/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-14 21:41:12,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-14 21:41:12,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-14 21:41:12,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-14 21:41:12,093 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-07-14 21:41:12,111 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-14 21:41:12,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-14 21:41:12,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-14 21:41:12,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-14 21:41:12,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-14 21:41:12,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-14 21:41:12,113 INFO L138 SettingsManager]: * Use SBE=true [2021-07-14 21:41:12,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-14 21:41:12,113 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-14 21:41:12,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-14 21:41:12,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-14 21:41:12,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-14 21:41:12,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-14 21:41:12,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-14 21:41:12,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-14 21:41:12,114 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-14 21:41:12,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-14 21:41:12,114 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-14 21:41:12,114 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-14 21:41:12,114 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-14 21:41:12,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-14 21:41:12,114 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-14 21:41:12,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-14 21:41:12,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-14 21:41:12,115 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-14 21:41:12,115 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-14 21:41:12,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-14 21:41:12,115 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-14 21:41:12,115 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-14 21:41:12,115 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-14 21:41:12,115 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-14 21:41:12,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-14 21:41:12,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-14 21:41:12,117 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-14 21:41:12,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-14 21:41:12,117 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-14 21:41:12,365 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-14 21:41:12,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-14 21:41:12,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-14 21:41:12,393 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-14 21:41:12,394 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-14 21:41:12,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun.wvr.bpl [2021-07-14 21:41:12,394 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-fun.wvr.bpl' [2021-07-14 21:41:12,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-14 21:41:12,433 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-14 21:41:12,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-14 21:41:12,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-14 21:41:12,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-14 21:41:12,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:41:12" (1/1) ... [2021-07-14 21:41:12,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:41:12" (1/1) ... [2021-07-14 21:41:12,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-14 21:41:12,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-14 21:41:12,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-14 21:41:12,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-14 21:41:12,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:41:12" (1/1) ... [2021-07-14 21:41:12,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:41:12" (1/1) ... [2021-07-14 21:41:12,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:41:12" (1/1) ... [2021-07-14 21:41:12,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:41:12" (1/1) ... [2021-07-14 21:41:12,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:41:12" (1/1) ... [2021-07-14 21:41:12,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:41:12" (1/1) ... [2021-07-14 21:41:12,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:41:12" (1/1) ... [2021-07-14 21:41:12,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-14 21:41:12,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-14 21:41:12,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-14 21:41:12,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-14 21:41:12,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:41:12" (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 [2021-07-14 21:41:12,500 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-14 21:41:12,500 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-14 21:41:12,500 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-14 21:41:12,500 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-14 21:41:12,501 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-14 21:41:12,501 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-14 21:41:12,501 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-14 21:41:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-14 21:41:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-14 21:41:12,502 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-14 21:41:12,502 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-14 21:41:12,502 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-14 21:41:12,503 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-14 21:41:12,756 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-14 21:41:12,756 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-14 21:41:12,758 INFO L202 PluginConnector]: Adding new model min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:41:12 BoogieIcfgContainer [2021-07-14 21:41:12,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-14 21:41:12,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-14 21:41:12,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-14 21:41:12,761 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-14 21:41:12,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 14.07 09:41:12" (1/2) ... [2021-07-14 21:41:12,762 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b38bdae and model type min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 09:41:12, skipping insertion in model container [2021-07-14 21:41:12,762 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 09:41:12" (2/2) ... [2021-07-14 21:41:12,763 INFO L111 eAbstractionObserver]: Analyzing ICFG min-fun.wvr.bpl [2021-07-14 21:41:12,766 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-14 21:41:12,766 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-14 21:41:12,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-14 21:41:12,766 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-14 21:41:12,833 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-14 21:41:12,848 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 [2021-07-14 21:41:12,897 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-14 21:41:12,897 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-14 21:41:12,897 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-14 21:41:12,897 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-14 21:41:12,897 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-14 21:41:12,897 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-14 21:41:12,897 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-14 21:41:12,898 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-14 21:41:12,973 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:12,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:12,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1056010628, now seen corresponding path program 1 times [2021-07-14 21:41:12,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:12,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064419203] [2021-07-14 21:41:12,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:13,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:13,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:13,098 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:13,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064419203] [2021-07-14 21:41:13,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064419203] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:41:13,099 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:41:13,099 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-14 21:41:13,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296899044] [2021-07-14 21:41:13,103 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-14 21:41:13,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:13,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-14 21:41:13,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-14 21:41:13,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:13,119 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:13,120 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:41:13,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:13,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:13,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-14 21:41:13,130 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:13,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:13,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1283631334, now seen corresponding path program 1 times [2021-07-14 21:41:13,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:13,130 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878363013] [2021-07-14 21:41:13,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:13,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:13,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:41:13,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:13,157 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878363013] [2021-07-14 21:41:13,157 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878363013] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:41:13,157 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-14 21:41:13,157 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-14 21:41:13,157 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855558600] [2021-07-14 21:41:13,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-14 21:41:13,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:13,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-14 21:41:13,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-14 21:41:13,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:13,159 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:13,159 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:41:13,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:13,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:13,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:13,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:13,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-14 21:41:13,192 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:13,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:13,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1880625638, now seen corresponding path program 1 times [2021-07-14 21:41:13,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:13,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947505383] [2021-07-14 21:41:13,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:13,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:13,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:13,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947505383] [2021-07-14 21:41:13,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947505383] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:13,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522186027] [2021-07-14 21:41:13,235 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 [2021-07-14 21:41:13,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:13,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-14 21:41:13,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:13,356 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-14 21:41:13,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522186027] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-14 21:41:13,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-07-14 21:41:13,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2021-07-14 21:41:13,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640086652] [2021-07-14 21:41:13,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-14 21:41:13,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:13,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-14 21:41:13,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-07-14 21:41:13,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:13,357 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:13,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:41:13,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:13,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:13,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:13,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:13,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:13,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:13,616 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:41:13,617 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:13,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:13,617 INFO L82 PathProgramCache]: Analyzing trace with hash 830293816, now seen corresponding path program 1 times [2021-07-14 21:41:13,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:13,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240149101] [2021-07-14 21:41:13,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:13,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:13,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:13,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240149101] [2021-07-14 21:41:13,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240149101] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:13,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979602676] [2021-07-14 21:41:13,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 [2021-07-14 21:41:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:13,988 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-14 21:41:13,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:14,453 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-14 21:41:14,453 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 16 treesize of output 14 [2021-07-14 21:41:14,457 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:14,465 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:14,465 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 21 treesize of output 21 [2021-07-14 21:41:14,466 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:14,541 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:14,551 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-07-14 21:41:14,551 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 16 treesize of output 14 [2021-07-14 21:41:14,554 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:14,567 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:14,567 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 11 treesize of output 15 [2021-07-14 21:41:14,583 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:14,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:14,645 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 2 dim-1 vars, End of recursive call: and 4 xjuncts. [2021-07-14 21:41:14,646 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:133, output treesize:83 [2021-07-14 21:41:14,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:14,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979602676] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:14,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:14,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2021-07-14 21:41:14,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089321276] [2021-07-14 21:41:14,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:41:14,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:14,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:41:14,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:41:14,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:14,784 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:14,784 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 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) [2021-07-14 21:41:14,784 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:14,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:14,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:14,785 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:15,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:15,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:15,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:15,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:15,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:41:15,321 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:15,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:15,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1021259562, now seen corresponding path program 2 times [2021-07-14 21:41:15,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:15,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555126589] [2021-07-14 21:41:15,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:15,367 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:15,367 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:15,367 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555126589] [2021-07-14 21:41:15,367 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555126589] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:15,367 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440194418] [2021-07-14 21:41:15,367 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 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 [2021-07-14 21:41:15,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:41:15,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:41:15,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-14 21:41:15,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:15,491 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:15,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440194418] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:15,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:15,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-14 21:41:15,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541754470] [2021-07-14 21:41:15,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-14 21:41:15,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:15,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-14 21:41:15,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-07-14 21:41:15,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:15,492 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:15,492 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:41:15,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:15,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:15,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:15,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:15,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:15,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:15,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:15,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:15,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:15,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:41:15,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:41:15,877 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:15,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:15,877 INFO L82 PathProgramCache]: Analyzing trace with hash -925346888, now seen corresponding path program 1 times [2021-07-14 21:41:15,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:15,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714610410] [2021-07-14 21:41:15,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:15,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:16,451 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:16,451 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:16,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714610410] [2021-07-14 21:41:16,451 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714610410] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:16,451 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1340404314] [2021-07-14 21:41:16,451 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 [2021-07-14 21:41:16,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:16,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 30 conjunts are in the unsatisfiable core [2021-07-14 21:41:16,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:17,163 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-07-14 21:41:17,366 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 48 [2021-07-14 21:41:17,473 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_13], 2=[A, v_prenex_14]} [2021-07-14 21:41:17,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:17,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:41:17,483 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:17,597 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2021-07-14 21:41:17,598 INFO L628 ElimStorePlain]: treesize reduction 54, result has 69.8 percent of original size [2021-07-14 21:41:17,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:17,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:17,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-07-14 21:41:17,605 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:17,648 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:17,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:17,652 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:17,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:17,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2021-07-14 21:41:17,656 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:17,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:17,661 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:17,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2021-07-14 21:41:17,663 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:17,698 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:17,702 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: and 5 xjuncts. [2021-07-14 21:41:17,703 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 6 variables, input treesize:193, output treesize:51 [2021-07-14 21:41:17,764 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:17,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1340404314] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:17,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:17,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 21:41:17,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956514520] [2021-07-14 21:41:17,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:41:17,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:17,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:41:17,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=288, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:41:17,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:17,766 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:17,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 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) [2021-07-14 21:41:17,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:17,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:17,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:17,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:17,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:41:17,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:18,346 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2021-07-14 21:41:18,611 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2021-07-14 21:41:18,750 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2021-07-14 21:41:18,933 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2021-07-14 21:41:19,113 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2021-07-14 21:41:19,359 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2021-07-14 21:41:19,558 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-07-14 21:41:19,912 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2021-07-14 21:41:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:20,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:41:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:20,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-07-14 21:41:20,283 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:20,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:20,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1682038358, now seen corresponding path program 2 times [2021-07-14 21:41:20,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:20,284 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050358586] [2021-07-14 21:41:20,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:20,333 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:20,333 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:20,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050358586] [2021-07-14 21:41:20,333 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050358586] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:20,333 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1012027814] [2021-07-14 21:41:20,333 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 [2021-07-14 21:41:20,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:41:20,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:41:20,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-14 21:41:20,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:20,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1012027814] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:20,471 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:20,471 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2021-07-14 21:41:20,471 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364266409] [2021-07-14 21:41:20,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-14 21:41:20,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:20,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-14 21:41:20,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-07-14 21:41:20,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:20,472 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:20,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:41:20,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:20,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:20,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:20,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:20,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-14 21:41:20,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:20,472 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:20,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:20,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:20,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:20,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:41:20,930 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:41:20,931 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:20,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:20,931 INFO L82 PathProgramCache]: Analyzing trace with hash -1511259848, now seen corresponding path program 3 times [2021-07-14 21:41:20,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:20,931 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100553580] [2021-07-14 21:41:20,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:21,510 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-07-14 21:41:21,652 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-07-14 21:41:21,782 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-07-14 21:41:22,039 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:22,039 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:22,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100553580] [2021-07-14 21:41:22,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100553580] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:22,039 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690325447] [2021-07-14 21:41:22,039 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 [2021-07-14 21:41:22,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-07-14 21:41:22,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:41:22,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-14 21:41:22,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:22,615 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-07-14 21:41:22,826 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-07-14 21:41:23,385 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2021-07-14 21:41:24,172 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 103 [2021-07-14 21:41:24,928 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 124 [2021-07-14 21:41:25,190 INFO L446 ElimStorePlain]: Different costs {1=[v_prenex_63, v_prenex_52], 5=[v_prenex_61, A, v_prenex_51, v_prenex_62, v_prenex_56, v_prenex_59], 6=[v_prenex_60, v_prenex_53]} [2021-07-14 21:41:25,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:25,199 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-07-14 21:41:25,200 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:25,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:25,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 13 [2021-07-14 21:41:25,210 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:25,520 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 126 [2021-07-14 21:41:25,521 INFO L628 ElimStorePlain]: treesize reduction 229, result has 59.0 percent of original size [2021-07-14 21:41:25,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:25,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2021-07-14 21:41:25,531 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:25,650 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2021-07-14 21:41:25,651 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:25,659 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:25,673 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:41:25,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 27 [2021-07-14 21:41:25,674 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:25,789 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2021-07-14 21:41:25,790 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:25,796 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:25,799 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:25,814 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:41:25,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 24 [2021-07-14 21:41:25,818 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:25,826 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:25,846 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:41:25,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 27 [2021-07-14 21:41:25,848 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:25,961 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-07-14 21:41:25,962 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:25,967 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:25,984 INFO L354 Elim1Store]: treesize reduction 4, result has 76.5 percent of original size [2021-07-14 21:41:25,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 31 [2021-07-14 21:41:25,996 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:26,117 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-07-14 21:41:26,117 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:26,122 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:26,133 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:26,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 35 [2021-07-14 21:41:26,137 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:26,249 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-07-14 21:41:26,249 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:26,254 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:26,267 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-07-14 21:41:26,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 27 [2021-07-14 21:41:26,269 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:26,368 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:26,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:26,382 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:26,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 40 treesize of output 38 [2021-07-14 21:41:26,387 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 21:41:26,485 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:41:26,486 INFO L518 ElimStorePlain]: Eliminatee v_prenex_60 vanished before elimination [2021-07-14 21:41:26,486 INFO L518 ElimStorePlain]: Eliminatee v_prenex_53 vanished before elimination [2021-07-14 21:41:26,501 INFO L550 ElimStorePlain]: Start of recursive call 1: 16 dim-0 vars, 10 dim-1 vars, End of recursive call: and 8 xjuncts. [2021-07-14 21:41:26,501 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 26 variables, input treesize:602, output treesize:92 [2021-07-14 21:41:26,623 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:26,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690325447] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:26,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:26,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 25 [2021-07-14 21:41:26,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746670262] [2021-07-14 21:41:26,624 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 21:41:26,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:26,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 21:41:26,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2021-07-14 21:41:26,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:26,625 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:26,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.24) internal successors, (56), 25 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:41:26,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:26,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:26,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:26,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:26,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:26,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:26,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:41:26,625 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:27,044 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 37 [2021-07-14 21:41:27,255 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 48 [2021-07-14 21:41:27,463 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 52 [2021-07-14 21:41:27,666 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 51 [2021-07-14 21:41:28,051 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 68 [2021-07-14 21:41:28,434 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-07-14 21:41:28,810 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 109 [2021-07-14 21:41:29,462 WARN L205 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 87 [2021-07-14 21:41:30,062 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 85 [2021-07-14 21:41:30,942 WARN L205 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 141 [2021-07-14 21:41:31,578 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 117 [2021-07-14 21:41:32,498 WARN L205 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 156 [2021-07-14 21:41:34,209 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 218 DAG size of output: 170 [2021-07-14 21:41:34,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:34,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:34,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:34,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:34,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:34,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:34,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:41:34,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:41:34,615 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-07-14 21:41:34,616 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:34,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:34,616 INFO L82 PathProgramCache]: Analyzing trace with hash 104008918, now seen corresponding path program 4 times [2021-07-14 21:41:34,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:34,616 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054641845] [2021-07-14 21:41:34,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:34,696 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:34,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:34,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054641845] [2021-07-14 21:41:34,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054641845] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:34,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127220911] [2021-07-14 21:41:34,697 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 [2021-07-14 21:41:34,731 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-14 21:41:34,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:41:34,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-14 21:41:34,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:34,849 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:34,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127220911] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:34,849 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:41:34,849 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-07-14 21:41:34,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672842697] [2021-07-14 21:41:34,850 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-14 21:41:34,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:41:34,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-14 21:41:34,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2021-07-14 21:41:34,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:34,851 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:41:34,851 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.526315789473684) internal successors, (48), 19 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:41:34,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:34,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:34,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:34,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:34,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:34,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:34,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-14 21:41:34,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:41:34,851 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:41:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:41:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:41:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:41:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:41:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:41:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:41:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:41:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:41:35,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:41:35,356 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-07-14 21:41:35,357 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:41:35,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:41:35,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1874096200, now seen corresponding path program 5 times [2021-07-14 21:41:35,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:41:35,357 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761379334] [2021-07-14 21:41:35,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:41:35,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:41:36,495 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 162 [2021-07-14 21:41:36,916 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 80 [2021-07-14 21:41:37,126 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 170 [2021-07-14 21:41:37,816 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 129 [2021-07-14 21:41:38,009 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 169 [2021-07-14 21:41:38,679 WARN L205 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 128 [2021-07-14 21:41:38,828 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 153 [2021-07-14 21:41:39,350 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 97 [2021-07-14 21:41:39,492 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 148 [2021-07-14 21:41:39,999 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 92 [2021-07-14 21:41:40,347 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 51 [2021-07-14 21:41:40,593 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:41:40,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:41:40,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761379334] [2021-07-14 21:41:40,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761379334] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:41:40,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846049552] [2021-07-14 21:41:40,594 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 [2021-07-14 21:41:40,635 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-14 21:41:40,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:41:40,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-14 21:41:40,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:41:41,281 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-07-14 21:41:41,998 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2021-07-14 21:41:43,918 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification that was a NOOP. DAG size: 269 [2021-07-14 21:41:46,254 WARN L205 SmtUtils]: Spent 1.65 s on a formula simplification that was a NOOP. DAG size: 508 [2021-07-14 21:41:51,390 WARN L205 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 562 DAG size of output: 541 [2021-07-14 21:41:55,446 WARN L205 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 564 DAG size of output: 541 [2021-07-14 21:41:58,705 WARN L205 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 540 DAG size of output: 367 [2021-07-14 21:41:58,909 INFO L446 ElimStorePlain]: Different costs {7=[v_prenex_161, v_prenex_162, v_prenex_151, v_prenex_152, v_prenex_153, v_prenex_154, v_prenex_143, v_prenex_144, v_prenex_155, v_prenex_145, v_prenex_147, v_prenex_159, v_prenex_149], 10=[A, v_prenex_160, v_prenex_150, v_prenex_156, v_prenex_157, v_prenex_146, v_prenex_158, v_prenex_148]} [2021-07-14 21:41:58,927 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:41:58,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:58,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:58,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:41:58,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-07-14 21:41:58,932 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:00,497 WARN L205 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 437 DAG size of output: 412 [2021-07-14 21:42:00,498 INFO L628 ElimStorePlain]: treesize reduction 163, result has 87.8 percent of original size [2021-07-14 21:42:00,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:00,518 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:00,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:00,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:00,522 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:00,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-07-14 21:42:00,531 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:00,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:00,565 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:00,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:00,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:00,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-07-14 21:42:00,570 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:01,305 WARN L205 SmtUtils]: Spent 734.00 ms on a formula simplification that was a NOOP. DAG size: 398 [2021-07-14 21:42:01,305 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:01,328 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:01,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:01,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:01,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:01,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:42:01,340 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:02,064 WARN L205 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 388 [2021-07-14 21:42:02,064 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:02,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:02,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:02,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:02,087 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:02,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 25 [2021-07-14 21:42:02,090 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:02,784 WARN L205 SmtUtils]: Spent 694.00 ms on a formula simplification that was a NOOP. DAG size: 376 [2021-07-14 21:42:02,785 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:02,817 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:02,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:02,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:02,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:02,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-07-14 21:42:02,822 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:03,435 WARN L205 SmtUtils]: Spent 613.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2021-07-14 21:42:03,436 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:03,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:03,454 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:03,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:03,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:03,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 25 [2021-07-14 21:42:03,458 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:04,040 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2021-07-14 21:42:04,040 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:04,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:04,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:04,060 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:04,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:04,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-07-14 21:42:04,063 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:04,631 WARN L205 SmtUtils]: Spent 567.00 ms on a formula simplification that was a NOOP. DAG size: 340 [2021-07-14 21:42:04,632 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:04,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:04,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:04,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:04,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:04,651 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:04,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:04,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:42:04,653 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:05,168 WARN L205 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 327 [2021-07-14 21:42:05,168 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:05,183 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:05,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:05,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:05,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:05,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 22 [2021-07-14 21:42:05,188 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:05,634 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 315 [2021-07-14 21:42:05,634 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:05,649 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:05,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:05,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:05,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:05,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 22 [2021-07-14 21:42:05,654 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:06,082 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 302 [2021-07-14 21:42:06,082 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:06,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:06,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:06,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:06,099 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:06,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:42:06,108 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:06,519 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 289 [2021-07-14 21:42:06,520 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:06,533 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:06,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:06,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:06,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:06,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:42:06,537 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:06,926 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2021-07-14 21:42:06,927 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:06,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:06,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:06,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:42:06,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:06,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:06,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 22 [2021-07-14 21:42:06,950 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:07,321 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-07-14 21:42:07,321 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:07,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2021-07-14 21:42:07,344 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:07,699 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 255 [2021-07-14 21:42:07,700 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:07,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:07,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2021-07-14 21:42:07,725 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:08,054 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 245 [2021-07-14 21:42:08,055 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:08,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 19 [2021-07-14 21:42:08,073 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:08,386 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2021-07-14 21:42:08,386 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:08,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2021-07-14 21:42:08,407 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:08,704 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 225 [2021-07-14 21:42:08,704 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:08,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:08,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2021-07-14 21:42:08,724 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:09,008 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-07-14 21:42:09,008 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:09,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2021-07-14 21:42:09,025 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:09,292 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 203 [2021-07-14 21:42:09,292 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:09,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-07-14 21:42:09,312 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:09,573 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2021-07-14 21:42:09,574 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:09,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-14 21:42:09,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 19 [2021-07-14 21:42:09,589 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-07-14 21:42:09,833 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 183 [2021-07-14 21:42:09,833 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:42:09,847 INFO L550 ElimStorePlain]: Start of recursive call 1: 42 dim-0 vars, 21 dim-1 vars, End of recursive call: and 17 xjuncts. [2021-07-14 21:42:09,847 INFO L247 ElimStorePlain]: Needed 23 recursive calls to eliminate 63 variables, input treesize:1373, output treesize:198 [2021-07-14 21:42:09,996 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:42:09,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846049552] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:42:09,997 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:42:09,997 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15] total 30 [2021-07-14 21:42:09,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808440077] [2021-07-14 21:42:09,997 INFO L462 AbstractCegarLoop]: Interpolant automaton has 30 states [2021-07-14 21:42:09,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:42:09,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-07-14 21:42:09,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=734, Unknown=0, NotChecked=0, Total=870 [2021-07-14 21:42:09,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:09,998 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:42:09,998 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 30 states, 30 states have (on average 2.2) internal successors, (66), 30 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:42:09,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:09,998 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:09,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:09,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:09,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:09,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:09,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:09,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:09,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:42:09,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:10,867 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 61 [2021-07-14 21:42:11,196 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 55 [2021-07-14 21:42:11,533 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2021-07-14 21:42:11,993 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 67 [2021-07-14 21:42:12,687 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 93 [2021-07-14 21:42:13,494 WARN L205 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 103 [2021-07-14 21:42:16,779 WARN L205 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 249 DAG size of output: 206 [2021-07-14 21:42:20,682 WARN L205 SmtUtils]: Spent 3.77 s on a formula simplification. DAG size of input: 593 DAG size of output: 295 [2021-07-14 21:42:22,310 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 184 DAG size of output: 152 [2021-07-14 21:42:27,656 WARN L205 SmtUtils]: Spent 5.21 s on a formula simplification. DAG size of input: 348 DAG size of output: 315 [2021-07-14 21:42:31,156 WARN L205 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 277 DAG size of output: 213 [2021-07-14 21:42:40,541 WARN L205 SmtUtils]: Spent 9.14 s on a formula simplification. DAG size of input: 720 DAG size of output: 520 [2021-07-14 21:42:46,221 WARN L205 SmtUtils]: Spent 5.53 s on a formula simplification. DAG size of input: 365 DAG size of output: 316 [2021-07-14 21:42:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:46,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:42:46,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:46,678 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:42:46,679 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:42:46,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:42:46,679 INFO L82 PathProgramCache]: Analyzing trace with hash 415734870, now seen corresponding path program 6 times [2021-07-14 21:42:46,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:42:46,679 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918022777] [2021-07-14 21:42:46,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:42:46,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:42:46,758 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 9 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:42:46,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:42:46,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918022777] [2021-07-14 21:42:46,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918022777] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:42:46,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690480977] [2021-07-14 21:42:46,758 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 [2021-07-14 21:42:46,792 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-07-14 21:42:46,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:42:46,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-14 21:42:46,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:42:46,944 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 16 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:42:46,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690480977] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:42:46,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:42:46,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 22 [2021-07-14 21:42:46,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063996556] [2021-07-14 21:42:46,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-14 21:42:46,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:42:46,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-14 21:42:46,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-07-14 21:42:46,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:46,946 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:42:46,946 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 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) [2021-07-14 21:42:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-14 21:42:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:46,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:42:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:42:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:42:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:42:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:42:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:42:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:42:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:42:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:42:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:42:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:42:47,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-14 21:42:47,529 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:42:47,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:42:47,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1341800248, now seen corresponding path program 7 times [2021-07-14 21:42:47,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:42:47,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838850572] [2021-07-14 21:42:47,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:42:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:42:48,447 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2021-07-14 21:42:48,779 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 68 [2021-07-14 21:42:48,914 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 198 [2021-07-14 21:42:49,445 WARN L205 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 78 [2021-07-14 21:42:49,745 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 269 [2021-07-14 21:42:50,632 WARN L205 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 158 [2021-07-14 21:42:50,916 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 305 DAG size of output: 268 [2021-07-14 21:42:51,791 WARN L205 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 157 [2021-07-14 21:42:52,016 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 241 [2021-07-14 21:42:52,888 WARN L205 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 241 DAG size of output: 124 [2021-07-14 21:42:53,063 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 228 [2021-07-14 21:42:53,845 WARN L205 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 111 [2021-07-14 21:42:54,326 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 78 [2021-07-14 21:42:54,629 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 50 [2021-07-14 21:42:54,867 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:42:54,868 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:42:54,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838850572] [2021-07-14 21:42:54,868 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838850572] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:42:54,868 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273803590] [2021-07-14 21:42:54,868 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 [2021-07-14 21:42:54,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:42:54,904 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-07-14 21:42:54,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:42:55,460 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-07-14 21:42:56,050 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2021-07-14 21:42:57,363 WARN L205 SmtUtils]: Spent 936.00 ms on a formula simplification that was a NOOP. DAG size: 214 [2021-07-14 21:42:58,683 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 352 [2021-07-14 21:43:02,674 WARN L205 SmtUtils]: Spent 3.28 s on a formula simplification that was a NOOP. DAG size: 419 [2021-07-14 21:43:08,508 WARN L205 SmtUtils]: Spent 4.45 s on a formula simplification. DAG size of input: 877 DAG size of output: 365 [2021-07-14 21:43:15,270 WARN L205 SmtUtils]: Spent 5.49 s on a formula simplification. DAG size of input: 427 DAG size of output: 402 [2021-07-14 21:43:21,663 WARN L205 SmtUtils]: Spent 5.05 s on a formula simplification. DAG size of input: 531 DAG size of output: 504 [2021-07-14 21:43:28,405 WARN L205 SmtUtils]: Spent 5.19 s on a formula simplification. DAG size of input: 571 DAG size of output: 535 [2021-07-14 21:43:29,520 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_381, v_prenex_372, v_prenex_395, v_prenex_397, v_prenex_389, v_prenex_367, v_prenex_379], 9=[v_prenex_380, v_prenex_382, v_prenex_360, v_prenex_383, v_prenex_361, v_prenex_384, v_prenex_362, v_prenex_385, v_prenex_363, v_prenex_386, v_prenex_364, v_prenex_365, v_prenex_366, v_prenex_368, v_prenex_369, v_prenex_390, v_prenex_391, v_prenex_370, v_prenex_371, v_prenex_394, v_prenex_373, v_prenex_374, v_prenex_396, v_prenex_375, v_prenex_398, v_prenex_376, v_prenex_355, v_prenex_399, v_prenex_377, v_prenex_378, v_prenex_356, v_prenex_357, v_prenex_358, v_prenex_359, A]} [2021-07-14 21:43:29,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2021-07-14 21:43:29,561 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:32,526 WARN L205 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 851 DAG size of output: 649 [2021-07-14 21:43:32,528 INFO L628 ElimStorePlain]: treesize reduction 702, result has 71.7 percent of original size [2021-07-14 21:43:32,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 19 [2021-07-14 21:43:32,558 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:34,950 WARN L205 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 639 DAG size of output: 593 [2021-07-14 21:43:34,951 INFO L628 ElimStorePlain]: treesize reduction 145, result has 91.7 percent of original size [2021-07-14 21:43:34,951 INFO L518 ElimStorePlain]: Eliminatee v_prenex_395 vanished before elimination [2021-07-14 21:43:34,951 INFO L518 ElimStorePlain]: Eliminatee v_prenex_397 vanished before elimination [2021-07-14 21:43:34,952 INFO L518 ElimStorePlain]: Eliminatee v_prenex_389 vanished before elimination [2021-07-14 21:43:34,952 INFO L518 ElimStorePlain]: Eliminatee v_prenex_367 vanished before elimination [2021-07-14 21:43:34,952 INFO L518 ElimStorePlain]: Eliminatee v_prenex_379 vanished before elimination [2021-07-14 21:43:34,986 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:35,044 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-07-14 21:43:35,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 52 treesize of output 56 [2021-07-14 21:43:35,052 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:36,245 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 601 [2021-07-14 21:43:36,246 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:36,246 INFO L518 ElimStorePlain]: Eliminatee v_prenex_382 vanished before elimination [2021-07-14 21:43:36,271 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:36,324 INFO L354 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2021-07-14 21:43:36,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 45 [2021-07-14 21:43:36,327 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:37,491 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 597 [2021-07-14 21:43:37,492 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:37,492 INFO L518 ElimStorePlain]: Eliminatee v_prenex_383 vanished before elimination [2021-07-14 21:43:37,519 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:37,564 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:37,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:43:37,576 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:39,982 WARN L205 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 596 DAG size of output: 595 [2021-07-14 21:43:39,983 INFO L628 ElimStorePlain]: treesize reduction 13, result has 99.2 percent of original size [2021-07-14 21:43:39,983 INFO L518 ElimStorePlain]: Eliminatee v_prenex_384 vanished before elimination [2021-07-14 21:43:39,983 INFO L518 ElimStorePlain]: Eliminatee v_prenex_362 vanished before elimination [2021-07-14 21:43:40,007 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:40,058 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:43:40,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:43:40,059 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:41,179 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 589 [2021-07-14 21:43:41,179 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:41,203 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:41,251 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:43:41,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:43:41,252 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:42,384 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification that was a NOOP. DAG size: 584 [2021-07-14 21:43:42,385 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:42,408 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:42,464 INFO L354 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2021-07-14 21:43:42,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 50 treesize of output 52 [2021-07-14 21:43:42,468 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:43,556 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 580 [2021-07-14 21:43:43,557 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:43,582 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:43,624 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:43,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:43:43,639 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:44,746 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 575 [2021-07-14 21:43:44,746 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:44,774 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:44,809 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:44,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:43:44,819 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:45,965 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 576 [2021-07-14 21:43:45,966 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:45,988 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:46,037 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:43:46,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:43:46,038 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:47,130 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification that was a NOOP. DAG size: 570 [2021-07-14 21:43:47,130 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:47,152 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:47,200 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:43:47,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:43:47,201 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:48,267 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 566 [2021-07-14 21:43:48,268 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:48,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:48,331 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:48,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:43:48,338 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:49,376 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 560 [2021-07-14 21:43:49,377 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:49,399 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:49,440 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:49,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 60 [2021-07-14 21:43:49,450 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:50,530 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 566 [2021-07-14 21:43:50,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:50,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:50,594 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:43:50,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:43:50,596 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:51,660 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 559 [2021-07-14 21:43:51,660 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:51,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:51,724 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:43:51,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:43:51,726 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:52,762 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 552 [2021-07-14 21:43:52,763 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:52,783 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:52,824 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:52,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:43:52,831 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:54,830 WARN L205 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 548 DAG size of output: 547 [2021-07-14 21:43:54,831 INFO L628 ElimStorePlain]: treesize reduction 5, result has 99.7 percent of original size [2021-07-14 21:43:54,853 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:54,859 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:54,908 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:43:54,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 36 treesize of output 38 [2021-07-14 21:43:54,911 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:54,932 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:54,977 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:43:54,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 41 [2021-07-14 21:43:54,979 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:55,974 WARN L205 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 538 [2021-07-14 21:43:55,974 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:56,002 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:56,041 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:43:56,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:43:56,049 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:57,016 WARN L205 SmtUtils]: Spent 966.00 ms on a formula simplification that was a NOOP. DAG size: 531 [2021-07-14 21:43:57,017 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:57,035 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:57,075 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:43:57,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:43:57,077 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:58,037 WARN L205 SmtUtils]: Spent 959.00 ms on a formula simplification that was a NOOP. DAG size: 524 [2021-07-14 21:43:58,037 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:58,056 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:58,091 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:58,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:43:58,097 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-07-14 21:43:59,021 WARN L205 SmtUtils]: Spent 923.00 ms on a formula simplification that was a NOOP. DAG size: 515 [2021-07-14 21:43:59,021 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:43:59,039 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:43:59,091 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-07-14 21:43:59,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 52 treesize of output 56 [2021-07-14 21:43:59,099 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-07-14 21:44:00,006 WARN L205 SmtUtils]: Spent 906.00 ms on a formula simplification that was a NOOP. DAG size: 510 [2021-07-14 21:44:00,006 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:44:00,026 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:44:00,061 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:44:00,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 57 [2021-07-14 21:44:00,067 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-07-14 21:44:00,941 WARN L205 SmtUtils]: Spent 873.00 ms on a formula simplification that was a NOOP. DAG size: 498 [2021-07-14 21:44:00,942 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:44:00,959 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:44:00,998 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:44:00,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 41 [2021-07-14 21:44:01,000 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-07-14 21:44:01,855 WARN L205 SmtUtils]: Spent 853.00 ms on a formula simplification that was a NOOP. DAG size: 491 [2021-07-14 21:44:01,855 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:44:01,855 INFO L518 ElimStorePlain]: Eliminatee v_prenex_355 vanished before elimination [2021-07-14 21:44:01,855 INFO L518 ElimStorePlain]: Eliminatee v_prenex_399 vanished before elimination [2021-07-14 21:44:01,855 INFO L518 ElimStorePlain]: Eliminatee v_prenex_377 vanished before elimination [2021-07-14 21:44:01,855 INFO L518 ElimStorePlain]: Eliminatee v_prenex_378 vanished before elimination [2021-07-14 21:44:01,875 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:44:01,914 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:44:01,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:44:01,916 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts. [2021-07-14 21:44:02,758 WARN L205 SmtUtils]: Spent 841.00 ms on a formula simplification that was a NOOP. DAG size: 484 [2021-07-14 21:44:02,758 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:44:02,776 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:44:02,815 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:44:02,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 47 treesize of output 41 [2021-07-14 21:44:02,817 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-07-14 21:44:03,655 WARN L205 SmtUtils]: Spent 837.00 ms on a formula simplification that was a NOOP. DAG size: 477 [2021-07-14 21:44:03,656 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:44:03,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:44:03,710 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:44:03,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:44:03,712 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-07-14 21:44:04,517 WARN L205 SmtUtils]: Spent 804.00 ms on a formula simplification that was a NOOP. DAG size: 470 [2021-07-14 21:44:04,518 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:44:04,534 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:44:04,571 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:44:04,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 41 [2021-07-14 21:44:04,573 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-07-14 21:44:05,374 WARN L205 SmtUtils]: Spent 800.00 ms on a formula simplification that was a NOOP. DAG size: 463 [2021-07-14 21:44:05,374 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:44:05,389 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-14 21:44:05,426 INFO L354 Elim1Store]: treesize reduction 16, result has 51.5 percent of original size [2021-07-14 21:44:05,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 49 treesize of output 41 [2021-07-14 21:44:05,428 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-07-14 21:44:06,206 WARN L205 SmtUtils]: Spent 777.00 ms on a formula simplification that was a NOOP. DAG size: 456 [2021-07-14 21:44:06,206 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-14 21:44:06,282 INFO L550 ElimStorePlain]: Start of recursive call 1: 70 dim-0 vars, 42 dim-1 vars, End of recursive call: and 16 xjuncts. [2021-07-14 21:44:06,282 INFO L247 ElimStorePlain]: Needed 31 recursive calls to eliminate 112 variables, input treesize:2507, output treesize:278 [2021-07-14 21:44:06,502 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:44:06,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273803590] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:44:06,502 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:44:06,502 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 33 [2021-07-14 21:44:06,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565076663] [2021-07-14 21:44:06,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-14 21:44:06,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:44:06,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-14 21:44:06,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=946, Unknown=0, NotChecked=0, Total=1056 [2021-07-14 21:44:06,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:44:06,504 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:44:06,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.1818181818181817) internal successors, (72), 33 states have internal predecessors, (72), 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) [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:44:06,504 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:44:07,152 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 34 [2021-07-14 21:44:07,773 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 52 [2021-07-14 21:44:08,150 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 58 [2021-07-14 21:44:08,420 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2021-07-14 21:44:08,765 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 63 [2021-07-14 21:44:09,351 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 83 [2021-07-14 21:44:09,966 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 91 [2021-07-14 21:44:11,068 WARN L205 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 139 [2021-07-14 21:44:12,806 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 222 DAG size of output: 160 [2021-07-14 21:44:14,002 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 232 DAG size of output: 149 [2021-07-14 21:44:18,046 WARN L205 SmtUtils]: Spent 3.78 s on a formula simplification. DAG size of input: 399 DAG size of output: 250 [2021-07-14 21:44:20,721 WARN L205 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 479 DAG size of output: 362 [2021-07-14 21:44:25,178 WARN L205 SmtUtils]: Spent 4.23 s on a formula simplification. DAG size of input: 414 DAG size of output: 286 [2021-07-14 21:44:29,176 WARN L205 SmtUtils]: Spent 3.80 s on a formula simplification. DAG size of input: 333 DAG size of output: 246 [2021-07-14 21:44:40,480 WARN L205 SmtUtils]: Spent 11.00 s on a formula simplification. DAG size of input: 511 DAG size of output: 430 [2021-07-14 21:44:43,292 WARN L205 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 507 DAG size of output: 362 [2021-07-14 21:44:55,026 WARN L205 SmtUtils]: Spent 11.23 s on a formula simplification. DAG size of input: 880 DAG size of output: 385 [2021-07-14 21:45:02,874 WARN L205 SmtUtils]: Spent 7.56 s on a formula simplification. DAG size of input: 574 DAG size of output: 429 [2021-07-14 21:45:03,307 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2021-07-14 21:45:04,005 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 155 [2021-07-14 21:45:04,775 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 129 [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:45:04,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:45:05,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable86 [2021-07-14 21:45:05,093 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:45:05,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:45:05,093 INFO L82 PathProgramCache]: Analyzing trace with hash -331166506, now seen corresponding path program 8 times [2021-07-14 21:45:05,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:45:05,093 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650553083] [2021-07-14 21:45:05,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:45:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:45:05,197 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:45:05,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-14 21:45:05,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650553083] [2021-07-14 21:45:05,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650553083] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:45:05,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830126937] [2021-07-14 21:45:05,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-07-14 21:45:05,227 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-14 21:45:05,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-14 21:45:05,227 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-14 21:45:05,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-14 21:45:05,396 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-14 21:45:05,396 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830126937] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-14 21:45:05,396 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-14 21:45:05,396 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 25 [2021-07-14 21:45:05,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181110777] [2021-07-14 21:45:05,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-14 21:45:05,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-14 21:45:05,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-14 21:45:05,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-07-14 21:45:05,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:45:05,398 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-14 21:45:05,398 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.4) internal successors, (60), 25 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:45:05,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-14 21:45:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-14 21:45:05,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-14 21:45:06,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable189 [2021-07-14 21:45:06,057 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-14 21:45:06,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-14 21:45:06,057 INFO L82 PathProgramCache]: Analyzing trace with hash 829116344, now seen corresponding path program 9 times [2021-07-14 21:45:06,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-14 21:45:06,057 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003663368] [2021-07-14 21:45:06,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-14 21:45:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-14 21:45:21,350 WARN L205 SmtUtils]: Spent 13.43 s on a formula simplification. DAG size of input: 133 DAG size of output: 64 [2021-07-14 21:45:33,602 WARN L205 SmtUtils]: Spent 12.16 s on a formula simplification. DAG size of input: 128 DAG size of output: 59 [2021-07-14 21:45:56,378 WARN L205 SmtUtils]: Spent 22.70 s on a formula simplification. DAG size of input: 157 DAG size of output: 74 [2021-07-14 21:45:56,556 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 38 [2021-07-14 21:46:19,149 WARN L205 SmtUtils]: Spent 22.59 s on a formula simplification. DAG size of input: 215 DAG size of output: 130 [2021-07-14 21:46:19,348 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 57 [2021-07-14 21:48:19,464 WARN L205 SmtUtils]: Spent 2.00 m on a formula simplification. DAG size of input: 390 DAG size of output: 364 [2021-07-14 21:48:20,478 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 86 [2021-07-14 21:51:56,615 WARN L205 SmtUtils]: Spent 3.60 m on a formula simplification. DAG size of input: 534 DAG size of output: 702 [2021-07-14 21:51:56,831 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 702 [2021-07-14 21:51:58,890 WARN L205 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 699 DAG size of output: 133 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown