/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-None-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 21:21:40,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 21:21:40,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 21:21:40,859 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-09 21:21:40,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-None-NoLbe.epf [2021-07-09 21:21:40,939 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 21:21:40,939 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 21:21:40,940 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 21:21:40,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 21:21:40,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 21:21:40,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 21:21:40,942 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 21:21:40,942 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 21:21:40,942 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 21:21:40,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 21:21:40,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 21:21:40,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 21:21:40,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 21:21:40,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 21:21:40,943 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 21:21:40,943 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 21:21:40,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 21:21:40,944 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 21:21:40,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 21:21:40,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 21:21:40,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 21:21:40,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 21:21:40,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 21:21:40,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 21:21:40,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 21:21:40,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 21:21:40,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 21:21:40,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 21:21:40,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 21:21:40,945 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 21:21:40,945 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-09 21:21:40,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 21:21:40,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 21:21:41,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 21:21:41,215 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 21:21:41,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 21:21:41,217 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-09 21:21:41,219 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-09 21:21:41,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2021-07-09 21:21:41,219 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2021-07-09 21:21:41,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 21:21:41,238 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-09 21:21:41,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 21:21:41,239 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 21:21:41,239 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 21:21:41,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:21:41" (1/1) ... [2021-07-09 21:21:41,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:21:41" (1/1) ... [2021-07-09 21:21:41,258 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 21:21:41,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 21:21:41,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 21:21:41,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 21:21:41,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:21:41" (1/1) ... [2021-07-09 21:21:41,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:21:41" (1/1) ... [2021-07-09 21:21:41,266 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:21:41" (1/1) ... [2021-07-09 21:21:41,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:21:41" (1/1) ... [2021-07-09 21:21:41,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:21:41" (1/1) ... [2021-07-09 21:21:41,272 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:21:41" (1/1) ... [2021-07-09 21:21:41,272 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:21:41" (1/1) ... [2021-07-09 21:21:41,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 21:21:41,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 21:21:41,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 21:21:41,274 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 21:21:41,276 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:21:41" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 21:21:41,333 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-09 21:21:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-09 21:21:41,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-09 21:21:41,334 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-09 21:21:41,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-09 21:21:41,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-09 21:21:41,335 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-09 21:21:41,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 21:21:41,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 21:21:41,336 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-09 21:21:41,336 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-09 21:21:41,336 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-09 21:21:41,337 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 21:21:41,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 21:21:41,548 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-09 21:21:41,550 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 09:21:41 BoogieIcfgContainer [2021-07-09 21:21:41,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 21:21:41,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 21:21:41,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 21:21:41,553 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 21:21:41,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 09:21:41" (1/2) ... [2021-07-09 21:21:41,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f376b5f and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 09:21:41, skipping insertion in model container [2021-07-09 21:21:41,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 09:21:41" (2/2) ... [2021-07-09 21:21:41,554 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2021-07-09 21:21:41,558 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 21:21:41,558 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 21:21:41,558 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 21:21:41,558 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 21:21:41,584 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-09 21:21:41,599 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-09 21:21:41,632 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 21:21:41,632 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 21:21:41,632 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 21:21:41,632 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 21:21:41,632 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 21:21:41,633 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 21:21:41,633 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 21:21:41,633 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 21:21:41,645 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 29 transitions, 82 flow [2021-07-09 21:21:41,669 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 112 states, 111 states have (on average 2.810810810810811) internal successors, (312), 111 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:21:41,680 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:21:41,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:21:41,686 INFO L82 PathProgramCache]: Analyzing trace with hash -14689673, now seen corresponding path program 1 times [2021-07-09 21:21:41,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:21:41,692 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199505275] [2021-07-09 21:21:41,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:21:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:21:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 21:21:41,906 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:21:41,907 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199505275] [2021-07-09 21:21:41,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199505275] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:41,908 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596207759] [2021-07-09 21:21:41,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:41,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:21:41,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-09 21:21:41,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:21:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 21:21:42,083 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596207759] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:42,083 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:21:42,083 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-07-09 21:21:42,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643827034] [2021-07-09 21:21:42,087 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 21:21:42,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:21:42,094 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 21:21:42,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-07-09 21:21:42,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:42,095 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:21:42,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.0) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:21:42,096 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:42,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:42,376 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-07-09 21:21:42,376 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:21:42,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:21:42,377 INFO L82 PathProgramCache]: Analyzing trace with hash -2096237483, now seen corresponding path program 2 times [2021-07-09 21:21:42,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:21:42,377 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279490135] [2021-07-09 21:21:42,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:21:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:21:42,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:21:42,733 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:21:42,733 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279490135] [2021-07-09 21:21:42,734 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279490135] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:42,734 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033899271] [2021-07-09 21:21:42,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:42,774 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 21:21:42,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:21:42,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-09 21:21:42,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:21:43,085 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:21:43,085 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 19 treesize of output 27 [2021-07-09 21:21:43,099 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-09 21:21:43,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:21:43,127 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 21:21:43,128 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:30, output treesize:51 [2021-07-09 21:21:43,175 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:21:43,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033899271] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:43,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:21:43,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-07-09 21:21:43,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242863989] [2021-07-09 21:21:43,176 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-07-09 21:21:43,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:21:43,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-07-09 21:21:43,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2021-07-09 21:21:43,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:43,177 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:21:43,177 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 2.4210526315789473) internal successors, (46), 19 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:21:43,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:43,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:43,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:43,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:21:44,119 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:44,119 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:21:44,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:21:44,120 INFO L82 PathProgramCache]: Analyzing trace with hash 223283601, now seen corresponding path program 3 times [2021-07-09 21:21:44,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:21:44,120 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925760275] [2021-07-09 21:21:44,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:21:44,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:21:44,190 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:21:44,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:21:44,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925760275] [2021-07-09 21:21:44,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925760275] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:44,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842988042] [2021-07-09 21:21:44,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:44,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-09 21:21:44,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:21:44,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-09 21:21:44,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:21:44,394 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:21:44,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842988042] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:44,395 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:21:44,395 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18 [2021-07-09 21:21:44,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678296890] [2021-07-09 21:21:44,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 21:21:44,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:21:44,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 21:21:44,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2021-07-09 21:21:44,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:44,396 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:21:44,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.6666666666666665) internal successors, (48), 18 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:21:44,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:44,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:21:44,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:44,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:44,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:21:44,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:21:44,793 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:44,793 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:21:44,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:21:44,793 INFO L82 PathProgramCache]: Analyzing trace with hash -2081674347, now seen corresponding path program 4 times [2021-07-09 21:21:44,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:21:44,794 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839165904] [2021-07-09 21:21:44,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:21:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:21:44,877 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 21:21:44,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:21:44,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839165904] [2021-07-09 21:21:44,878 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839165904] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:44,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066617547] [2021-07-09 21:21:44,878 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:44,907 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 21:21:44,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:21:44,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-09 21:21:44,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:21:45,022 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 23 proven. 16 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-07-09 21:21:45,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066617547] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:45,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:21:45,022 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 18 [2021-07-09 21:21:45,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91737435] [2021-07-09 21:21:45,023 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-07-09 21:21:45,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:21:45,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-07-09 21:21:45,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2021-07-09 21:21:45,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:45,023 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:21:45,023 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 18 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:21:45,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:45,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:21:45,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:21:45,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:45,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:45,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:21:45,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:21:45,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:21:45,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:45,413 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:21:45,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:21:45,413 INFO L82 PathProgramCache]: Analyzing trace with hash -2089053423, now seen corresponding path program 5 times [2021-07-09 21:21:45,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:21:45,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430512197] [2021-07-09 21:21:45,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:21:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:21:46,081 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 4 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:21:46,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:21:46,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430512197] [2021-07-09 21:21:46,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430512197] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:46,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231810865] [2021-07-09 21:21:46,082 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:46,114 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-09 21:21:46,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:21:46,115 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 55 conjunts are in the unsatisfiable core [2021-07-09 21:21:46,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:21:46,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:46,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:46,975 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 21:21:46,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:46,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:46,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:46,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2021-07-09 21:21:46,980 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 21:21:46,984 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:21:46,986 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 21:21:46,986 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:54, output treesize:3 [2021-07-09 21:21:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:21:47,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231810865] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:47,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:21:47,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 19] total 37 [2021-07-09 21:21:47,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847274605] [2021-07-09 21:21:47,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-09 21:21:47,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:21:47,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-09 21:21:47,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=1214, Unknown=0, NotChecked=0, Total=1332 [2021-07-09 21:21:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:47,015 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:21:47,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.081081081081081) internal successors, (77), 37 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:21:47,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:47,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:21:47,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:21:47,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:21:47,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:49,714 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 99 [2021-07-09 21:21:50,044 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 94 [2021-07-09 21:21:50,407 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104 [2021-07-09 21:21:50,554 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2021-07-09 21:21:50,838 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2021-07-09 21:21:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:21:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:21:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:21:51,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:21:51,896 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:51,897 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:21:51,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:21:51,897 INFO L82 PathProgramCache]: Analyzing trace with hash 1502281795, now seen corresponding path program 6 times [2021-07-09 21:21:51,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:21:51,897 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608923016] [2021-07-09 21:21:51,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:21:51,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:21:52,118 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 45 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:21:52,119 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:21:52,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608923016] [2021-07-09 21:21:52,119 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608923016] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:52,119 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667311306] [2021-07-09 21:21:52,119 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:52,160 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2021-07-09 21:21:52,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:21:52,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 21 conjunts are in the unsatisfiable core [2021-07-09 21:21:52,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:21:52,639 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 45 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:21:52,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667311306] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:52,639 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:21:52,639 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 40 [2021-07-09 21:21:52,639 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718557200] [2021-07-09 21:21:52,640 INFO L462 AbstractCegarLoop]: Interpolant automaton has 40 states [2021-07-09 21:21:52,640 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:21:52,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-07-09 21:21:52,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=1261, Unknown=0, NotChecked=0, Total=1560 [2021-07-09 21:21:52,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:52,642 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:21:52,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 40 states, 40 states have (on average 2.325) internal successors, (93), 40 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:21:52,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:52,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:21:52,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:21:52,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:21:52,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:21:52,642 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:52,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:52,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:21:52,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:21:52,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:21:52,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:21:52,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:21:53,195 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:53,195 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:21:53,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:21:53,196 INFO L82 PathProgramCache]: Analyzing trace with hash 616833919, now seen corresponding path program 7 times [2021-07-09 21:21:53,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:21:53,196 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433344909] [2021-07-09 21:21:53,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:21:53,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:21:54,257 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 36 proven. 132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:21:54,257 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:21:54,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433344909] [2021-07-09 21:21:54,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433344909] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:54,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685371830] [2021-07-09 21:21:54,258 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:21:54,295 WARN L261 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 88 conjunts are in the unsatisfiable core [2021-07-09 21:21:54,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:21:55,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:55,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:55,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:55,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:55,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:55,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:55,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:55,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:55,473 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 21:21:55,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:21:55,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 21:21:55,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 45 disjoint index pairs (out of 66 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 27 [2021-07-09 21:21:55,476 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 21:21:55,480 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:21:55,481 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 21:21:55,481 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:75, output treesize:3 [2021-07-09 21:21:55,509 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:21:55,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685371830] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:55,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:21:55,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26] total 49 [2021-07-09 21:21:55,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150913991] [2021-07-09 21:21:55,510 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-07-09 21:21:55,510 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:21:55,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-07-09 21:21:55,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=2179, Unknown=0, NotChecked=0, Total=2352 [2021-07-09 21:21:55,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:55,511 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:21:55,512 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.204081632653061) internal successors, (108), 49 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:21:55,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:55,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:21:55,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:21:55,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:21:55,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:21:55,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:21:55,512 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:21:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:21:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:21:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:21:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:21:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:21:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:21:59,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:21:59,472 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-09 21:21:59,473 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:21:59,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:21:59,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1677637445, now seen corresponding path program 8 times [2021-07-09 21:21:59,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:21:59,473 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842459502] [2021-07-09 21:21:59,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:21:59,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:21:59,700 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 100 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:21:59,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:21:59,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842459502] [2021-07-09 21:21:59,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842459502] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:21:59,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740948847] [2021-07-09 21:21:59,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:21:59,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 21:21:59,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:21:59,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 26 conjunts are in the unsatisfiable core [2021-07-09 21:21:59,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:22:00,356 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 121 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:22:00,356 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740948847] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:00,356 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:22:00,356 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 49 [2021-07-09 21:22:00,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197262772] [2021-07-09 21:22:00,357 INFO L462 AbstractCegarLoop]: Interpolant automaton has 49 states [2021-07-09 21:22:00,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:22:00,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-07-09 21:22:00,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=418, Invalid=1934, Unknown=0, NotChecked=0, Total=2352 [2021-07-09 21:22:00,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:00,358 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:22:00,358 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 49 states, 49 states have (on average 2.2857142857142856) internal successors, (112), 49 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:22:00,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:00,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:00,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:00,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:00,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:00,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:00,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:00,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:01,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:01,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:01,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:01,640 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:22:01,640 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:22:01,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:22:01,641 INFO L82 PathProgramCache]: Analyzing trace with hash 1423090991, now seen corresponding path program 9 times [2021-07-09 21:22:01,641 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:22:01,641 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701673375] [2021-07-09 21:22:01,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:22:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:22:01,995 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 172 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:22:01,996 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:22:01,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701673375] [2021-07-09 21:22:01,996 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701673375] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:01,996 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251268787] [2021-07-09 21:22:01,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:22:02,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2021-07-09 21:22:02,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:22:02,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 31 conjunts are in the unsatisfiable core [2021-07-09 21:22:02,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:22:02,807 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 172 proven. 172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:22:02,807 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251268787] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:02,807 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:22:02,807 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 60 [2021-07-09 21:22:02,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583992391] [2021-07-09 21:22:02,808 INFO L462 AbstractCegarLoop]: Interpolant automaton has 60 states [2021-07-09 21:22:02,808 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:22:02,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-07-09 21:22:02,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=668, Invalid=2872, Unknown=0, NotChecked=0, Total=3540 [2021-07-09 21:22:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:02,809 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:22:02,809 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 60 states, 60 states have (on average 2.216666666666667) internal successors, (133), 60 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:22:02,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:02,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:02,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:02,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:02,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:02,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:02,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:02,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:02,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:03,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 21:22:03,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:22:03,337 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:22:03,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:22:03,337 INFO L82 PathProgramCache]: Analyzing trace with hash -156926293, now seen corresponding path program 10 times [2021-07-09 21:22:03,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:22:03,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744693250] [2021-07-09 21:22:03,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:22:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:22:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 159 proven. 237 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:22:03,742 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:22:03,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744693250] [2021-07-09 21:22:03,742 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744693250] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:03,742 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524283531] [2021-07-09 21:22:03,742 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:22:03,790 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 21:22:03,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:22:03,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 31 conjunts are in the unsatisfiable core [2021-07-09 21:22:03,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:22:04,569 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 185 proven. 209 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-09 21:22:04,569 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524283531] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:04,569 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:22:04,569 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 32] total 64 [2021-07-09 21:22:04,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747534758] [2021-07-09 21:22:04,570 INFO L462 AbstractCegarLoop]: Interpolant automaton has 64 states [2021-07-09 21:22:04,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:22:04,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-07-09 21:22:04,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=534, Invalid=3498, Unknown=0, NotChecked=0, Total=4032 [2021-07-09 21:22:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:04,571 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:22:04,571 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 64 states, 64 states have (on average 2.296875) internal successors, (147), 64 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:22:04,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:04,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:04,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:04,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:04,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:04,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:04,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:04,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:04,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-09 21:22:04,571 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:06,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 21:22:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-07-09 21:22:06,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-09 21:22:06,233 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:22:06,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:22:06,233 INFO L82 PathProgramCache]: Analyzing trace with hash 2092412391, now seen corresponding path program 11 times [2021-07-09 21:22:06,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:22:06,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812186363] [2021-07-09 21:22:06,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:22:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:22:08,282 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 144 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:22:08,282 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:22:08,282 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812186363] [2021-07-09 21:22:08,283 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812186363] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:08,283 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656031485] [2021-07-09 21:22:08,283 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:22:08,344 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2021-07-09 21:22:08,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:22:08,347 WARN L261 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 136 conjunts are in the unsatisfiable core [2021-07-09 21:22:08,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:22:11,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,100 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 21:22:11,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:11,109 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 21:22:11,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 120 disjoint index pairs (out of 153 index pairs), introduced 16 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 39 [2021-07-09 21:22:11,119 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 21:22:11,124 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:22:11,125 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 21:22:11,125 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:111, output treesize:3 [2021-07-09 21:22:11,168 INFO L134 CoverageAnalysis]: Checked inductivity of 456 backedges. 0 proven. 456 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:22:11,168 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1656031485] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:11,168 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:22:11,168 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38] total 73 [2021-07-09 21:22:11,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664564315] [2021-07-09 21:22:11,169 INFO L462 AbstractCegarLoop]: Interpolant automaton has 73 states [2021-07-09 21:22:11,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:22:11,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-07-09 21:22:11,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=4948, Unknown=0, NotChecked=0, Total=5256 [2021-07-09 21:22:11,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:11,170 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:22:11,170 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 73 states, 73 states have (on average 2.136986301369863) internal successors, (156), 73 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:22:11,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:11,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:11,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:11,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:11,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:11,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:11,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:11,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:11,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-09 21:22:11,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-07-09 21:22:11,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:18,106 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2021-07-09 21:22:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:18,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 21:22:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-07-09 21:22:18,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-09 21:22:18,496 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-09 21:22:18,497 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:22:18,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:22:18,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1130880803, now seen corresponding path program 12 times [2021-07-09 21:22:18,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:22:18,497 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418301165] [2021-07-09 21:22:18,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:22:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:22:18,965 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 256 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:22:18,966 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:22:18,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418301165] [2021-07-09 21:22:18,966 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418301165] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:18,966 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459360557] [2021-07-09 21:22:18,966 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:22:19,019 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-07-09 21:22:19,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:22:19,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 38 conjunts are in the unsatisfiable core [2021-07-09 21:22:19,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:22:20,159 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 289 proven. 235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:22:20,159 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1459360557] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:20,159 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:22:20,160 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 73 [2021-07-09 21:22:20,160 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293908163] [2021-07-09 21:22:20,160 INFO L462 AbstractCegarLoop]: Interpolant automaton has 73 states [2021-07-09 21:22:20,160 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:22:20,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-07-09 21:22:20,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=940, Invalid=4316, Unknown=0, NotChecked=0, Total=5256 [2021-07-09 21:22:20,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:20,161 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:22:20,162 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 73 states, 73 states have (on average 2.191780821917808) internal successors, (160), 73 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-09 21:22:20,162 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:22,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 21:22:22,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-07-09 21:22:22,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-09 21:22:22,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-07-09 21:22:22,475 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-09 21:22:22,476 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:22:22,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:22:22,476 INFO L82 PathProgramCache]: Analyzing trace with hash 597901207, now seen corresponding path program 13 times [2021-07-09 21:22:22,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:22:22,476 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976015320] [2021-07-09 21:22:22,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:22:22,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:22:23,090 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 364 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:22:23,090 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:22:23,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976015320] [2021-07-09 21:22:23,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976015320] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:23,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785173818] [2021-07-09 21:22:23,090 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:22:23,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:22:23,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 39 conjunts are in the unsatisfiable core [2021-07-09 21:22:23,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:22:24,349 INFO L134 CoverageAnalysis]: Checked inductivity of 728 backedges. 394 proven. 324 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-09 21:22:24,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [785173818] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:24,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:22:24,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 40] total 82 [2021-07-09 21:22:24,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732971749] [2021-07-09 21:22:24,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 82 states [2021-07-09 21:22:24,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:22:24,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-07-09 21:22:24,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=867, Invalid=5775, Unknown=0, NotChecked=0, Total=6642 [2021-07-09 21:22:24,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:24,351 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:22:24,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 82 states, 82 states have (on average 2.231707317073171) internal successors, (183), 82 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-07-09 21:22:24,352 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:26,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-07-09 21:22:26,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-09 21:22:26,425 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:22:26,425 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:22:26,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:22:26,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1609614611, now seen corresponding path program 14 times [2021-07-09 21:22:26,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:22:26,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020932437] [2021-07-09 21:22:26,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:22:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:22:27,083 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 345 proven. 459 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:22:27,083 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:22:27,083 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020932437] [2021-07-09 21:22:27,084 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020932437] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:27,084 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183913357] [2021-07-09 21:22:27,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:22:27,129 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 21:22:27,129 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:22:27,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 43 conjunts are in the unsatisfiable core [2021-07-09 21:22:27,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:22:28,555 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 383 proven. 419 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-09 21:22:28,556 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183913357] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:28,556 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 21:22:28,556 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 44] total 88 [2021-07-09 21:22:28,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027855537] [2021-07-09 21:22:28,556 INFO L462 AbstractCegarLoop]: Interpolant automaton has 88 states [2021-07-09 21:22:28,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 21:22:28,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-07-09 21:22:28,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=996, Invalid=6660, Unknown=0, NotChecked=0, Total=7656 [2021-07-09 21:22:28,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:28,558 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-09 21:22:28,558 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 88 states, 88 states have (on average 2.215909090909091) internal successors, (195), 88 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 21:22:28,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:28,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:28,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:28,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:28,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:28,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:28,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:28,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:28,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-07-09 21:22:28,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-07-09 21:22:28,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-07-09 21:22:28,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2021-07-09 21:22:28,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2021-07-09 21:22:28,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-09 21:22:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 21:22:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-07-09 21:22:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 21:22:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-09 21:22:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-07-09 21:22:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-07-09 21:22:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-07-09 21:22:30,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-07-09 21:22:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-07-09 21:22:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-07-09 21:22:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-07-09 21:22:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-07-09 21:22:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-07-09 21:22:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-07-09 21:22:31,112 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:22:31,113 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 21:22:31,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 21:22:31,113 INFO L82 PathProgramCache]: Analyzing trace with hash 695730255, now seen corresponding path program 15 times [2021-07-09 21:22:31,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 21:22:31,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822477978] [2021-07-09 21:22:31,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 21:22:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 21:22:34,805 INFO L134 CoverageAnalysis]: Checked inductivity of 888 backedges. 324 proven. 564 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 21:22:34,806 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 21:22:34,806 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822477978] [2021-07-09 21:22:34,806 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822477978] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 21:22:34,806 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4575228] [2021-07-09 21:22:34,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 21:22:34,885 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-07-09 21:22:34,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 21:22:34,888 WARN L261 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 189 conjunts are in the unsatisfiable core [2021-07-09 21:22:34,889 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 21:22:43,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 21:22:43,314 INFO L244 Elim1Store]: Index analysis took 233 ms [2021-07-09 21:22:43,889 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2021-07-09 21:22:43,889 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 21:22:43,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 33 select indices, 33 select index equivalence classes, 462 disjoint index pairs (out of 528 index pairs), introduced 33 new quantified variables, introduced 66 case distinctions, treesize of input 161 treesize of output 729 [2021-07-09 21:22:44,357 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 397 [2021-07-09 21:22:44,654 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 395 DAG size of output: 397 [2021-07-09 21:22:44,969 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 421 DAG size of output: 423 [2021-07-09 21:22:47,572 WARN L205 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 1504 DAG size of output: 954 [2021-07-09 21:22:50,198 WARN L205 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 1516 DAG size of output: 966 [2021-07-09 21:22:56,280 WARN L205 SmtUtils]: Spent 6.03 s on a formula simplification. DAG size of input: 1640 DAG size of output: 1576 [2021-07-09 21:23:02,929 WARN L205 SmtUtils]: Spent 6.60 s on a formula simplification. DAG size of input: 1662 DAG size of output: 1598 [2021-07-09 21:24:06,182 WARN L205 SmtUtils]: Spent 1.05 m on a formula simplification. DAG size of input: 5403 DAG size of output: 4513 [2021-07-09 21:25:11,927 WARN L205 SmtUtils]: Spent 1.09 m on a formula simplification. DAG size of input: 5407 DAG size of output: 4517 [2021-07-09 21:26:48,729 WARN L205 SmtUtils]: Spent 1.61 m on a formula simplification. DAG size of input: 6817 DAG size of output: 5732 [2021-07-09 21:28:35,648 WARN L205 SmtUtils]: Spent 1.78 m on a formula simplification. DAG size of input: 6832 DAG size of output: 5747 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown