/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-NewStatesSleepPersistent-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-10 09:36:18,832 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-10 09:36:18,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-10 09:36:18,858 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-10 09:36:18,889 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-NewStatesSleepPersistent-NoLbe-Lockstep.epf [2021-07-10 09:36:18,908 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-10 09:36:18,909 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-10 09:36:18,909 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-10 09:36:18,909 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-10 09:36:18,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-10 09:36:18,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-10 09:36:18,910 INFO L138 SettingsManager]: * Use SBE=true [2021-07-10 09:36:18,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-10 09:36:18,911 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-10 09:36:18,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-10 09:36:18,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-10 09:36:18,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-10 09:36:18,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-10 09:36:18,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-10 09:36:18,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-10 09:36:18,912 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-10 09:36:18,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-10 09:36:18,912 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-10 09:36:18,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-10 09:36:18,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-10 09:36:18,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-10 09:36:18,913 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-10 09:36:18,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-10 09:36:18,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-10 09:36:18,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-10 09:36:18,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-10 09:36:18,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-10 09:36:18,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-10 09:36:18,914 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-07-10 09:36:18,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-10 09:36:18,915 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-10 09:36:18,915 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-10 09:36:18,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-10 09:36:18,915 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-07-10 09:36:18,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-10 09:36:19,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-10 09:36:19,258 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-10 09:36:19,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-10 09:36:19,261 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-10 09:36:19,262 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-10 09:36:19,262 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl [2021-07-10 09:36:19,263 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl' [2021-07-10 09:36:19,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-10 09:36:19,304 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-10 09:36:19,305 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-10 09:36:19,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-10 09:36:19,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-10 09:36:19,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:36:19" (1/1) ... [2021-07-10 09:36:19,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:36:19" (1/1) ... [2021-07-10 09:36:19,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-10 09:36:19,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-10 09:36:19,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-10 09:36:19,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-10 09:36:19,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:36:19" (1/1) ... [2021-07-10 09:36:19,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:36:19" (1/1) ... [2021-07-10 09:36:19,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:36:19" (1/1) ... [2021-07-10 09:36:19,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:36:19" (1/1) ... [2021-07-10 09:36:19,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:36:19" (1/1) ... [2021-07-10 09:36:19,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:36:19" (1/1) ... [2021-07-10 09:36:19,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:36:19" (1/1) ... [2021-07-10 09:36:19,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-10 09:36:19,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-10 09:36:19,356 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-10 09:36:19,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-10 09:36:19,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:36:19" (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 [2021-07-10 09:36:19,427 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-10 09:36:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-10 09:36:19,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-10 09:36:19,428 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-10 09:36:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-10 09:36:19,428 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-10 09:36:19,428 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-10 09:36:19,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-10 09:36:19,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-10 09:36:19,430 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-10 09:36:19,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-10 09:36:19,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-10 09:36:19,431 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-10 09:36:19,655 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-10 09:36:19,655 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-10 09:36:19,657 INFO L202 PluginConnector]: Adding new model sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 09:36:19 BoogieIcfgContainer [2021-07-10 09:36:19,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-10 09:36:19,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-10 09:36:19,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-10 09:36:19,661 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-10 09:36:19,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.07 09:36:19" (1/2) ... [2021-07-10 09:36:19,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@558f10c7 and model type sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 09:36:19, skipping insertion in model container [2021-07-10 09:36:19,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 09:36:19" (2/2) ... [2021-07-10 09:36:19,664 INFO L111 eAbstractionObserver]: Analyzing ICFG sorted.wvr.bpl [2021-07-10 09:36:19,669 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-10 09:36:19,669 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-10 09:36:19,669 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-10 09:36:19,670 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-10 09:36:19,708 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-07-10 09:36:19,740 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 [2021-07-10 09:36:19,800 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-10 09:36:19,800 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-10 09:36:19,800 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-10 09:36:19,801 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-10 09:36:19,801 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-10 09:36:19,801 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-10 09:36:19,801 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-10 09:36:19,801 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-10 09:36:19,876 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:19,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:19,881 INFO L82 PathProgramCache]: Analyzing trace with hash -252146076, now seen corresponding path program 1 times [2021-07-10 09:36:19,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:19,888 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096530166] [2021-07-10 09:36:19,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:20,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:20,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:20,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096530166] [2021-07-10 09:36:20,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096530166] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-10 09:36:20,026 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-10 09:36:20,026 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-10 09:36:20,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403741676] [2021-07-10 09:36:20,030 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-10 09:36:20,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:20,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-10 09:36:20,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-07-10 09:36:20,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:20,043 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:20,044 