/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2abb09bbbae98a04ae2fcc735832bfdba44f6fbc-2abb09b [2021-06-06 23:25:40,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-06 23:25:40,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-06 23:25:40,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-06 23:25:40,110 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf [2021-06-06 23:25:40,136 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-06 23:25:40,137 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-06 23:25:40,137 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-06 23:25:40,137 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-06 23:25:40,139 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-06 23:25:40,139 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-06 23:25:40,139 INFO L138 SettingsManager]: * Use SBE=true [2021-06-06 23:25:40,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-06 23:25:40,140 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-06 23:25:40,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-06 23:25:40,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-06 23:25:40,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-06 23:25:40,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-06 23:25:40,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-06 23:25:40,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-06 23:25:40,141 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-06 23:25:40,141 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-06 23:25:40,141 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-06 23:25:40,141 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-06 23:25:40,142 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-06 23:25:40,142 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-06 23:25:40,142 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-06 23:25:40,142 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-06 23:25:40,142 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 23:25:40,142 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-06 23:25:40,142 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-06 23:25:40,142 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-06 23:25:40,142 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-06 23:25:40,142 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-06 23:25:40,143 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-06 23:25:40,143 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-06 23:25:40,143 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-06 23:25:40,143 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-06 23:25:40,143 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-06 23:25:40,143 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-06 23:25:40,143 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-06 23:25:40,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-06 23:25:40,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-06 23:25:40,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-06 23:25:40,430 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-06 23:25:40,431 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-06 23:25:40,432 INFO L432 ainManager$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 [2021-06-06 23:25:40,432 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2021-06-06 23:25:40,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-06 23:25:40,452 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-06 23:25:40,453 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-06 23:25:40,453 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-06 23:25:40,453 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-06 23:25:40,462 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 06.06 11:25:40" (1/1) ... [2021-06-06 23:25:40,469 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 06.06 11:25:40" (1/1) ... [2021-06-06 23:25:40,474 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-06 23:25:40,475 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-06 23:25:40,475 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-06 23:25:40,475 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-06 23:25:40,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:40" (1/1) ... [2021-06-06 23:25:40,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:40" (1/1) ... [2021-06-06 23:25:40,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:40" (1/1) ... [2021-06-06 23:25:40,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:40" (1/1) ... [2021-06-06 23:25:40,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:40" (1/1) ... [2021-06-06 23:25:40,489 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:40" (1/1) ... [2021-06-06 23:25:40,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:40" (1/1) ... [2021-06-06 23:25:40,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-06 23:25:40,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-06 23:25:40,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-06 23:25:40,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-06 23:25:40,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-06 23:25:40,546 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-06 23:25:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-06 23:25:40,546 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-06 23:25:40,546 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-06 23:25:40,546 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-06 23:25:40,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-06 23:25:40,547 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-06 23:25:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-06 23:25:40,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-06 23:25:40,547 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-06 23:25:40,547 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-06 23:25:40,547 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-06 23:25:40,548 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-06 23:25:40,720 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-06 23:25:40,720 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-06 23:25:40,721 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 11:25:40 BoogieIcfgContainer [2021-06-06 23:25:40,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-06 23:25:40,722 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-06 23:25:40,722 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-06 23:25:40,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-06 23:25:40,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 06.06 11:25:40" (1/2) ... [2021-06-06 23:25:40,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a6c2785 and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.06 11:25:40, skipping insertion in model container [2021-06-06 23:25:40,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.06 11:25:40" (2/2) ... [2021-06-06 23:25:40,726 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2021-06-06 23:25:40,730 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-06 23:25:40,730 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-06 23:25:40,730 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-06 23:25:40,731 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-06 23:25:40,771 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-06 23:25:40,790 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-06 23:25:40,843 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-06 23:25:40,843 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-06 23:25:40,843 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-06 23:25:40,843 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-06 23:25:40,844 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-06 23:25:40,844 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-06 23:25:40,844 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-06 23:25:40,844 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-06 23:25:40,890 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:40,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:40,894 INFO L82 PathProgramCache]: Analyzing trace with hash -1550547830, now seen corresponding path program 1 times [2021-06-06 23:25:40,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:40,900 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378186965] [2021-06-06 23:25:40,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:41,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:41,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:41,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378186965] [2021-06-06 23:25:41,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378186965] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 23:25:41,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 23:25:41,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 23:25:41,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78114810] [2021-06-06 23:25:41,079 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-06 23:25:41,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:41,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-06 23:25:41,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-06 23:25:41,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:41,088 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:41,090 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:41,090 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:41,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:41,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-06 23:25:41,146 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:41,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:41,147 INFO L82 PathProgramCache]: Analyzing trace with hash -769335896, now seen corresponding path program 1 times [2021-06-06 23:25:41,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:41,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577336645] [2021-06-06 23:25:41,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:41,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:41,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577336645] [2021-06-06 23:25:41,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577336645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-06 23:25:41,174 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-06 23:25:41,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-06 23:25:41,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962420879] [2021-06-06 23:25:41,176 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-06 23:25:41,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:41,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-06 23:25:41,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-06 23:25:41,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:41,177 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:41,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:41,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:41,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:41,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:41,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:41,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-06 23:25:41,205 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:41,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:41,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1369203574, now seen corresponding path program 1 times [2021-06-06 23:25:41,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:41,206 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902620898] [2021-06-06 23:25:41,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:41,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:41,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:41,244 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:41,244 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902620898] [2021-06-06 23:25:41,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902620898] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:41,245 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250937115] [2021-06-06 23:25:41,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:41,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-06 23:25:41,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:41,421 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:41,422 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250937115] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:41,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:41,422 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-06 23:25:41,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863765318] [2021-06-06 23:25:41,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-06 23:25:41,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:41,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-06 23:25:41,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-06 23:25:41,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:41,426 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:41,426 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) [2021-06-06 23:25:41,426 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:41,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:41,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:41,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:41,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:41,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:41,728 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:41,729 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:41,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:41,729 INFO L82 PathProgramCache]: Analyzing trace with hash -54118744, now seen corresponding path program 2 times [2021-06-06 23:25:41,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:41,730 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037185667] [2021-06-06 23:25:41,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:41,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:42,058 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:42,059 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:42,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037185667] [2021-06-06 23:25:42,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037185667] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:42,059 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135370682] [2021-06-06 23:25:42,059 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:42,099 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 23:25:42,099 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:42,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 26 conjunts are in the unsatisfiable core [2021-06-06 23:25:42,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:42,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:42,463 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:42,464 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 [2021-06-06 23:25:42,471 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 23:25:42,486 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:42,519 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:25:42,520 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:120 [2021-06-06 23:25:42,716 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:42,716 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135370682] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:42,720 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:42,720 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-06-06 23:25:42,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340236673] [2021-06-06 23:25:42,721 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-06 23:25:42,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:42,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-06 23:25:42,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=287, Unknown=0, NotChecked=0, Total=342 [2021-06-06 23:25:42,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:42,723 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:42,723 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) [2021-06-06 23:25:42,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:42,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:42,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:42,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:43,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:43,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:43,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:43,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:43,622 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:43,622 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:43,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:43,622 INFO L82 PathProgramCache]: Analyzing trace with hash 102177892, now seen corresponding path program 3 times [2021-06-06 23:25:43,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:43,623 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731636239] [2021-06-06 23:25:43,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:43,682 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:43,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:43,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731636239] [2021-06-06 23:25:43,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731636239] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:43,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578026755] [2021-06-06 23:25:43,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:43,713 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-06-06 23:25:43,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:43,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-06-06 23:25:43,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:43,894 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578026755] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:43,894 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:43,894 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-06-06 23:25:43,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517796319] [2021-06-06 23:25:43,894 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-06 23:25:43,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:43,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-06 23:25:43,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2021-06-06 23:25:43,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:43,895 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:43,895 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.6842105263157894) internal successors, (51), 19 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:43,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:43,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:43,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:43,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:43,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:44,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:44,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:44,427 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:44,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:44,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1968974090, now seen corresponding path program 4 times [2021-06-06 23:25:44,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:44,427 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956566709] [2021-06-06 23:25:44,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:44,520 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:44,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:44,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956566709] [2021-06-06 23:25:44,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956566709] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:44,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048433907] [2021-06-06 23:25:44,520 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:44,562 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 23:25:44,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:44,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 11 conjunts are in the unsatisfiable core [2021-06-06 23:25:44,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:44,718 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:44,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1048433907] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:44,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:44,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 17 [2021-06-06 23:25:44,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459652846] [2021-06-06 23:25:44,720 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-06 23:25:44,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:44,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-06 23:25:44,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2021-06-06 23:25:44,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:44,723 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:44,723 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:44,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:44,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:44,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:44,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:44,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:44,724 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:44,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:44,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:44,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:44,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:44,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:44,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:25:45,052 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-06-06 23:25:45,053 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:45,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:45,053 INFO L82 PathProgramCache]: Analyzing trace with hash 100828712, now seen corresponding path program 5 times [2021-06-06 23:25:45,053 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:45,054 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579071391] [2021-06-06 23:25:45,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:45,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:45,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:45,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579071391] [2021-06-06 23:25:45,527 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579071391] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:45,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69561498] [2021-06-06 23:25:45,527 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:45,573 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-06-06 23:25:45,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:45,574 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2021-06-06 23:25:45,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:46,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:46,318 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 23:25:46,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:46,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:46,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:46,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 19 [2021-06-06 23:25:46,323 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 23:25:46,328 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:46,330 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:25:46,333 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:50, output treesize:5 [2021-06-06 23:25:46,368 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:46,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69561498] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:46,368 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:46,368 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 31 [2021-06-06 23:25:46,368 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24739229] [2021-06-06 23:25:46,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 31 states [2021-06-06 23:25:46,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:46,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-06-06 23:25:46,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=847, Unknown=0, NotChecked=0, Total=930 [2021-06-06 23:25:46,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:46,369 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:46,369 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 31 states, 31 states have (on average 2.161290322580645) internal successors, (67), 31 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:46,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:46,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:46,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:46,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:46,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:46,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:25:46,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:47,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:25:47,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:47,754 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:47,754 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:47,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:47,754 INFO L82 PathProgramCache]: Analyzing trace with hash 109450182, now seen corresponding path program 6 times [2021-06-06 23:25:47,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:47,755 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459534634] [2021-06-06 23:25:47,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:47,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:48,049 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:48,049 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:48,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459534634] [2021-06-06 23:25:48,049 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459534634] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:48,049 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449368543] [2021-06-06 23:25:48,049 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:48,079 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-06-06 23:25:48,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:48,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-06 23:25:48,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:48,372 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:48,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449368543] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:48,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:48,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2021-06-06 23:25:48,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38097230] [2021-06-06 23:25:48,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-06-06 23:25:48,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:48,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-06-06 23:25:48,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=656, Unknown=0, NotChecked=0, Total=812 [2021-06-06 23:25:48,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:48,374 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:48,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.4482758620689653) internal successors, (71), 29 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:48,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:48,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:48,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:48,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:48,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:48,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:25:48,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:48,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:25:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:49,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 23:25:49,500 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-06 23:25:49,501 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:49,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:49,501 INFO L82 PathProgramCache]: Analyzing trace with hash -661749494, now seen corresponding path program 7 times [2021-06-06 23:25:49,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:49,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147162121] [2021-06-06 23:25:49,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:49,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:49,601 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 31 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:49,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:49,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147162121] [2021-06-06 23:25:49,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147162121] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:49,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787304399] [2021-06-06 23:25:49,602 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:49,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-06 23:25:49,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:49,792 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 31 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-06 23:25:49,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787304399] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:49,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:49,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 23 [2021-06-06 23:25:49,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922280731] [2021-06-06 23:25:49,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-06-06 23:25:49,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:49,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-06-06 23:25:49,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2021-06-06 23:25:49,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:49,794 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:49,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 2.739130434782609) internal successors, (63), 23 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:49,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:49,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:49,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:49,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:49,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:49,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:25:49,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:49,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 23:25:49,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:49,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:25:49,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:49,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 23:25:49,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 23:25:50,173 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-06 23:25:50,173 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:50,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:50,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1618157528, now seen corresponding path program 8 times [2021-06-06 23:25:50,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:50,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636312944] [2021-06-06 23:25:50,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:51,090 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:51,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:51,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636312944] [2021-06-06 23:25:51,091 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636312944] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:51,091 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042401826] [2021-06-06 23:25:51,091 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:51,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-06 23:25:51,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:51,145 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 66 conjunts are in the unsatisfiable core [2021-06-06 23:25:51,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:51,979 INFO L354 Elim1Store]: treesize reduction 217, result has 3.6 percent of original size [2021-06-06 23:25:51,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 15 new quantified variables, introduced 28 case distinctions, treesize of input 168 treesize of output 106 [2021-06-06 23:25:51,982 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 23:25:51,989 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:51,990 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:25:51,990 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:168, output treesize:17 [2021-06-06 23:25:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:52,094 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042401826] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:52,094 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:52,094 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20] total 40 [2021-06-06 23:25:52,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038213651] [2021-06-06 23:25:52,094 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-06-06 23:25:52,094 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:52,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-06-06 23:25:52,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=1424, Unknown=0, NotChecked=0, Total=1560 [2021-06-06 23:25:52,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:52,095 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:52,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.15) internal successors, (86), 40 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:52,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:52,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:52,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:52,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:52,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:52,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:25:52,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:52,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 23:25:52,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 23:25:52,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:54,332 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-06-06 23:25:54,502 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 88 [2021-06-06 23:25:54,662 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 60 [2021-06-06 23:25:54,795 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2021-06-06 23:25:54,954 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 68 [2021-06-06 23:25:55,131 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2021-06-06 23:25:56,719 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 96 [2021-06-06 23:25:56,892 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 93 [2021-06-06 23:25:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:25:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 23:25:57,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 23:25:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-06-06 23:25:57,329 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-06 23:25:57,329 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:25:57,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:25:57,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1546043736, now seen corresponding path program 9 times [2021-06-06 23:25:57,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:25:57,330 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028031502] [2021-06-06 23:25:57,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:25:57,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:25:58,176 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 12 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:58,176 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:25:58,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028031502] [2021-06-06 23:25:58,176 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028031502] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:58,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872157489] [2021-06-06 23:25:58,176 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:25:58,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-06-06 23:25:58,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:25:58,225 WARN L261 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 79 conjunts are in the unsatisfiable core [2021-06-06 23:25:58,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:25:59,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 23:25:59,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,469 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 23:25:59,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,484 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 23:25:59,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:25:59,526 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:25:59,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 56 disjoint index pairs (out of 105 index pairs), introduced 12 new quantified variables, introduced 10 case distinctions, treesize of input 75 treesize of output 135 [2021-06-06 23:25:59,568 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-06 23:25:59,591 INFO L628 ElimStorePlain]: treesize reduction 4, result has 90.2 percent of original size [2021-06-06 23:25:59,596 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:25:59,596 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:101, output treesize:35 [2021-06-06 23:25:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:25:59,739 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872157489] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:25:59,739 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:25:59,739 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 26] total 46 [2021-06-06 23:25:59,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378341299] [2021-06-06 23:25:59,739 INFO L462 AbstractCegarLoop]: Interpolant automaton has 46 states [2021-06-06 23:25:59,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:25:59,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-06-06 23:25:59,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1859, Unknown=0, NotChecked=0, Total=2070 [2021-06-06 23:25:59,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:25:59,740 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:25:59,740 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 46 states, 46 states have (on average 2.0) internal successors, (92), 46 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:25:59,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:25:59,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:25:59,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:25:59,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:25:59,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:25:59,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:25:59,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:25:59,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 23:25:59,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 23:25:59,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-06-06 23:25:59,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:01,405 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100 [2021-06-06 23:26:01,665 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 110 [2021-06-06 23:26:01,862 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 81 [2021-06-06 23:26:02,185 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 92 [2021-06-06 23:26:02,385 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 100 [2021-06-06 23:26:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:26:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:26:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:26:04,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:04,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 23:26:04,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 23:26:04,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-06-06 23:26:04,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:04,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:26:04,738 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:26:04,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:26:04,738 INFO L82 PathProgramCache]: Analyzing trace with hash 543079976, now seen corresponding path program 10 times [2021-06-06 23:26:04,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:26:04,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507771514] [2021-06-06 23:26:04,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:26:04,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:26:05,857 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 20 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:05,858 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:26:05,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507771514] [2021-06-06 23:26:05,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507771514] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:05,858 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1274673905] [2021-06-06 23:26:05,858 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:26:05,894 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-06 23:26:05,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:26:05,895 WARN L261 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 82 conjunts are in the unsatisfiable core [2021-06-06 23:26:05,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:26:07,161 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-06 23:26:07,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:07,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:07,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:07,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:07,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:07,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:07,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:07,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:07,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 27 [2021-06-06 23:26:07,169 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-06 23:26:07,174 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:26:07,175 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:26:07,175 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:72, output treesize:5 [2021-06-06 23:26:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:07,214 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1274673905] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:07,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:26:07,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25] total 47 [2021-06-06 23:26:07,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590661973] [2021-06-06 23:26:07,215 INFO L462 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-06-06 23:26:07,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:26:07,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-06-06 23:26:07,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=1953, Unknown=0, NotChecked=0, Total=2162 [2021-06-06 23:26:07,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:07,217 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:26:07,218 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 2.127659574468085) internal successors, (100), 47 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:07,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:09,630 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 76 [2021-06-06 23:26:09,823 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 72 [2021-06-06 23:26:10,042 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 93 [2021-06-06 23:26:10,256 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 88 [2021-06-06 23:26:10,448 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 92 [2021-06-06 23:26:10,645 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 98 [2021-06-06 23:26:10,799 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 66 [2021-06-06 23:26:10,958 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2021-06-06 23:26:11,158 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 74 [2021-06-06 23:26:11,350 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 95 [2021-06-06 23:26:13,388 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 106 [2021-06-06 23:26:13,581 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 103 [2021-06-06 23:26:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:26:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:26:13,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:26:13,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:13,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 23:26:13,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 23:26:13,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-06-06 23:26:13,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:13,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-06-06 23:26:14,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-06-06 23:26:14,048 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:26:14,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:26:14,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1341088088, now seen corresponding path program 11 times [2021-06-06 23:26:14,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:26:14,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23433801] [2021-06-06 23:26:14,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:26:14,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:26:15,259 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 49 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:15,260 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:26:15,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23433801] [2021-06-06 23:26:15,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23433801] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:15,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679609546] [2021-06-06 23:26:15,260 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:26:15,302 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-06-06 23:26:15,302 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:26:15,303 WARN L261 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 90 conjunts are in the unsatisfiable core [2021-06-06 23:26:15,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:26:16,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:16,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:16,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:16,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:16,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:16,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:16,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:16,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:16,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:16,673 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:26:16,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 45 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 10 case distinctions, treesize of input 69 treesize of output 109 [2021-06-06 23:26:16,683 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-06-06 23:26:16,693 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:26:16,698 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-06 23:26:16,698 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:86, output treesize:43 [2021-06-06 23:26:16,857 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:16,858 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679609546] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:16,858 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-06 23:26:16,858 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 27] total 53 [2021-06-06 23:26:16,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587030525] [2021-06-06 23:26:16,858 INFO L462 AbstractCegarLoop]: Interpolant automaton has 53 states [2021-06-06 23:26:16,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-06 23:26:16,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-06-06 23:26:16,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=2418, Unknown=0, NotChecked=0, Total=2756 [2021-06-06 23:26:16,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:16,859 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-06 23:26:16,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 53 states, 53 states have (on average 2.0754716981132075) internal successors, (110), 53 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-06 23:26:16,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:16,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:16,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:16,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:26:16,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:26:16,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:26:16,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:16,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-06-06 23:26:16,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-06-06 23:26:16,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-06-06 23:26:16,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:16,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2021-06-06 23:26:16,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-06 23:26:19,124 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 123 [2021-06-06 23:26:19,483 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2021-06-06 23:26:19,720 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 114 [2021-06-06 23:26:19,965 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 103 [2021-06-06 23:26:23,472 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2021-06-06 23:26:23,633 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2021-06-06 23:26:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-06 23:26:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-06 23:26:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-06 23:26:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-06 23:26:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-06 23:26:23,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-06 23:26:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-06 23:26:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-06 23:26:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-06 23:26:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-06-06 23:26:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-06-06 23:26:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-06-06 23:26:23,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-06-06 23:26:23,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-06-06 23:26:23,885 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-06 23:26:23,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-06 23:26:23,886 INFO L82 PathProgramCache]: Analyzing trace with hash -699260888, now seen corresponding path program 12 times [2021-06-06 23:26:23,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-06 23:26:23,886 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287260598] [2021-06-06 23:26:23,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-06 23:26:23,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-06 23:26:25,113 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 32 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-06 23:26:25,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-06 23:26:25,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287260598] [2021-06-06 23:26:25,113 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287260598] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-06 23:26:25,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498304119] [2021-06-06 23:26:25,113 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-06 23:26:25,159 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-06-06 23:26:25,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-06 23:26:25,161 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 102 conjunts are in the unsatisfiable core [2021-06-06 23:26:25,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-06 23:26:26,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-06 23:26:26,975 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-06-06 23:26:26,975 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-06 23:26:26,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 67 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 38 case distinctions, treesize of input 79 treesize of output 369 [2021-06-06 23:26:27,559 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 872 DAG size of output: 687 [2021-06-06 23:26:27,919 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 884 DAG size of output: 699 [2021-06-06 23:26:29,410 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 2200 DAG size of output: 1535 [2021-06-06 23:26:30,956 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 2212 DAG size of output: 1547 [2021-06-06 23:26:36,849 WARN L205 SmtUtils]: Spent 5.53 s on a formula simplification. DAG size of input: 4654 DAG size of output: 3552 [2021-06-06 23:26:42,362 WARN L205 SmtUtils]: Spent 5.48 s on a formula simplification. DAG size of input: 4666 DAG size of output: 3564 [2021-06-06 23:27:10,535 WARN L205 SmtUtils]: Spent 27.40 s on a formula simplification. DAG size of input: 10608 DAG size of output: 9217 [2021-06-06 23:27:52,754 WARN L205 SmtUtils]: Spent 42.14 s on a formula simplification. DAG size of input: 10745 DAG size of output: 9326 [2021-06-06 23:28:48,265 WARN L205 SmtUtils]: Spent 55.45 s on a formula simplification. DAG size of input: 6874 DAG size of output: 8067 [2021-06-06 23:29:05,381 WARN L205 SmtUtils]: Spent 17.07 s on a formula simplification. DAG size of input: 6810 DAG size of output: 6810 [2021-06-06 23:30:21,184 WARN L205 SmtUtils]: Spent 1.26 m on a formula simplification. DAG size of input: 6812 DAG size of output: 8353 [2021-06-06 23:30:29,506 WARN L205 SmtUtils]: Spent 8.27 s on a formula simplification. DAG size of input: 2214 DAG size of output: 2784 [2021-06-06 23:30:29,948 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 311 [2021-06-06 23:30:30,332 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 731 DAG size of output: 676 [2021-06-06 23:30:30,448 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 369 [2021-06-06 23:30:31,234 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 586 DAG size of output: 497 [2021-06-06 23:30:31,732 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 865 DAG size of output: 691 [2021-06-06 23:30:32,042 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 248 DAG size of output: 339 [2021-06-06 23:30:34,291 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 329 [2021-06-06 23:30:35,688 WARN L205 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 575 DAG size of output: 748 [2021-06-06 23:30:36,182 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 570 DAG size of output: 570 [2021-06-06 23:30:37,405 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 614 [2021-06-06 23:30:37,707 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 519 DAG size of output: 519 [2021-06-06 23:30:38,301 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 357 [2021-06-06 23:30:38,463 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 273 [2021-06-06 23:30:38,877 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 534 DAG size of output: 493 [2021-06-06 23:30:39,173 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 605 DAG size of output: 538 [2021-06-06 23:30:40,349 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 528 [2021-06-06 23:30:41,204 WARN L205 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 1368 DAG size of output: 1131 [2021-06-06 23:30:42,567 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 1699 DAG size of output: 1383 [2021-06-06 23:30:44,687 WARN L205 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 1830 DAG size of output: 1500 [2021-06-06 23:30:52,731 WARN L205 SmtUtils]: Spent 8.03 s on a formula simplification. DAG size of input: 5622 DAG size of output: 4247 [2021-06-06 23:30:53,241 WARN L205 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 999 DAG size of output: 999 [2021-06-06 23:30:53,897 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 463 DAG size of output: 442 [2021-06-06 23:30:54,348 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 488 DAG size of output: 478 [2021-06-06 23:30:54,749 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 918 DAG size of output: 880 [2021-06-06 23:30:55,416 WARN L205 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 806 DAG size of output: 964 [2021-06-06 23:30:55,867 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 479 DAG size of output: 416 [2021-06-06 23:30:56,766 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 658 DAG size of output: 627 [2021-06-06 23:30:57,588 WARN L205 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 1781 DAG size of output: 1616 [2021-06-06 23:30:58,983 WARN L205 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 2427 DAG size of output: 2232 [2021-06-06 23:31:00,516 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 1842 DAG size of output: 1842 [2021-06-06 23:31:01,598 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 1548 DAG size of output: 1548 [2021-06-06 23:31:01,903 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 558 DAG size of output: 558 [2021-06-06 23:31:02,131 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 300 [2021-06-06 23:31:02,864 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 485 DAG size of output: 401 [2021-06-06 23:31:03,096 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 594 DAG size of output: 467 [2021-06-06 23:31:03,474 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 667 DAG size of output: 540 [2021-06-06 23:31:03,639 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 389 [2021-06-06 23:31:04,625 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 666 DAG size of output: 463 [2021-06-06 23:31:05,265 WARN L205 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 1138 DAG size of output: 859 [2021-06-06 23:31:05,846 WARN L205 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 1133 DAG size of output: 1133 [2021-06-06 23:31:06,048 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 483 [2021-06-06 23:31:06,662 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 699 DAG size of output: 607 [2021-06-06 23:31:06,950 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 697 DAG size of output: 697 [2021-06-06 23:31:07,078 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 424 DAG size of output: 424 [2021-06-06 23:31:08,196 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 685 DAG size of output: 575 [2021-06-06 23:31:08,875 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 885 DAG size of output: 768 [2021-06-06 23:31:09,338 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 1421 DAG size of output: 1206 [2021-06-06 23:31:10,021 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 774 DAG size of output: 676 [2021-06-06 23:31:11,038 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 2423 DAG size of output: 2080 [2021-06-06 23:31:13,016 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 3302 DAG size of output: 2757 [2021-06-06 23:31:13,381 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 491 DAG size of output: 557 [2021-06-06 23:31:13,647 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 457 DAG size of output: 545 [2021-06-06 23:31:13,861 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 435 [2021-06-06 23:31:14,578 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 630 DAG size of output: 583 [2021-06-06 23:31:14,807 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 706 DAG size of output: 653 [2021-06-06 23:31:15,204 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 945 DAG size of output: 887 [2021-06-06 23:31:15,871 WARN L205 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 1207 DAG size of output: 1132 [2021-06-06 23:31:19,054 WARN L205 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 4130 DAG size of output: 3544 [2021-06-06 23:31:36,004 WARN L205 SmtUtils]: Spent 16.92 s on a formula simplification. DAG size of input: 2909 DAG size of output: 3499 [2021-06-06 23:31:39,747 WARN L205 SmtUtils]: Spent 3.73 s on a formula simplification. DAG size of input: 2903 DAG size of output: 2903 [2021-06-06 23:31:41,633 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1980 DAG size of output: 1980 [2021-06-06 23:31:44,475 WARN L205 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 1639 DAG size of output: 2132 [2021-06-06 23:31:44,590 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 300 DAG size of output: 376 [2021-06-06 23:31:45,179 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 280 [2021-06-06 23:31:45,299 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 285 [2021-06-06 23:31:46,119 WARN L205 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 719 DAG size of output: 879 [2021-06-06 23:31:46,780 WARN L205 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 716 DAG size of output: 810 [2021-06-06 23:31:48,242 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 2021 DAG size of output: 1899 [2021-06-06 23:31:49,440 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 2243 DAG size of output: 2097 [2021-06-06 23:31:52,863 WARN L205 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 4179 DAG size of output: 3737 [2021-06-06 23:31:53,131 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 622 DAG size of output: 622 [2021-06-06 23:31:53,414 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 418 DAG size of output: 499 [2021-06-06 23:31:53,647 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 445 [2021-06-06 23:31:54,462 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 838 DAG size of output: 798 [2021-06-06 23:31:55,007 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 1079 DAG size of output: 1041 [2021-06-06 23:31:55,499 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 1247 DAG size of output: 1205 [2021-06-06 23:31:56,250 WARN L205 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 1348 DAG size of output: 1306 [2021-06-06 23:31:56,432 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 402 [2021-06-06 23:31:56,862 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 307 [2021-06-06 23:31:57,337 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 644 DAG size of output: 621 [2021-06-06 23:31:57,567 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 750 DAG size of output: 725 [2021-06-06 23:31:57,856 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 917 DAG size of output: 879 [2021-06-06 23:31:58,289 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 1017 DAG size of output: 976 [2021-06-06 23:31:59,742 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 2095 DAG size of output: 2006 [2021-06-06 23:32:05,446 WARN L205 SmtUtils]: Spent 5.69 s on a formula simplification. DAG size of input: 5605 DAG size of output: 5122 [2021-06-06 23:32:07,651 WARN L205 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 1302 DAG size of output: 1302 [2021-06-06 23:32:09,324 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 940 DAG size of output: 940 [2021-06-06 23:32:09,868 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 390 [2021-06-06 23:32:10,535 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 650 DAG size of output: 635 [2021-06-06 23:32:10,816 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 742 DAG size of output: 714 [2021-06-06 23:32:11,303 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 1000 DAG size of output: 964 [2021-06-06 23:32:12,256 WARN L205 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 773 DAG size of output: 942 [2021-06-06 23:32:12,725 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 789 [2021-06-06 23:32:13,372 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 1133 DAG size of output: 1055 [2021-06-06 23:32:14,272 WARN L205 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 1569 DAG size of output: 1481 [2021-06-06 23:32:18,094 WARN L205 SmtUtils]: Spent 3.81 s on a formula simplification. DAG size of input: 2317 DAG size of output: 2198 [2021-06-06 23:32:18,641 WARN L205 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 557 DAG size of output: 701 [2021-06-06 23:32:18,845 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 538 DAG size of output: 538 [2021-06-06 23:32:18,957 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 420 DAG size of output: 420 [2021-06-06 23:32:19,066 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 277 DAG size of output: 349 [2021-06-06 23:32:19,525 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 692 DAG size of output: 636 [2021-06-06 23:32:19,648 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 285 [2021-06-06 23:32:20,216 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 605 DAG size of output: 576 [2021-06-06 23:32:20,430 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 609 DAG size of output: 578 [2021-06-06 23:32:20,826 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 1104 DAG size of output: 1021 [2021-06-06 23:32:21,577 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 596 DAG size of output: 591 [2021-06-06 23:32:21,801 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 686 DAG size of output: 671 [2021-06-06 23:32:22,580 WARN L205 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 1531 DAG size of output: 1437 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown