 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:36:29,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1243164844] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:36:29,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:36:29,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 122] total 191 [2021-06-07 03:36:29,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781780478] [2021-06-07 03:36:29,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 192 states [2021-06-07 03:36:29,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:36:29,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-06-07 03:36:29,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=784, Invalid=35888, Unknown=0, NotChecked=0, Total=36672 [2021-06-07 03:36:29,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:36:29,656 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:36:29,657 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 192 states, 192 states have (on average 1.7395833333333333) internal successors, (334), 191 states have internal predecessors, (334), 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) [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-06-07 03:36:29,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:36:53,465 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2021-06-07 03:36:53,814 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2021-06-07 03:36:55,822 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-07 03:36:56,228 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-06-07 03:36:56,576 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2021-06-07 03:36:57,149 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2021-06-07 03:36:57,518 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2021-06-07 03:36:58,492 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2021-06-07 03:36:58,931 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-06-07 03:36:59,819 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-06-07 03:37:00,419 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-06-07 03:37:01,006 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 76 [2021-06-07 03:37:01,432 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2021-06-07 03:37:01,829 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-06-07 03:37:02,370 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2021-06-07 03:37:03,034 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2021-06-07 03:37:03,699 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2021-06-07 03:37:04,146 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2021-06-07 03:37:04,519 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2021-06-07 03:37:05,116 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 87 [2021-06-07 03:37:05,541 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2021-06-07 03:37:06,196 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2021-06-07 03:37:06,595 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 85 [2021-06-07 03:37:07,194 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2021-06-07 03:37:07,583 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2021-06-07 03:37:08,246 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2021-06-07 03:37:08,882 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2021-06-07 03:37:09,555 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 94 [2021-06-07 03:37:10,003 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2021-06-07 03:37:10,427 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2021-06-07 03:37:10,986 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2021-06-07 03:37:11,705 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2021-06-07 03:37:12,395 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 94 [2021-06-07 03:37:12,888 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 94 [2021-06-07 03:37:13,661 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 95 [2021-06-07 03:37:14,709 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2021-06-07 03:37:15,388 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 100 [2021-06-07 03:37:16,083 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 99 [2021-06-07 03:37:16,534 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2021-06-07 03:37:16,987 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 97 [2021-06-07 03:37:17,590 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 97 [2021-06-07 03:37:18,288 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2021-06-07 03:37:18,966 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 102 [2021-06-07 03:37:20,256 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 101 [2021-06-07 03:37:20,746 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 102 [2021-06-07 03:37:21,381 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 104 [2021-06-07 03:37:21,879 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2021-06-07 03:37:22,376 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 108 [2021-06-07 03:37:22,999 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 105 [2021-06-07 03:37:23,735 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 109 [2021-06-07 03:37:24,453 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 110 [2021-06-07 03:37:25,756 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 111 [2021-06-07 03:37:26,244 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 112 [2021-06-07 03:37:26,925 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 114 [2021-06-07 03:37:27,413 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2021-06-07 03:37:27,934 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 113 [2021-06-07 03:37:28,565 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 113 [2021-06-07 03:37:29,284 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 117 [2021-06-07 03:37:30,027 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 118 [2021-06-07 03:37:31,339 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 123 [2021-06-07 03:37:31,894 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 124 [2021-06-07 03:37:32,573 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 120 [2021-06-07 03:37:33,102 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 125 [2021-06-07 03:37:33,667 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 125 [2021-06-07 03:37:34,387 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 123 [2021-06-07 03:37:35,165 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 125 [2021-06-07 03:37:35,964 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 126 [2021-06-07 03:37:37,284 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 130 [2021-06-07 03:37:37,868 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 131 [2021-06-07 03:37:38,640 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 128 [2021-06-07 03:37:39,218 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 133 [2021-06-07 03:37:39,822 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2021-06-07 03:37:41,048 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 133 [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:37:45,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2021-06-07 03:37:45,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:37:45,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-06-07 03:37:45,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2021-06-07 03:37:46,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:37:46,044 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:37:46,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:37:46,045 INFO L82 PathProgramCache]: Analyzing trace with hash -731252001, now seen corresponding path program 19 times [2021-06-07 03:37:46,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:37:46,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464980786] [2021-06-07 03:37:46,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:37:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:37:46,533 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 0 proven. 1105 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2021-06-07 03:37:46,533 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:37:46,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464980786] [2021-06-07 03:37:46,533 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464980786] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:37:46,533 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388647808] [2021-06-07 03:37:46,533 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 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:37:46,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:37:46,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 148 conjunts are in the unsatisfiable core [2021-06-07 03:37:46,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:37:47,046 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 [2021-06-07 03:37:47,046 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:37:47,050 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:37:47,050 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:37:47,050 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:21, output treesize:14 [2021-06-07 03:37:47,133 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 [2021-06-07 03:37:47,133 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:37:47,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:37:47,135 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:37:47,135 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:11, output treesize:3 [2021-06-07 03:37:47,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1981 backedges. 0 proven. 1105 refuted. 0 times theorem prover too weak. 876 trivial. 0 not checked. [2021-06-07 03:37:47,145 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388647808] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:37:47,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:37:47,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 22] total 25 [2021-06-07 03:37:47,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445340992] [2021-06-07 03:37:47,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-07 03:37:47,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:37:47,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-07 03:37:47,145 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=598, Unknown=0, NotChecked=0, Total=650 [2021-06-07 03:37:47,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:37:47,146 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:37:47,146 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 4.115384615384615) internal successors, (107), 25 states have internal predecessors, (107), 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) [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2021-06-07 03:37:47,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:37:48,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:37:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:37:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:37:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:37:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:37:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:37:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2021-06-07 03:37:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:37:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 117 states. [2021-06-07 03:37:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 178 states. [2021-06-07 03:37:48,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-06-07 03:37:48,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2021-06-07 03:37:48,415 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-07 03:37:48,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-07 03:37:48,415 INFO L82 PathProgramCache]: Analyzing trace with hash -625850014, now seen corresponding path program 20 times [2021-06-07 03:37:48,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-07 03:37:48,415 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556341828] [2021-06-07 03:37:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-07 03:37:48,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-07 03:37:52,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2054 backedges. 11 proven. 1202 refuted. 0 times theorem prover too weak. 841 trivial. 0 not checked. [2021-06-07 03:37:52,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-07 03:37:52,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556341828] [2021-06-07 03:37:52,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556341828] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:37:52,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2056638854] [2021-06-07 03:37:52,226 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 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:37:52,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-07 03:37:52,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-07 03:37:52,335 WARN L261 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 381 conjunts are in the unsatisfiable core [2021-06-07 03:37:52,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-07 03:38:15,625 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2021-06-07 03:38:16,121 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2021-06-07 03:38:16,631 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2021-06-07 03:38:17,143 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2021-06-07 03:38:17,686 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2021-06-07 03:38:18,224 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2021-06-07 03:38:18,764 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2021-06-07 03:38:19,312 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2021-06-07 03:38:19,883 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2021-06-07 03:38:20,460 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 161 [2021-06-07 03:38:21,019 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2021-06-07 03:38:21,621 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2021-06-07 03:38:22,235 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2021-06-07 03:38:22,852 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2021-06-07 03:38:23,493 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2021-06-07 03:38:24,099 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2021-06-07 03:38:24,147 INFO L354 Elim1Store]: treesize reduction 2016, result has 0.0 percent of original size [2021-06-07 03:38:24,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 0 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 171 case distinctions, treesize of input 540 treesize of output 296 [2021-06-07 03:38:24,152 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:38:24,202 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:38:24,203 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:38:24,203 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:666, output treesize:346 [2021-06-07 03:38:31,962 INFO L354 Elim1Store]: treesize reduction 2016, result has 0.0 percent of original size [2021-06-07 03:38:31,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 19 select indices, 19 select index equivalence classes, 0 disjoint index pairs (out of 171 index pairs), introduced 19 new quantified variables, introduced 171 case distinctions, treesize of input 429 treesize of output 135 [2021-06-07 03:38:31,965 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-07 03:38:31,971 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-07 03:38:31,972 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-07 03:38:31,972 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:429, output treesize:25 [2021-06-07 03:38:32,503 INFO L134 CoverageAnalysis]: Checked inductivity of 2054 backedges. 0 proven. 2054 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-07 03:38:32,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2056638854] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-07 03:38:32,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-07 03:38:32,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 120] total 188 [2021-06-07 03:38:32,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789893038] [2021-06-07 03:38:32,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 189 states [2021-06-07 03:38:32,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-07 03:38:32,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 189 interpolants. [2021-06-07 03:38:32,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=625, Invalid=34907, Unknown=0, NotChecked=0, Total=35532 [2021-06-07 03:38:32,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:38:32,505 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-07 03:38:32,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 189 states, 189 states have (on average 1.8306878306878307) internal successors, (346), 188 states have internal predecessors, (346), 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) [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 156 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 117 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 178 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-06-07 03:38:32,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-07 03:38:32,960 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-06-07 03:38:35,623 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2021-06-07 03:38:41,816 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2021-06-07 03:38:44,613 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 123 [2021-06-07 03:38:46,382 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new [2021-06-07 03:38:46,583 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-07 03:38:46,584 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkValidity(IncrementalHoareTripleChecker.java:676) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:143) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ProtectiveHoareTripleChecker.checkInternal(ProtectiveHoareTripleChecker.java:61) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.EfficientHoareTripleChecker.checkInternal(EfficientHoareTripleChecker.java:63) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.addOtherSuccessors(DeterministicInterpolantAutomaton.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:200) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetDelayReduction.search(SleepSetDelayReduction.java:183) at de.uni_freiburg.informatik.ultimate.automata.partialorder.SleepSetDelayReduction.(SleepSetDelayReduction.java:111) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:209) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:509) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:364) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 42 more [2021-06-07 03:38:46,586 INFO L168 Benchmark]: Toolchain (without parser) took 604003.52 ms. Allocated memory was 337.6 MB in the beginning and 763.4 MB in the end (delta: 425.7 MB). Free memory was 318.0 MB in the beginning and 225.9 MB in the end (delta: 92.2 MB). Peak memory consumption was 520.4 MB. Max. memory is 16.0 GB. [2021-06-07 03:38:46,587 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 337.6 MB. Free memory is still 319.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 03:38:46,587 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.57 ms. Allocated memory is still 337.6 MB. Free memory was 317.9 MB in the beginning and 316.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-07 03:38:46,587 INFO L168 Benchmark]: Boogie Preprocessor took 11.21 ms. Allocated memory is still 337.6 MB. Free memory was 316.5 MB in the beginning and 315.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-07 03:38:46,587 INFO L168 Benchmark]: RCFGBuilder took 276.90 ms. Allocated memory is still 337.6 MB. Free memory was 315.4 MB in the beginning and 299.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-06-07 03:38:46,587 INFO L168 Benchmark]: TraceAbstraction took 603692.07 ms. Allocated memory was 337.6 MB in the beginning and 763.4 MB in the end (delta: 425.7 MB). Free memory was 299.4 MB in the beginning and 225.9 MB in the end (delta: 73.5 MB). Peak memory consumption was 501.6 MB. Max. memory is 16.0 GB. [2021-06-07 03:38:46,587 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 337.6 MB. Free memory is still 319.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 18.57 ms. Allocated memory is still 337.6 MB. Free memory was 317.9 MB in the beginning and 316.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 11.21 ms. Allocated memory is still 337.6 MB. Free memory was 316.5 MB in the beginning and 315.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 276.90 ms. Allocated memory is still 337.6 MB. Free memory was 315.4 MB in the beginning and 299.9 MB in the end (delta: 15.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 603692.07 ms. Allocated memory was 337.6 MB in the beginning and 763.4 MB in the end (delta: 425.7 MB). Free memory was 299.4 MB in the beginning and 225.9 MB in the end (delta: 73.5 MB). Peak memory consumption was 501.6 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: ASSERTION VIOLATION File: ../src/math/lp/int_solver.cpp Line: 562 Failed to verify: get_freedom_interval_for_column(j, inf_l, l, inf_u, u, m) || settings().get_cancel_flag() Z3 4.8.11.0 Please file an issue with this message and more detail about how you encountered it at https://github.com/Z3Prover/z3/issues/new : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...