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:36:20,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:20,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:20,066 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-10 09:36:20,066 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:20,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:20,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1086491390, now seen corresponding path program 1 times [2021-07-10 09:36:20,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:20,068 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588797632] [2021-07-10 09:36:20,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:20,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:20,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:20,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:20,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588797632] [2021-07-10 09:36:20,143 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588797632] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:20,143 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1211534314] [2021-07-10 09:36:20,143 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 [2021-07-10 09:36:20,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:20,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-10 09:36:20,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:20,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1211534314] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:20,371 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:20,371 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 10 [2021-07-10 09:36:20,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534080428] [2021-07-10 09:36:20,374 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-10 09:36:20,374 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:20,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-10 09:36:20,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-07-10 09:36:20,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:20,377 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:20,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 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) [2021-07-10 09:36:20,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:20,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:20,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:20,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:20,773 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:20,773 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:20,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:20,774 INFO L82 PathProgramCache]: Analyzing trace with hash -163513564, now seen corresponding path program 1 times [2021-07-10 09:36:20,774 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:20,774 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155999126] [2021-07-10 09:36:20,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:20,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:20,964 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:20,965 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:20,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155999126] [2021-07-10 09:36:20,965 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155999126] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:20,965 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532595213] [2021-07-10 09:36:20,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:21,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 09:36:21,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:21,243 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:21,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1532595213] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:21,244 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:21,244 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-07-10 09:36:21,244 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738596010] [2021-07-10 09:36:21,245 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-07-10 09:36:21,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:21,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-07-10 09:36:21,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2021-07-10 09:36:21,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:21,248 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:21,290 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 3.357142857142857) internal successors, (47), 14 states have internal predecessors, (47), 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) [2021-07-10 09:36:21,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:21,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:21,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:21,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:21,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:21,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:21,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:21,573 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:21,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:21,574 INFO L82 PathProgramCache]: Analyzing trace with hash -1269472574, now seen corresponding path program 2 times [2021-07-10 09:36:21,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:21,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79367470] [2021-07-10 09:36:21,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:21,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:21,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:21,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79367470] [2021-07-10 09:36:21,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79367470] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:21,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [53185141] [2021-07-10 09:36:21,638 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:21,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 09:36:21,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:21,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-10 09:36:21,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:21,804 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:21,804 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [53185141] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:21,804 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:21,804 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2021-07-10 09:36:21,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393221809] [2021-07-10 09:36:21,805 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-10 09:36:21,805 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:21,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-10 09:36:21,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-07-10 09:36:21,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:21,806 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:21,806 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:36:21,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:21,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:21,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:21,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:22,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:22,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:22,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:22,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:22,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:22,214 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:22,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:22,215 INFO L82 PathProgramCache]: Analyzing trace with hash 85227748, now seen corresponding path program 3 times [2021-07-10 09:36:22,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:22,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842524242] [2021-07-10 09:36:22,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:22,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:22,447 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:22,448 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:22,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842524242] [2021-07-10 09:36:22,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842524242] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:22,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938156392] [2021-07-10 09:36:22,448 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 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 [2021-07-10 09:36:22,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-07-10 09:36:22,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:22,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 20 conjunts are in the unsatisfiable core [2021-07-10 09:36:22,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:23,159 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2021-07-10 09:36:23,381 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:23,381 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938156392] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:23,381 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:23,381 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 21 [2021-07-10 09:36:23,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169879362] [2021-07-10 09:36:23,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-10 09:36:23,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:23,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-10 09:36:23,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2021-07-10 09:36:23,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:23,383 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:23,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:36:23,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:23,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:23,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:23,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:23,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:23,641 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2021-07-10 09:36:23,978 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 44 [2021-07-10 09:36:24,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:24,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:24,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:24,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:24,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:24,284 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-07-10 09:36:24,285 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:24,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:24,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1297080706, now seen corresponding path program 4 times [2021-07-10 09:36:24,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:24,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307729309] [2021-07-10 09:36:24,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:24,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:24,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307729309] [2021-07-10 09:36:24,360 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307729309] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:24,360 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461567815] [2021-07-10 09:36:24,360 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 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 [2021-07-10 09:36:24,407 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 09:36:24,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:24,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-10 09:36:24,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:24,582 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:24,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461567815] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:24,583 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:24,583 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2021-07-10 09:36:24,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278211433] [2021-07-10 09:36:24,585 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-07-10 09:36:24,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:24,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-07-10 09:36:24,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2021-07-10 09:36:24,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:24,585 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:24,586 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 3.0) internal successors, (51), 17 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:36:24,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:24,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:24,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:24,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:24,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:24,586 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:24,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:25,096 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:25,096 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:25,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:25,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1231701924, now seen corresponding path program 5 times [2021-07-10 09:36:25,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:25,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197106847] [2021-07-10 09:36:25,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:25,408 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:25,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:25,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197106847] [2021-07-10 09:36:25,409 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197106847] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:25,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727637027] [2021-07-10 09:36:25,409 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 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 [2021-07-10 09:36:25,442 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-10 09:36:25,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:25,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 25 conjunts are in the unsatisfiable core [2021-07-10 09:36:25,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:25,914 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:25,914 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727637027] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:25,914 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:25,915 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2021-07-10 09:36:25,915 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3539538] [2021-07-10 09:36:25,915 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-07-10 09:36:25,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:25,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-07-10 09:36:25,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=385, Unknown=0, NotChecked=0, Total=462 [2021-07-10 09:36:25,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:25,921 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:25,921 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.8636363636363638) internal successors, (63), 22 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:36:25,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:25,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:25,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:25,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:25,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:25,921 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:25,922 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:26,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:26,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:26,341 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:26,341 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:26,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:26,342 INFO L82 PathProgramCache]: Analyzing trace with hash -1100730046, now seen corresponding path program 6 times [2021-07-10 09:36:26,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:26,342 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690000041] [2021-07-10 09:36:26,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:26,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:26,461 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:26,461 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:26,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690000041] [2021-07-10 09:36:26,462 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690000041] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:26,462 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408399578] [2021-07-10 09:36:26,462 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 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 [2021-07-10 09:36:26,493 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-10 09:36:26,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:26,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2021-07-10 09:36:26,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:26,716 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:26,716 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408399578] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:26,716 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:26,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2021-07-10 09:36:26,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602189260] [2021-07-10 09:36:26,717 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-10 09:36:26,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:26,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-10 09:36:26,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2021-07-10 09:36:26,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:26,718 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:26,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.8095238095238093) internal successors, (59), 21 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:36:26,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:26,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:26,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:26,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:26,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:26,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:26,718 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:26,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:27,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:27,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:27,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:27,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:27,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:27,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-07-10 09:36:27,350 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:27,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:27,351 INFO L82 PathProgramCache]: Analyzing trace with hash -961960092, now seen corresponding path program 7 times [2021-07-10 09:36:27,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:27,351 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708377057] [2021-07-10 09:36:27,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:27,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:27,869 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:27,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:27,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708377057] [2021-07-10 09:36:27,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708377057] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:27,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117337915] [2021-07-10 09:36:27,870 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 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 [2021-07-10 09:36:27,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:27,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 29 conjunts are in the unsatisfiable core [2021-07-10 09:36:27,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:28,624 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:28,625 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117337915] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:28,625 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:28,625 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-07-10 09:36:28,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395965600] [2021-07-10 09:36:28,626 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-07-10 09:36:28,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:28,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-07-10 09:36:28,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2021-07-10 09:36:28,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:28,627 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:28,627 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.730769230769231) internal successors, (71), 26 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:36:28,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:28,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:28,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:28,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:28,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:28,627 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:28,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:28,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:28,628 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:28,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:28,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:28,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:28,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:28,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:29,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:29,098 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:29,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:29,098 INFO L82 PathProgramCache]: Analyzing trace with hash -214330878, now seen corresponding path program 8 times [2021-07-10 09:36:29,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:29,099 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43275945] [2021-07-10 09:36:29,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:29,217 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:29,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:29,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43275945] [2021-07-10 09:36:29,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43275945] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:29,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609896676] [2021-07-10 09:36:29,217 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 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 [2021-07-10 09:36:29,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 09:36:29,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:29,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 13 conjunts are in the unsatisfiable core [2021-07-10 09:36:29,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:29,514 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:29,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609896676] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:29,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:29,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2021-07-10 09:36:29,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477746312] [2021-07-10 09:36:29,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 25 states [2021-07-10 09:36:29,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:29,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-07-10 09:36:29,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=483, Unknown=0, NotChecked=0, Total=600 [2021-07-10 09:36:29,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:29,516 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:29,516 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 25 states, 25 states have (on average 2.68) internal successors, (67), 25 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:36:29,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:29,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:29,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:29,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:29,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:29,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:29,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:29,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:29,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:29,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:30,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:30,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:30,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:30,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:30,226 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:30,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:30,226 INFO L82 PathProgramCache]: Analyzing trace with hash 464115748, now seen corresponding path program 9 times [2021-07-10 09:36:30,226 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:30,226 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129630999] [2021-07-10 09:36:30,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:30,786 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:30,786 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:30,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129630999] [2021-07-10 09:36:30,786 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129630999] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:30,786 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645525619] [2021-07-10 09:36:30,786 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 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 [2021-07-10 09:36:30,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-10 09:36:30,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:30,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 42 conjunts are in the unsatisfiable core [2021-07-10 09:36:30,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:31,998 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2021-07-10 09:36:32,266 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-07-10 09:36:32,814 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2021-07-10 09:36:33,412 WARN L205 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2021-07-10 09:36:33,901 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2021-07-10 09:36:34,658 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 91 [2021-07-10 09:36:35,056 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2021-07-10 09:36:35,369 INFO L446 ElimStorePlain]: Different costs {5=[v_prenex_11], 9=[A], 13=[v_prenex_12], 18=[v_prenex_9], 21=[v_prenex_8, v_prenex_10]} [2021-07-10 09:36:35,385 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:35,386 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:35,749 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 116 [2021-07-10 09:36:35,750 INFO L628 ElimStorePlain]: treesize reduction 210, result has 65.5 percent of original size [2021-07-10 09:36:35,750 INFO L518 ElimStorePlain]: Eliminatee A vanished before elimination [2021-07-10 09:36:35,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,793 INFO L354 Elim1Store]: treesize reduction 26, result has 44.7 percent of original size [2021-07-10 09:36:35,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 23 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 5 case distinctions, treesize of input 45 treesize of output 39 [2021-07-10 09:36:35,808 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:35,961 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-07-10 09:36:35,961 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:36:35,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:35,996 INFO L354 Elim1Store]: treesize reduction 14, result has 51.7 percent of original size [2021-07-10 09:36:35,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 25 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 33 [2021-07-10 09:36:35,999 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:36,126 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-07-10 09:36:36,127 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:36:36,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,176 INFO L354 Elim1Store]: treesize reduction 24, result has 57.9 percent of original size [2021-07-10 09:36:36,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 54 [2021-07-10 09:36:36,199 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:36,336 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-07-10 09:36:36,337 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:36:36,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,405 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:36:36,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 78 [2021-07-10 09:36:36,434 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:36,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:36,482 INFO L354 Elim1Store]: treesize reduction 34, result has 40.4 percent of original size [2021-07-10 09:36:36,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 30 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 44 [2021-07-10 09:36:36,485 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:36,581 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:36:36,597 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: and 6 xjuncts. [2021-07-10 09:36:36,597 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 12 variables, input treesize:652, output treesize:143 [2021-07-10 09:36:36,908 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:36,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645525619] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:36,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:36,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 23] total 37 [2021-07-10 09:36:36,909 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236247803] [2021-07-10 09:36:36,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-10 09:36:36,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:36,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-10 09:36:36,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1200, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 09:36:36,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:36,910 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:36,910 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.1621621621621623) internal successors, (80), 37 states have internal predecessors, (80), 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) [2021-07-10 09:36:36,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:36,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:36,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:36,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:36,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:36,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:36,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:36,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:36,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:36,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:36,910 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:37,570 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 37 [2021-07-10 09:36:37,854 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 44 [2021-07-10 09:36:38,495 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 85 [2021-07-10 09:36:39,289 WARN L205 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2021-07-10 09:36:39,919 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 103 [2021-07-10 09:36:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:40,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:40,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 09:36:40,331 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-07-10 09:36:40,331 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:40,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:40,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1390887874, now seen corresponding path program 10 times [2021-07-10 09:36:40,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:40,331 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143154652] [2021-07-10 09:36:40,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:40,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:40,479 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 16 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:40,479 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:40,479 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143154652] [2021-07-10 09:36:40,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143154652] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:40,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463952084] [2021-07-10 09:36:40,480 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 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 [2021-07-10 09:36:40,509 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-10 09:36:40,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:40,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-10 09:36:40,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:40,835 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:40,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463952084] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:40,836 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:40,836 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 29 [2021-07-10 09:36:40,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052869087] [2021-07-10 09:36:40,836 INFO L462 AbstractCegarLoop]: Interpolant automaton has 29 states [2021-07-10 09:36:40,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:40,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-07-10 09:36:40,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=656, Unknown=0, NotChecked=0, Total=812 [2021-07-10 09:36:40,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:40,837 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:40,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 29 states, 29 states have (on average 2.586206896551724) internal successors, (75), 29 states have internal predecessors, (75), 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) [2021-07-10 09:36:40,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:40,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:40,837 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:40,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:40,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:40,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:40,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:40,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:40,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:40,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:40,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 09:36:40,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:41,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:41,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:41,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 09:36:41,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-10 09:36:41,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable100 [2021-07-10 09:36:41,682 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:41,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:41,682 INFO L82 PathProgramCache]: Analyzing trace with hash 1186077156, now seen corresponding path program 11 times [2021-07-10 09:36:41,682 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:41,682 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365442278] [2021-07-10 09:36:41,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:41,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:42,347 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:42,347 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:42,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365442278] [2021-07-10 09:36:42,347 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365442278] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:42,347 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360971378] [2021-07-10 09:36:42,347 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 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 [2021-07-10 09:36:42,388 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-07-10 09:36:42,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:42,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 41 conjunts are in the unsatisfiable core [2021-07-10 09:36:42,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:43,592 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:43,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360971378] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:43,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:43,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 34 [2021-07-10 09:36:43,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420503422] [2021-07-10 09:36:43,593 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-07-10 09:36:43,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:43,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-07-10 09:36:43,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1012, Unknown=0, NotChecked=0, Total=1122 [2021-07-10 09:36:43,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:43,594 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:43,594 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.5588235294117645) internal successors, (87), 34 states have internal predecessors, (87), 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) [2021-07-10 09:36:43,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:43,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:43,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:43,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:43,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:43,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:43,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:43,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:43,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:43,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:43,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 09:36:43,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-10 09:36:43,595 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:44,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:44,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:44,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:44,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:44,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:44,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:44,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:44,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:44,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:44,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:44,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 09:36:44,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-10 09:36:44,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 09:36:44,248 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-07-10 09:36:44,249 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:44,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:44,249 INFO L82 PathProgramCache]: Analyzing trace with hash -2081126782, now seen corresponding path program 12 times [2021-07-10 09:36:44,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:44,250 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625491805] [2021-07-10 09:36:44,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 25 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:44,385 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:44,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625491805] [2021-07-10 09:36:44,385 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625491805] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:44,385 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591329709] [2021-07-10 09:36:44,385 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 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 [2021-07-10 09:36:44,421 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-10 09:36:44,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:44,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-10 09:36:44,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:44,791 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 36 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:44,792 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591329709] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:44,792 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:44,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 33 [2021-07-10 09:36:44,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186069226] [2021-07-10 09:36:44,793 INFO L462 AbstractCegarLoop]: Interpolant automaton has 33 states [2021-07-10 09:36:44,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:44,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-07-10 09:36:44,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=855, Unknown=0, NotChecked=0, Total=1056 [2021-07-10 09:36:44,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:44,794 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:44,794 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 33 states, 33 states have (on average 2.515151515151515) internal successors, (83), 33 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:36:44,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:44,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 09:36:44,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:45,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 09:36:45,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-10 09:36:45,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 09:36:45,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-10 09:36:45,723 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:45,724 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:45,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1769581732, now seen corresponding path program 13 times [2021-07-10 09:36:45,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:45,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852016997] [2021-07-10 09:36:45,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:45,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:46,551 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:46,551 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:46,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852016997] [2021-07-10 09:36:46,552 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852016997] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:46,552 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350173200] [2021-07-10 09:36:46,552 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 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 [2021-07-10 09:36:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:46,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 47 conjunts are in the unsatisfiable core [2021-07-10 09:36:46,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:48,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350173200] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:48,000 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:48,000 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2021-07-10 09:36:48,000 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860221445] [2021-07-10 09:36:48,000 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-07-10 09:36:48,000 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:48,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-07-10 09:36:48,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=1287, Unknown=0, NotChecked=0, Total=1406 [2021-07-10 09:36:48,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:48,001 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:48,001 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.5) internal successors, (95), 38 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-10 09:36:48,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:48,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:48,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:48,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:48,001 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:48,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:48,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:48,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:48,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:48,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:48,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 09:36:48,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-10 09:36:48,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 09:36:48,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-10 09:36:48,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:48,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 09:36:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-10 09:36:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 09:36:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-10 09:36:48,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 09:36:48,913 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable123 [2021-07-10 09:36:48,913 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:48,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:48,913 INFO L82 PathProgramCache]: Analyzing trace with hash 811113026, now seen corresponding path program 14 times [2021-07-10 09:36:48,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:48,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715794306] [2021-07-10 09:36:48,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:49,093 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 36 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:49,093 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:49,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715794306] [2021-07-10 09:36:49,093 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715794306] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:49,093 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1856913321] [2021-07-10 09:36:49,093 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 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 [2021-07-10 09:36:49,143 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-10 09:36:49,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:49,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 19 conjunts are in the unsatisfiable core [2021-07-10 09:36:49,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:49,591 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 49 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:49,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1856913321] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:49,592 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-10 09:36:49,592 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 37 [2021-07-10 09:36:49,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326826298] [2021-07-10 09:36:49,592 INFO L462 AbstractCegarLoop]: Interpolant automaton has 37 states [2021-07-10 09:36:49,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-10 09:36:49,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-07-10 09:36:49,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=1080, Unknown=0, NotChecked=0, Total=1332 [2021-07-10 09:36:49,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:49,593 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-10 09:36:49,593 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 37 states, 37 states have (on average 2.4594594594594597) internal successors, (91), 37 states have internal predecessors, (91), 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) [2021-07-10 09:36:49,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:49,593 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-07-10 09:36:49,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-10 09:36:50,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-10 09:36:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-10 09:36:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-07-10 09:36:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-10 09:36:50,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-07-10 09:36:50,716 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:50,717 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-10 09:36:50,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-10 09:36:50,718 INFO L82 PathProgramCache]: Analyzing trace with hash -1926770588, now seen corresponding path program 15 times [2021-07-10 09:36:50,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-10 09:36:50,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914170115] [2021-07-10 09:36:50,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-10 09:36:50,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-10 09:36:51,641 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-10 09:36:51,642 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-10 09:36:51,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914170115] [2021-07-10 09:36:51,642 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914170115] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-10 09:36:51,642 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [963937873] [2021-07-10 09:36:51,642 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 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-10 09:36:51,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-07-10 09:36:51,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-10 09:36:51,684 WARN L261 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 60 conjunts are in the unsatisfiable core [2021-07-10 09:36:51,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-10 09:36:54,926 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:54,927 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:54,937 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:54,938 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:54,946 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:54,947 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:54,955 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:54,956 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:54,964 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:54,965 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:54,973 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:54,974 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:54,984 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:54,985 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:54,993 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:54,994 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:55,001 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:55,002 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:55,010 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:55,019 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:55,025 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:55,026 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:55,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:55,142 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-07-10 09:36:55,408 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 123 [2021-07-10 09:36:55,409 INFO L354 Elim1Store]: treesize reduction 54, result has 81.2 percent of original size [2021-07-10 09:36:55,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 36 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 30 case distinctions, treesize of input 76 treesize of output 260 [2021-07-10 09:36:56,581 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 318 [2021-07-10 09:36:56,725 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 318 [2021-07-10 09:36:57,547 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:57,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,707 INFO L354 Elim1Store]: treesize reduction 90, result has 33.3 percent of original size [2021-07-10 09:36:57,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 40 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 66 treesize of output 72 [2021-07-10 09:36:57,711 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:57,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,805 INFO L354 Elim1Store]: treesize reduction 30, result has 3.2 percent of original size [2021-07-10 09:36:57,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 42 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 28 [2021-07-10 09:36:57,806 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:57,813 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-07-10 09:36:57,814 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-10 09:36:57,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:57,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-10 09:36:58,099 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-07-10 09:36:58,099 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-10 09:36:58,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 56 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 35 case distinctions, treesize of input 97 treesize of output 371 [2021-07-10 09:36:58,861 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 318 [2021-07-10 09:36:59,069 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 355 [2021-07-10 09:36:59,253 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 355 [2021-07-10 09:36:59,469 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 394 DAG size of output: 389 [2021-07-10 09:37:00,478 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 449 DAG size of output: 430 [2021-07-10 09:37:00,695 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 450 [2021-07-10 09:37:01,715 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 441 DAG size of output: 382 [2021-07-10 09:37:02,172 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 597 DAG size of output: 524 [2021-07-10 09:37:02,709 WARN L205 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 765 DAG size of output: 696 [2021-07-10 09:37:03,676 WARN L205 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 1006 DAG size of output: 941 [2021-07-10 09:37:04,771 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 1006 DAG size of output: 941 [2021-07-10 09:37:11,085 WARN L205 SmtUtils]: Spent 6.30 s on a formula simplification. DAG size of input: 1011 DAG size of output: 867 [2021-07-10 09:37:39,390 WARN L205 SmtUtils]: Spent 28.30 s on a formula simplification. DAG size of input: 869 DAG size of output: 1055 [2021-07-10 09:37:44,368 WARN L205 SmtUtils]: Spent 4.97 s on a formula simplification. DAG size of input: 773 DAG size of output: 774 [2021-07-10 09:37:44,711 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 340 [2021-07-10 09:37:45,124 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 310 [2021-07-10 09:37:45,467 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 218 [2021-07-10 09:37:45,765 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 445 DAG size of output: 416 [2021-07-10 09:37:45,877 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 577 [2021-07-10 09:37:46,720 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 362 DAG size of output: 228 [2021-07-10 09:37:46,973 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 492 DAG size of output: 341 [2021-07-10 09:37:47,685 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 641 DAG size of output: 493 [2021-07-10 09:37:48,585 WARN L205 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 917 DAG size of output: 683 [2021-07-10 09:37:50,378 WARN L205 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 1258 DAG size of output: 821 [2021-07-10 09:37:52,612 WARN L205 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 1258 DAG size of output: 821 [2021-07-10 09:37:54,051 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 1263 DAG size of output: 827 [2021-07-10 09:37:56,320 WARN L205 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 829 DAG size of output: 962 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown