/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-None-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-a47a088281b0b97d17910950432b7c5b5bc3adeb-a47a088 [2021-07-13 23:27:30,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-13 23:27:30,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-13 23:27:30,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-13 23:27:30,735 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-None-NoLbe.epf [2021-07-13 23:27:30,763 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-13 23:27:30,763 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-13 23:27:30,763 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-13 23:27:30,763 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-13 23:27:30,764 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-13 23:27:30,765 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-13 23:27:30,765 INFO L138 SettingsManager]: * Use SBE=true [2021-07-13 23:27:30,765 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-13 23:27:30,765 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-13 23:27:30,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-13 23:27:30,766 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-13 23:27:30,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-13 23:27:30,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-13 23:27:30,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-13 23:27:30,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-13 23:27:30,766 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-13 23:27:30,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-13 23:27:30,767 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-13 23:27:30,767 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-13 23:27:30,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-13 23:27:30,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-13 23:27:30,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-13 23:27:30,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-13 23:27:30,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-13 23:27:30,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-13 23:27:30,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-13 23:27:30,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-13 23:27:30,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-13 23:27:30,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-13 23:27:30,771 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-13 23:27:30,771 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-13 23:27:30,771 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-13 23:27:30,771 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-13 23:27:31,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-13 23:27:31,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-13 23:27:31,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-13 23:27:31,081 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-13 23:27:31,082 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-13 23:27:31,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl [2021-07-13 23:27:31,083 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2021-07-13 23:27:31,104 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-13 23:27:31,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-13 23:27:31,106 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-13 23:27:31,106 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-13 23:27:31,106 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-13 23:27:31,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:27:31" (1/1) ... [2021-07-13 23:27:31,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:27:31" (1/1) ... [2021-07-13 23:27:31,126 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-13 23:27:31,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-13 23:27:31,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-13 23:27:31,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-13 23:27:31,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:27:31" (1/1) ... [2021-07-13 23:27:31,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:27:31" (1/1) ... [2021-07-13 23:27:31,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:27:31" (1/1) ... [2021-07-13 23:27:31,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:27:31" (1/1) ... [2021-07-13 23:27:31,136 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:27:31" (1/1) ... [2021-07-13 23:27:31,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:27:31" (1/1) ... [2021-07-13 23:27:31,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:27:31" (1/1) ... [2021-07-13 23:27:31,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-13 23:27:31,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-13 23:27:31,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-13 23:27:31,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-13 23:27:31,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:27:31" (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 [2021-07-13 23:27:31,199 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-13 23:27:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-13 23:27:31,199 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-13 23:27:31,199 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-13 23:27:31,199 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-13 23:27:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-13 23:27:31,200 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-13 23:27:31,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-13 23:27:31,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-13 23:27:31,200 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-13 23:27:31,201 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-13 23:27:31,201 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-13 23:27:31,202 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-13 23:27:31,421 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-13 23:27:31,421 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-13 23:27:31,423 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:27:31 BoogieIcfgContainer [2021-07-13 23:27:31,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-13 23:27:31,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-13 23:27:31,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-13 23:27:31,426 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-13 23:27:31,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 13.07 11:27:31" (1/2) ... [2021-07-13 23:27:31,427 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37027ee5 and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 11:27:31, skipping insertion in model container [2021-07-13 23:27:31,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 11:27:31" (2/2) ... [2021-07-13 23:27:31,429 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2021-07-13 23:27:31,433 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-13 23:27:31,433 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-13 23:27:31,433 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-13 23:27:31,434 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-13 23:27:31,469 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-13 23:27:31,505 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 [2021-07-13 23:27:31,626 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-13 23:27:31,626 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-13 23:27:31,626 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-13 23:27:31,626 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-13 23:27:31,626 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-13 23:27:31,626 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-13 23:27:31,627 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-13 23:27:31,627 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-13 23:27:31,641 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 29 transitions, 82 flow [2021-07-13 23:27:31,670 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 112 states, 111 states have (on average 2.810810810810811) internal successors, (312), 111 states have internal predecessors, (312), 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) [2021-07-13 23:27:31,685 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:31,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:31,695 INFO L82 PathProgramCache]: Analyzing trace with hash -924986746, now seen corresponding path program 1 times [2021-07-13 23:27:31,702 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:31,702 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042061709] [2021-07-13 23:27:31,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:31,935 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-13 23:27:31,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:27:31,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042061709] [2021-07-13 23:27:31,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042061709] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:31,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1481556079] [2021-07-13 23:27:31,939 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 [2021-07-13 23:27:31,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:31,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-13 23:27:31,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-13 23:27:32,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1481556079] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:32,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:32,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-07-13 23:27:32,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189956628] [2021-07-13 23:27:32,185 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-13 23:27:32,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:32,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-13 23:27:32,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-07-13 23:27:32,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:32,203 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:32,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:27:32,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:32,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-13 23:27:32,541 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:32,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:32,542 INFO L82 PathProgramCache]: Analyzing trace with hash -718642012, now seen corresponding path program 2 times [2021-07-13 23:27:32,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:32,542 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713989785] [2021-07-13 23:27:32,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:32,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:32,951 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:32,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:27:32,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713989785] [2021-07-13 23:27:32,977 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713989785] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:32,977 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65160688] [2021-07-13 23:27:32,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:33,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-13 23:27:33,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:27:33,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-13 23:27:33,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:33,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:33,493 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:27:33,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 20 treesize of output 28 [2021-07-13 23:27:33,496 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:27:33,512 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:27:33,543 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-07-13 23:27:33,543 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:73 [2021-07-13 23:27:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:33,663 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65160688] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:33,663 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:33,663 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-07-13 23:27:33,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133448243] [2021-07-13 23:27:33,664 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-13 23:27:33,664 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:33,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-13 23:27:33,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-07-13 23:27:33,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:33,665 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:33,666 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:27:33,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:33,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:34,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:34,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:34,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:34,937 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:34,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:34,937 INFO L82 PathProgramCache]: Analyzing trace with hash 301283936, now seen corresponding path program 3 times [2021-07-13 23:27:34,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:34,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543965861] [2021-07-13 23:27:34,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:35,042 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:35,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:27:35,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543965861] [2021-07-13 23:27:35,042 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543965861] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:35,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308711069] [2021-07-13 23:27:35,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:35,091 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-13 23:27:35,092 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:27:35,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-13 23:27:35,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:35,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308711069] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:35,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:35,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2021-07-13 23:27:35,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626972434] [2021-07-13 23:27:35,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 23:27:35,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:35,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 23:27:35,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2021-07-13 23:27:35,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:35,275 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:35,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 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) [2021-07-13 23:27:35,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:35,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:35,275 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:35,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:35,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:35,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:35,792 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:35,793 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:35,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:35,794 INFO L82 PathProgramCache]: Analyzing trace with hash -162980508, now seen corresponding path program 4 times [2021-07-13 23:27:35,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:35,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817649648] [2021-07-13 23:27:35,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:35,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-13 23:27:35,902 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:27:35,902 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817649648] [2021-07-13 23:27:35,902 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817649648] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:35,909 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034362193] [2021-07-13 23:27:35,909 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:35,946 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-13 23:27:35,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:27:35,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-13 23:27:35,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:36,086 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 23 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-13 23:27:36,087 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034362193] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:36,087 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:36,087 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 18 [2021-07-13 23:27:36,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185698399] [2021-07-13 23:27:36,089 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-13 23:27:36,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:36,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-13 23:27:36,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-07-13 23:27:36,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:36,089 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:36,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 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) [2021-07-13 23:27:36,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:36,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:36,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:36,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:36,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:36,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:36,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:36,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:36,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:36,505 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:36,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:36,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1455061664, now seen corresponding path program 5 times [2021-07-13 23:27:36,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:36,506 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241799496] [2021-07-13 23:27:36,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:36,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:37,477 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 3 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:37,477 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:27:37,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241799496] [2021-07-13 23:27:37,477 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241799496] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:37,477 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806840931] [2021-07-13 23:27:37,477 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:37,517 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-13 23:27:37,518 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:27:37,519 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2021-07-13 23:27:37,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:38,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:38,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:38,540 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-13 23:27:38,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:38,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:38,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:38,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 21 [2021-07-13 23:27:38,545 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:27:38,552 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:27:38,553 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:27:38,553 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:56, output treesize:5 [2021-07-13 23:27:38,588 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:38,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806840931] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:38,588 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:38,589 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19] total 37 [2021-07-13 23:27:38,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791645685] [2021-07-13 23:27:38,589 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-13 23:27:38,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:38,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-13 23:27:38,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1216, Unknown=0, NotChecked=0, Total=1332 [2021-07-13 23:27:38,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:38,590 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:38,591 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.081081081081081) internal successors, (77), 37 states have internal predecessors, (77), 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) [2021-07-13 23:27:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:38,591 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:41,241 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 91 [2021-07-13 23:27:41,459 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 71 [2021-07-13 23:27:41,733 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 101 [2021-07-13 23:27:42,075 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 96 [2021-07-13 23:27:42,519 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 106 [2021-07-13 23:27:42,680 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2021-07-13 23:27:43,012 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2021-07-13 23:27:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:43,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:27:44,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:44,108 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:44,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:44,109 INFO L82 PathProgramCache]: Analyzing trace with hash 224556050, now seen corresponding path program 6 times [2021-07-13 23:27:44,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:44,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603376774] [2021-07-13 23:27:44,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:44,345 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 45 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:44,346 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:27:44,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603376774] [2021-07-13 23:27:44,346 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603376774] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:44,346 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [96291477] [2021-07-13 23:27:44,346 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:44,408 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-07-13 23:27:44,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:27:44,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-13 23:27:44,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:44,920 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 45 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:44,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [96291477] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:44,920 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:44,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 40 [2021-07-13 23:27:44,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366080643] [2021-07-13 23:27:44,921 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-13 23:27:44,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:44,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-13 23:27:44,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=1261, Unknown=0, NotChecked=0, Total=1560 [2021-07-13 23:27:44,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:44,922 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:44,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.325) internal successors, (93), 40 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-13 23:27:44,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:44,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:44,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:44,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:44,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:27:44,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:27:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:27:45,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:45,509 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:45,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:45,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1727502286, now seen corresponding path program 7 times [2021-07-13 23:27:45,510 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:45,510 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474421807] [2021-07-13 23:27:45,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 36 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:46,795 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:27:46,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474421807] [2021-07-13 23:27:46,795 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474421807] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:46,795 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407842965] [2021-07-13 23:27:46,795 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:46,854 WARN L261 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 90 conjunts are in the unsatisfiable core [2021-07-13 23:27:46,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:48,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:48,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:48,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:48,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:48,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:48,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:48,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:48,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:48,290 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-13 23:27:48,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:27:48,291 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-13 23:27:48,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 45 disjoint index pairs (out of 66 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 30 [2021-07-13 23:27:48,295 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:27:48,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:27:48,301 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:27:48,301 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:78, output treesize:5 [2021-07-13 23:27:48,341 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:48,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407842965] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:48,341 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:48,342 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 49 [2021-07-13 23:27:48,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142935211] [2021-07-13 23:27:48,342 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-07-13 23:27:48,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:48,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-07-13 23:27:48,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=2179, Unknown=0, NotChecked=0, Total=2352 [2021-07-13 23:27:48,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:48,350 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:48,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.204081632653061) internal successors, (108), 49 states have internal predecessors, (108), 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) [2021-07-13 23:27:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:27:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:27:48,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:52,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:52,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:52,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:52,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:52,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:27:52,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:27:52,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:27:52,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-13 23:27:52,285 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:52,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:52,285 INFO L82 PathProgramCache]: Analyzing trace with hash -442729078, now seen corresponding path program 8 times [2021-07-13 23:27:52,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:52,285 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820387633] [2021-07-13 23:27:52,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:52,593 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 100 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:52,594 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:27:52,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820387633] [2021-07-13 23:27:52,594 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820387633] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:52,594 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885932117] [2021-07-13 23:27:52,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:52,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-13 23:27:52,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:27:52,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-13 23:27:52,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:53,373 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 121 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:53,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885932117] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:53,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:53,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 49 [2021-07-13 23:27:53,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111970927] [2021-07-13 23:27:53,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-07-13 23:27:53,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:53,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-07-13 23:27:53,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=1934, Unknown=0, NotChecked=0, Total=2352 [2021-07-13 23:27:53,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:53,375 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:53,375 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.2857142857142856) internal successors, (112), 49 states have internal predecessors, (112), 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) [2021-07-13 23:27:53,375 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:53,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:53,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:53,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:53,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:27:53,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:27:53,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:27:53,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:54,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:54,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:54,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:27:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:27:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:27:54,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:27:54,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:54,753 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:54,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:54,753 INFO L82 PathProgramCache]: Analyzing trace with hash 69966718, now seen corresponding path program 9 times [2021-07-13 23:27:54,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:54,754 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277089719] [2021-07-13 23:27:54,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:55,154 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 172 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:55,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:27:55,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277089719] [2021-07-13 23:27:55,155 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277089719] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:55,155 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1489195090] [2021-07-13 23:27:55,155 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:55,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-07-13 23:27:55,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:27:55,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 31 conjunts are in the unsatisfiable core [2021-07-13 23:27:55,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:56,105 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 172 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:56,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1489195090] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:56,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:56,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 60 [2021-07-13 23:27:56,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399776075] [2021-07-13 23:27:56,106 INFO L462 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-07-13 23:27:56,106 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:56,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-07-13 23:27:56,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=2872, Unknown=0, NotChecked=0, Total=3540 [2021-07-13 23:27:56,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:56,108 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:56,108 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 2.216666666666667) internal successors, (133), 60 states have internal predecessors, (133), 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) [2021-07-13 23:27:56,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:56,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:56,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:56,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:56,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:27:56,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:27:56,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:27:56,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:27:56,108 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:56,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:27:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:27:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:27:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:27:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:27:56,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:27:56,724 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:56,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:56,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1160432262, now seen corresponding path program 10 times [2021-07-13 23:27:56,725 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:56,725 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153295236] [2021-07-13 23:27:56,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:27:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 159 proven. 237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:27:57,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:27:57,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153295236] [2021-07-13 23:27:57,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153295236] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:57,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651179355] [2021-07-13 23:27:57,131 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2021-07-13 23:27:57,173 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-13 23:27:57,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:27:57,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 31 conjunts are in the unsatisfiable core [2021-07-13 23:27:57,175 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:27:58,037 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 185 proven. 209 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 23:27:58,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651179355] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:27:58,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:27:58,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 32] total 64 [2021-07-13 23:27:58,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35853733] [2021-07-13 23:27:58,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-07-13 23:27:58,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:27:58,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-07-13 23:27:58,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=3498, Unknown=0, NotChecked=0, Total=4032 [2021-07-13 23:27:58,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:58,040 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:27:58,040 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.296875) internal successors, (147), 64 states have internal predecessors, (147), 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) [2021-07-13 23:27:58,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:58,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:58,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:58,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:58,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:27:58,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:27:58,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:27:58,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:27:58,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:27:58,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:27:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:27:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:27:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:27:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:27:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:27:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:27:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:27:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:27:59,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:27:59,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-07-13 23:27:59,864 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-13 23:27:59,865 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:27:59,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:27:59,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1821776586, now seen corresponding path program 11 times [2021-07-13 23:27:59,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:27:59,866 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570441486] [2021-07-13 23:27:59,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:27:59,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:28:02,253 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 144 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:28:02,253 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:28:02,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570441486] [2021-07-13 23:28:02,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570441486] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:28:02,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787777377] [2021-07-13 23:28:02,254 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:28:02,314 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2021-07-13 23:28:02,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:28:02,317 WARN L261 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 138 conjunts are in the unsatisfiable core [2021-07-13 23:28:02,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:28:05,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,747 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-13 23:28:05,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:05,759 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-13 23:28:05,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 120 disjoint index pairs (out of 153 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-07-13 23:28:05,763 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-13 23:28:05,767 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:28:05,769 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-13 23:28:05,769 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:114, output treesize:5 [2021-07-13 23:28:05,822 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 456 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:28:05,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787777377] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:28:05,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:28:05,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38] total 73 [2021-07-13 23:28:05,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809091968] [2021-07-13 23:28:05,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 73 states [2021-07-13 23:28:05,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:28:05,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-07-13 23:28:05,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=4948, Unknown=0, NotChecked=0, Total=5256 [2021-07-13 23:28:05,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:28:05,824 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:28:05,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 73 states, 73 states have (on average 2.136986301369863) internal successors, (156), 73 states have internal predecessors, (156), 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) [2021-07-13 23:28:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:28:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:28:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:28:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:28:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:28:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:28:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:28:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:28:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:28:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-07-13 23:28:05,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:28:09,858 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2021-07-13 23:28:14,280 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 83 [2021-07-13 23:28:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:28:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:28:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:28:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:28:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:28:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:28:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:28:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:28:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:28:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-07-13 23:28:14,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-07-13 23:28:14,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-13 23:28:14,733 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:28:14,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:28:14,734 INFO L82 PathProgramCache]: Analyzing trace with hash -1368893710, now seen corresponding path program 12 times [2021-07-13 23:28:14,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:28:14,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779419868] [2021-07-13 23:28:14,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:28:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:28:15,251 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 256 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:28:15,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:28:15,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779419868] [2021-07-13 23:28:15,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779419868] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:28:15,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915890845] [2021-07-13 23:28:15,251 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:28:15,312 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-07-13 23:28:15,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:28:15,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 38 conjunts are in the unsatisfiable core [2021-07-13 23:28:15,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:28:16,632 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 289 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:28:16,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915890845] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:28:16,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:28:16,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 73 [2021-07-13 23:28:16,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420833301] [2021-07-13 23:28:16,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 73 states [2021-07-13 23:28:16,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:28:16,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-07-13 23:28:16,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=940, Invalid=4316, Unknown=0, NotChecked=0, Total=5256 [2021-07-13 23:28:16,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:28:16,635 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:28:16,635 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 73 states, 73 states have (on average 2.191780821917808) internal successors, (160), 73 states have internal predecessors, (160), 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) [2021-07-13 23:28:16,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:28:16,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:28:16,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:28:16,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:28:16,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:28:16,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:28:16,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:28:16,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:28:16,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:28:16,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-07-13 23:28:16,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-07-13 23:28:16,636 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:28:18,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:28:18,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:28:18,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:28:18,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:28:18,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:28:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:28:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:28:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:28:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:28:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-07-13 23:28:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-07-13 23:28:18,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-07-13 23:28:19,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-13 23:28:19,049 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:28:19,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:28:19,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1335163110, now seen corresponding path program 13 times [2021-07-13 23:28:19,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:28:19,049 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117104117] [2021-07-13 23:28:19,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:28:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:28:19,849 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 364 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:28:19,849 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:28:19,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117104117] [2021-07-13 23:28:19,849 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117104117] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:28:19,849 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770732551] [2021-07-13 23:28:19,849 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:28:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:28:19,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 39 conjunts are in the unsatisfiable core [2021-07-13 23:28:19,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:28:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 394 proven. 324 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-13 23:28:21,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770732551] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:28:21,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:28:21,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 40] total 82 [2021-07-13 23:28:21,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306363026] [2021-07-13 23:28:21,311 INFO L462 AbstractCegarLoop]: Interpolant automaton has 82 states [2021-07-13 23:28:21,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:28:21,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-07-13 23:28:21,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=867, Invalid=5775, Unknown=0, NotChecked=0, Total=6642 [2021-07-13 23:28:21,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:28:21,313 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:28:21,313 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 82 states, 82 states have (on average 2.231707317073171) internal successors, (183), 82 states have internal predecessors, (183), 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) [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-07-13 23:28:21,313 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-07-13 23:28:21,314 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:28:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:28:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:28:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:28:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:28:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:28:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:28:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:28:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:28:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:28:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-07-13 23:28:23,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-07-13 23:28:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-07-13 23:28:23,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-13 23:28:23,500 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:28:23,501 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:28:23,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:28:23,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1352646370, now seen corresponding path program 14 times [2021-07-13 23:28:23,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:28:23,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170422110] [2021-07-13 23:28:23,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:28:23,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:28:24,260 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 345 proven. 459 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:28:24,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:28:24,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170422110] [2021-07-13 23:28:24,261 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170422110] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:28:24,261 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1612560171] [2021-07-13 23:28:24,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:28:24,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-13 23:28:24,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:28:24,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-13 23:28:24,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:28:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 383 proven. 419 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-13 23:28:25,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1612560171] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:28:25,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-13 23:28:25,860 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 44] total 88 [2021-07-13 23:28:25,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323120883] [2021-07-13 23:28:25,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 88 states [2021-07-13 23:28:25,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-13 23:28:25,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-07-13 23:28:25,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=996, Invalid=6660, Unknown=0, NotChecked=0, Total=7656 [2021-07-13 23:28:25,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:28:25,863 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-13 23:28:25,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 88 states, 88 states have (on average 2.215909090909091) internal successors, (195), 88 states have internal predecessors, (195), 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) [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-13 23:28:25,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-13 23:28:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-13 23:28:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-13 23:28:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-13 23:28:28,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-13 23:28:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-13 23:28:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-13 23:28:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-13 23:28:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-13 23:28:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-13 23:28:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-07-13 23:28:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-07-13 23:28:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-07-13 23:28:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-13 23:28:28,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-07-13 23:28:28,589 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:28:28,590 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-13 23:28:28,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-13 23:28:28,590 INFO L82 PathProgramCache]: Analyzing trace with hash -984614242, now seen corresponding path program 15 times [2021-07-13 23:28:28,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-13 23:28:28,590 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501160453] [2021-07-13 23:28:28,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-13 23:28:28,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-13 23:28:32,879 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 324 proven. 564 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-13 23:28:32,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-13 23:28:32,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501160453] [2021-07-13 23:28:32,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501160453] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-13 23:28:32,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045037452] [2021-07-13 23:28:32,879 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-13 23:28:32,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-07-13 23:28:32,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-13 23:28:32,968 WARN L261 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 191 conjunts are in the unsatisfiable core [2021-07-13 23:28:32,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-13 23:28:41,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-13 23:28:41,990 INFO L244 Elim1Store]: Index analysis took 266 ms [2021-07-13 23:28:42,631 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2021-07-13 23:28:42,631 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-13 23:28:42,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 33 select indices, 33 select index equivalence classes, 462 disjoint index pairs (out of 528 index pairs), introduced 33 new quantified variables, introduced 66 case distinctions, treesize of input 164 treesize of output 732 [2021-07-13 23:28:43,674 WARN L205 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 501 DAG size of output: 532 [2021-07-13 23:28:44,149 WARN L205 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 501 DAG size of output: 532 [2021-07-13 23:28:44,767 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 559 [2021-07-13 23:28:49,663 WARN L205 SmtUtils]: Spent 4.84 s on a formula simplification. DAG size of input: 1645 DAG size of output: 1758 [2021-07-13 23:28:54,830 WARN L205 SmtUtils]: Spent 5.08 s on a formula simplification. DAG size of input: 1667 DAG size of output: 1781 [2021-07-13 23:29:32,402 WARN L205 SmtUtils]: Spent 37.36 s on a formula simplification. DAG size of input: 6528 DAG size of output: 6051 [2021-07-13 23:30:12,497 WARN L205 SmtUtils]: Spent 39.81 s on a formula simplification. DAG size of input: 6540 DAG size of output: 6064 [2021-07-13 23:31:56,969 WARN L205 SmtUtils]: Spent 1.73 m on a formula simplification. DAG size of input: 10102 DAG size of output: 9955 [2021-07-13 23:33:45,722 WARN L205 SmtUtils]: Spent 1.81 m on a formula simplification. DAG size of input: 10106 DAG size of output: 9959 [2021-07-13 23:36:57,368 WARN L205 SmtUtils]: Spent 3.18 m on a formula simplification. DAG size of input: 9806 DAG size of output: 9339 [2021-07-13 23:40:25,339 WARN L205 SmtUtils]: Spent 3.46 m on a formula simplification. DAG size of input: 9824 DAG size of output: 9355 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown