/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 14:12:53,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 14:12:53,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 14:12:53,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-17 14:12:53,745 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 14:12:53,763 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 14:12:53,764 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 14:12:53,779 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 14:12:53,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 14:12:53,780 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 14:12:53,781 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 14:12:53,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 14:12:53,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 14:12:53,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 14:12:53,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 14:12:53,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 14:12:53,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-17 14:12:53,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-17 14:12:53,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-17 14:12:53,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-17 14:12:53,807 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-06-17 14:12:53,852 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 14:12:53,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 14:12:53,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 14:12:53,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 14:12:53,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 14:12:53,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 14:12:53,855 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 14:12:53,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 14:12:53,856 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 14:12:53,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 14:12:53,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 14:12:53,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 14:12:53,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 14:12:53,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 14:12:53,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 14:12:53,857 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 14:12:53,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 14:12:53,857 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 14:12:53,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 14:12:53,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 14:12:53,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 14:12:53,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 14:12:53,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 14:12:53,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 14:12:53,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 14:12:53,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 14:12:53,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 14:12:53,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 14:12:53,859 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-17 14:12:53,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 14:12:53,859 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 14:12:53,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 14:12:53,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 14:12:53,859 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-17 14:12:53,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-17 14:12:53,860 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 14:12:54,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 14:12:54,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 14:12:54,196 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 14:12:54,197 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 14:12:54,197 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 14:12:54,198 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl [2021-06-17 14:12:54,199 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array.wvr.bpl' [2021-06-17 14:12:54,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 14:12:54,244 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 14:12:54,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 14:12:54,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 14:12:54,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 14:12:54,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:12:54" (1/1) ... [2021-06-17 14:12:54,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:12:54" (1/1) ... [2021-06-17 14:12:54,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 14:12:54,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 14:12:54,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 14:12:54,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 14:12:54,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:12:54" (1/1) ... [2021-06-17 14:12:54,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:12:54" (1/1) ... [2021-06-17 14:12:54,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:12:54" (1/1) ... [2021-06-17 14:12:54,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:12:54" (1/1) ... [2021-06-17 14:12:54,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:12:54" (1/1) ... [2021-06-17 14:12:54,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:12:54" (1/1) ... [2021-06-17 14:12:54,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:12:54" (1/1) ... [2021-06-17 14:12:54,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 14:12:54,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 14:12:54,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 14:12:54,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 14:12:54,287 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:12:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 14:12:54,342 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 14:12:54,342 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 14:12:54,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 14:12:54,343 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 14:12:54,343 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 14:12:54,343 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 14:12:54,343 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 14:12:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 14:12:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 14:12:54,344 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 14:12:54,344 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 14:12:54,344 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 14:12:54,345 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-17 14:12:54,604 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 14:12:54,604 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 14:12:54,605 INFO L202 PluginConnector]: Adding new model sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 02:12:54 BoogieIcfgContainer [2021-06-17 14:12:54,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 14:12:54,607 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 14:12:54,607 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 14:12:54,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 14:12:54,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 02:12:54" (1/2) ... [2021-06-17 14:12:54,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bd50db0 and model type sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 02:12:54, skipping insertion in model container [2021-06-17 14:12:54,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 02:12:54" (2/2) ... [2021-06-17 14:12:54,611 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array.wvr.bpl [2021-06-17 14:12:54,631 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 14:12:54,631 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 14:12:54,631 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 14:12:54,632 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 14:12:54,720 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-17 14:12:54,764 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-17 14:12:54,900 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 14:12:54,900 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 14:12:54,901 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 14:12:54,901 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 14:12:54,901 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 14:12:54,901 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 14:12:54,901 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 14:12:54,901 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 14:12:55,068 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:12:55,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:12:55,073 INFO L82 PathProgramCache]: Analyzing trace with hash -2097392969, now seen corresponding path program 1 times [2021-06-17 14:12:55,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:12:55,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967549041] [2021-06-17 14:12:55,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:12:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:12:55,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-17 14:12:55,221 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:12:55,221 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967549041] [2021-06-17 14:12:55,221 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967549041] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 14:12:55,221 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 14:12:55,222 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 14:12:55,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49610484] [2021-06-17 14:12:55,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 14:12:55,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:12:55,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 14:12:55,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-17 14:12:55,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:12:55,240 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:12:55,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:12:55,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:12:55,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:12:55,315 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 14:12:55,315 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:12:55,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:12:55,317 INFO L82 PathProgramCache]: Analyzing trace with hash -680271139, now seen corresponding path program 1 times [2021-06-17 14:12:55,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:12:55,317 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972993867] [2021-06-17 14:12:55,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:12:55,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:12:55,630 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:12:55,630 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:12:55,630 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972993867] [2021-06-17 14:12:55,630 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972993867] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:12:55,631 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786135922] [2021-06-17 14:12:55,631 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) [2021-06-17 14:12:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:12:55,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2021-06-17 14:12:55,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:12:56,093 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-06-17 14:12:56,394 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:12:56,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-06-17 14:12:56,402 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:12:56,406 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:12:56,418 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:12:56,419 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:17, output treesize:3 [2021-06-17 14:12:56,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:12:56,481 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786135922] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:12:56,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:12:56,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-17 14:12:56,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504797004] [2021-06-17 14:12:56,482 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 14:12:56,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:12:56,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 14:12:56,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-17 14:12:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:12:56,483 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:12:56,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 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) [2021-06-17 14:12:56,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:12:56,483 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:12:56,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:12:56,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:12:56,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:12:56,936 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:12:56,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:12:56,937 INFO L82 PathProgramCache]: Analyzing trace with hash -1091492933, now seen corresponding path program 1 times [2021-06-17 14:12:56,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:12:56,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378971820] [2021-06-17 14:12:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:12:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:12:57,030 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:12:57,031 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:12:57,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378971820] [2021-06-17 14:12:57,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378971820] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:12:57,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156520093] [2021-06-17 14:12:57,031 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 [2021-06-17 14:12:57,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:12:57,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-17 14:12:57,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:12:57,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:12:57,244 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156520093] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:12:57,265 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:12:57,265 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-17 14:12:57,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885849424] [2021-06-17 14:12:57,265 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-17 14:12:57,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:12:57,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-17 14:12:57,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-17 14:12:57,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:12:57,266 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:12:57,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:12:57,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:12:57,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:12:57,266 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:12:57,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:12:57,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:12:57,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 14:12:57,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:12:57,618 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:12:57,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:12:57,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1831110405, now seen corresponding path program 2 times [2021-06-17 14:12:57,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:12:57,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629603638] [2021-06-17 14:12:57,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:12:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:12:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:12:57,752 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:12:57,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629603638] [2021-06-17 14:12:57,752 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629603638] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:12:57,752 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285249791] [2021-06-17 14:12:57,752 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 [2021-06-17 14:12:57,833 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 14:12:57,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:12:57,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 14:12:57,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:12:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:12:58,072 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285249791] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:12:58,072 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:12:58,072 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-17 14:12:58,072 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733626249] [2021-06-17 14:12:58,073 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 14:12:58,073 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:12:58,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 14:12:58,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-17 14:12:58,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:12:58,089 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:12:58,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.076923076923077) internal successors, (40), 12 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:12:58,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:12:58,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:12:58,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 14:12:58,089 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:12:58,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:12:58,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:12:58,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:12:58,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:12:58,652 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:12:58,653 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:12:58,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:12:58,653 INFO L82 PathProgramCache]: Analyzing trace with hash 2027517141, now seen corresponding path program 2 times [2021-06-17 14:12:58,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:12:58,653 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38360818] [2021-06-17 14:12:58,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:12:58,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:12:59,174 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:12:59,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:12:59,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38360818] [2021-06-17 14:12:59,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38360818] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:12:59,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132664401] [2021-06-17 14:12:59,176 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:12:59,223 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 14:12:59,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:12:59,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 26 conjunts are in the unsatisfiable core [2021-06-17 14:12:59,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:12:59,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:12:59,519 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:12:59,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 11 [2021-06-17 14:12:59,521 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:12:59,540 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:12:59,544 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:12:59,544 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:25, output treesize:3 [2021-06-17 14:12:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:12:59,586 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132664401] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:12:59,586 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:12:59,587 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2021-06-17 14:12:59,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170629689] [2021-06-17 14:12:59,587 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-17 14:12:59,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:12:59,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-17 14:12:59,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2021-06-17 14:12:59,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:12:59,589 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:12:59,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.5294117647058822) internal successors, (43), 17 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) [2021-06-17 14:12:59,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:12:59,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:12:59,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:12:59,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:12:59,590 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:00,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:00,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:00,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:00,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:00,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-17 14:13:00,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:00,361 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:00,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:00,361 INFO L82 PathProgramCache]: Analyzing trace with hash 1898212595, now seen corresponding path program 3 times [2021-06-17 14:13:00,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:00,362 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403756357] [2021-06-17 14:13:00,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:00,451 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:00,452 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:00,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403756357] [2021-06-17 14:13:00,452 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403756357] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:00,452 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1502804376] [2021-06-17 14:13:00,452 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:00,497 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-17 14:13:00,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:00,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-17 14:13:00,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:00,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1502804376] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:00,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:00,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-06-17 14:13:00,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065036235] [2021-06-17 14:13:00,628 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 14:13:00,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:00,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 14:13:00,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-06-17 14:13:00,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:00,629 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:00,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 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) [2021-06-17 14:13:00,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:00,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:00,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:00,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:00,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-06-17 14:13:00,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:00,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:00,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:01,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:01,136 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:01,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:01,137 INFO L82 PathProgramCache]: Analyzing trace with hash -390772019, now seen corresponding path program 4 times [2021-06-17 14:13:01,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:01,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722963070] [2021-06-17 14:13:01,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:01,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:01,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722963070] [2021-06-17 14:13:01,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722963070] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:01,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375500735] [2021-06-17 14:13:01,588 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:01,622 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 14:13:01,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:01,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-06-17 14:13:01,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:02,010 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:02,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:02,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:02,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-06-17 14:13:02,014 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:13:02,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:02,020 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:13:02,020 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:3 [2021-06-17 14:13:02,038 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:02,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375500735] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:02,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:02,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 21 [2021-06-17 14:13:02,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75869574] [2021-06-17 14:13:02,038 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-06-17 14:13:02,038 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:02,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-06-17 14:13:02,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2021-06-17 14:13:02,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:02,039 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:02,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 2.4285714285714284) internal successors, (51), 21 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:13:02,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:02,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:02,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:02,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:02,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:02,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:02,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:02,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:02,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:02,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:02,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:02,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:02,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:02,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:03,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:03,146 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:03,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:03,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1169857339, now seen corresponding path program 5 times [2021-06-17 14:13:03,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:03,146 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069891080] [2021-06-17 14:13:03,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:03,611 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:03,611 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069891080] [2021-06-17 14:13:03,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069891080] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:03,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126438774] [2021-06-17 14:13:03,612 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:03,642 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-17 14:13:03,642 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:03,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 40 conjunts are in the unsatisfiable core [2021-06-17 14:13:03,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:03,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:03,950 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:03,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2021-06-17 14:13:03,952 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:13:03,955 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:03,956 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:13:03,957 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:3 [2021-06-17 14:13:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:03,979 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126438774] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:03,979 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:03,979 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 26 [2021-06-17 14:13:03,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305125775] [2021-06-17 14:13:03,980 INFO L462 AbstractCegarLoop]: Interpolant automaton has 26 states [2021-06-17 14:13:03,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:03,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-06-17 14:13:03,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=569, Unknown=0, NotChecked=0, Total=650 [2021-06-17 14:13:03,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:03,981 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:03,982 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 26 states, 26 states have (on average 2.3461538461538463) internal successors, (61), 26 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:13:03,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:03,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:03,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:03,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:03,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:03,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:03,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:03,982 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:06,488 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2021-06-17 14:13:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:06,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-06-17 14:13:06,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-17 14:13:06,765 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:06,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:06,765 INFO L82 PathProgramCache]: Analyzing trace with hash 550306547, now seen corresponding path program 1 times [2021-06-17 14:13:06,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:06,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405441732] [2021-06-17 14:13:06,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:06,795 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-06-17 14:13:06,796 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:06,796 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405441732] [2021-06-17 14:13:06,796 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405441732] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 14:13:06,796 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 14:13:06,796 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 14:13:06,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145388350] [2021-06-17 14:13:06,796 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 14:13:06,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:06,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 14:13:06,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-17 14:13:06,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:06,797 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:06,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:13:06,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:06,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:06,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:06,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:06,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:06,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:06,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:06,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-06-17 14:13:06,797 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:07,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:07,238 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-17 14:13:07,239 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:07,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:07,239 INFO L82 PathProgramCache]: Analyzing trace with hash 412830381, now seen corresponding path program 6 times [2021-06-17 14:13:07,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:07,239 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841507208] [2021-06-17 14:13:07,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:07,799 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-17 14:13:07,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:07,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841507208] [2021-06-17 14:13:07,799 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841507208] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:07,799 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1429880216] [2021-06-17 14:13:07,799 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 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:07,835 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-06-17 14:13:07,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:07,836 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 69 conjunts are in the unsatisfiable core [2021-06-17 14:13:07,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:08,585 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-06-17 14:13:09,111 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-06-17 14:13:09,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:09,920 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:09,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 33 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 49 [2021-06-17 14:13:09,933 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 3 xjuncts. [2021-06-17 14:13:09,953 INFO L628 ElimStorePlain]: treesize reduction 4, result has 88.6 percent of original size [2021-06-17 14:13:09,985 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-06-17 14:13:09,985 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:73, output treesize:26 [2021-06-17 14:13:10,227 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:10,228 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1429880216] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:10,228 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:10,228 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 24] total 38 [2021-06-17 14:13:10,228 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585897544] [2021-06-17 14:13:10,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-17 14:13:10,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:10,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-17 14:13:10,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=1214, Unknown=0, NotChecked=0, Total=1406 [2021-06-17 14:13:10,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:10,230 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:10,230 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 38 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) [2021-06-17 14:13:10,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:10,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:10,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:10,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:10,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:10,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:10,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:10,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:10,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:10,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:10,633 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 39 [2021-06-17 14:13:11,831 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 41 [2021-06-17 14:13:13,348 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-06-17 14:13:14,119 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2021-06-17 14:13:15,220 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-06-17 14:13:16,024 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2021-06-17 14:13:16,329 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2021-06-17 14:13:16,672 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2021-06-17 14:13:16,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:16,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:16,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:16,926 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:16,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:16,927 INFO L82 PathProgramCache]: Analyzing trace with hash 2071869881, now seen corresponding path program 7 times [2021-06-17 14:13:16,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:16,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928873318] [2021-06-17 14:13:16,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:16,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 94 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-06-17 14:13:17,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:17,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928873318] [2021-06-17 14:13:17,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928873318] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:17,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866540884] [2021-06-17 14:13:17,425 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:17,474 WARN L261 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 80 conjunts are in the unsatisfiable core [2021-06-17 14:13:17,487 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:17,865 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-06-17 14:13:18,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:18,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:18,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:18,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:18,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:18,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:18,529 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:18,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:18,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 36 disjoint index pairs (out of 55 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 25 [2021-06-17 14:13:18,532 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:13:18,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:18,537 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:13:18,537 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:69, output treesize:3 [2021-06-17 14:13:18,561 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:18,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866540884] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:18,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:18,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 24] total 38 [2021-06-17 14:13:18,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462838426] [2021-06-17 14:13:18,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 38 states [2021-06-17 14:13:18,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:18,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-06-17 14:13:18,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=145, Invalid=1261, Unknown=0, NotChecked=0, Total=1406 [2021-06-17 14:13:18,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:18,563 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:18,563 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:13:18,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:18,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:18,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:18,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:18,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:18,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:18,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:18,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:18,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:18,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:18,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:19,442 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2021-06-17 14:13:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:24,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:24,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:25,061 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-06-17 14:13:25,061 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:25,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:25,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1878010899, now seen corresponding path program 8 times [2021-06-17 14:13:25,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:25,061 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324126900] [2021-06-17 14:13:25,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:25,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:25,139 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 17 proven. 52 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-06-17 14:13:25,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:25,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324126900] [2021-06-17 14:13:25,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324126900] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:25,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726452856] [2021-06-17 14:13:25,139 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:25,195 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 14:13:25,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:25,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-17 14:13:25,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:25,368 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 28 proven. 33 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-06-17 14:13:25,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726452856] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:25,369 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:25,369 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 16 [2021-06-17 14:13:25,369 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241680909] [2021-06-17 14:13:25,369 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-06-17 14:13:25,369 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:25,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-06-17 14:13:25,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-06-17 14:13:25,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:25,370 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:25,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 2.8125) internal successors, (45), 16 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:25,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:25,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:25,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:25,941 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-06-17 14:13:25,941 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:25,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:25,941 INFO L82 PathProgramCache]: Analyzing trace with hash 848638449, now seen corresponding path program 9 times [2021-06-17 14:13:25,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:25,941 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584512189] [2021-06-17 14:13:25,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:26,465 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 1 proven. 133 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-06-17 14:13:26,465 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:26,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584512189] [2021-06-17 14:13:26,465 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584512189] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:26,465 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617733459] [2021-06-17 14:13:26,465 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:26,512 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-06-17 14:13:26,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:26,514 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 103 conjunts are in the unsatisfiable core [2021-06-17 14:13:26,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:27,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,776 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:27,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,780 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:27,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:27,790 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 14:13:27,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 55 disjoint index pairs (out of 91 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 29 [2021-06-17 14:13:27,793 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 14:13:27,800 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:27,801 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 14:13:27,801 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:94, output treesize:13 [2021-06-17 14:13:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 14:13:27,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617733459] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:27,866 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:27,866 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 31] total 47 [2021-06-17 14:13:27,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963002746] [2021-06-17 14:13:27,868 INFO L462 AbstractCegarLoop]: Interpolant automaton has 47 states [2021-06-17 14:13:27,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:27,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-06-17 14:13:27,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=1939, Unknown=0, NotChecked=0, Total=2162 [2021-06-17 14:13:27,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:27,869 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:27,870 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 47 states, 47 states have (on average 2.0851063829787235) internal successors, (98), 47 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:13:27,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:27,871 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-06-17 14:13:34,215 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-06-17 14:13:34,215 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:34,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:34,216 INFO L82 PathProgramCache]: Analyzing trace with hash 441701447, now seen corresponding path program 10 times [2021-06-17 14:13:34,216 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:34,216 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45128249] [2021-06-17 14:13:34,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:34,377 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 16 proven. 105 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2021-06-17 14:13:34,377 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:34,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45128249] [2021-06-17 14:13:34,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45128249] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:34,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432627662] [2021-06-17 14:13:34,377 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 14:13:34,417 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 14:13:34,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:34,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 28 conjunts are in the unsatisfiable core [2021-06-17 14:13:34,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:34,653 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 16 proven. 97 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-06-17 14:13:34,653 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432627662] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:34,653 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 14:13:34,653 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 17 [2021-06-17 14:13:34,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088505552] [2021-06-17 14:13:34,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-06-17 14:13:34,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 14:13:34,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-06-17 14:13:34,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-06-17 14:13:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:34,654 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 14:13:34,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 2.9411764705882355) internal successors, (50), 17 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2021-06-17 14:13:34,655 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-06-17 14:13:35,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-06-17 14:13:35,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-06-17 14:13:35,486 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 14:13:35,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 14:13:35,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1038198057, now seen corresponding path program 11 times [2021-06-17 14:13:35,487 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 14:13:35,487 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68661571] [2021-06-17 14:13:35,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 14:13:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 14:13:35,823 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 17 [2021-06-17 14:13:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 4 proven. 178 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-06-17 14:13:36,409 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 14:13:36,409 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68661571] [2021-06-17 14:13:36,410 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68661571] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 14:13:36,410 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886691458] [2021-06-17 14:13:36,410 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 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 [2021-06-17 14:13:36,488 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-06-17 14:13:36,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 14:13:36,490 WARN L261 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 111 conjunts are in the unsatisfiable core [2021-06-17 14:13:36,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 14:13:39,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:39,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 14:13:40,233 WARN L205 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2021-06-17 14:13:40,234 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 14:13:40,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 17 select indices, 17 select index equivalence classes, 54 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 82 case distinctions, treesize of input 97 treesize of output 827 [2021-06-17 14:13:40,788 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 815 DAG size of output: 630 [2021-06-17 14:13:41,222 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 841 DAG size of output: 657 [2021-06-17 14:13:44,549 WARN L205 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 4903 DAG size of output: 2772 [2021-06-17 14:13:47,701 WARN L205 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 4928 DAG size of output: 2797 [2021-06-17 14:14:15,365 WARN L205 SmtUtils]: Spent 25.60 s on a formula simplification. DAG size of input: 25208 DAG size of output: 12032 [2021-06-17 14:14:42,748 WARN L205 SmtUtils]: Spent 26.55 s on a formula simplification. DAG size of input: 25230 DAG size of output: 12052 [2021-06-17 14:15:27,380 WARN L205 SmtUtils]: Spent 44.51 s on a formula simplification. DAG size of input: 11158 DAG size of output: 11641 [2021-06-17 14:16:13,212 WARN L205 SmtUtils]: Spent 45.67 s on a formula simplification. DAG size of input: 11142 DAG size of output: 12211 [2021-06-17 14:16:32,832 WARN L205 SmtUtils]: Spent 19.49 s on a formula simplification. DAG size of input: 11136 DAG size of output: 11136 [2021-06-17 14:17:08,266 WARN L205 SmtUtils]: Spent 35.34 s on a formula simplification. DAG size of input: 9911 DAG size of output: 9993 [2021-06-17 14:17:44,989 WARN L205 SmtUtils]: Spent 36.62 s on a formula simplification. DAG size of input: 9907 DAG size of output: 10147 [2021-06-17 14:18:21,921 WARN L205 SmtUtils]: Spent 36.80 s on a formula simplification. DAG size of input: 9902 DAG size of output: 9902 [2021-06-17 14:18:23,041 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 1850 DAG size of output: 1850 [2021-06-17 14:18:23,326 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 454 DAG size of output: 463 [2021-06-17 14:18:23,924 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 623 DAG size of output: 521 [2021-06-17 14:18:24,030 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 684 DAG size of output: 565 [2021-06-17 14:18:24,166 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 752 DAG size of output: 609 [2021-06-17 14:18:24,439 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 894 DAG size of output: 723 [2021-06-17 14:18:24,756 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 992 DAG size of output: 781 [2021-06-17 14:18:26,637 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1644 DAG size of output: 1859 [2021-06-17 14:18:27,278 WARN L205 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 1503 DAG size of output: 1503 [2021-06-17 14:18:27,821 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 598 DAG size of output: 499 [2021-06-17 14:18:28,019 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 688 DAG size of output: 559 [2021-06-17 14:18:28,479 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 1303 DAG size of output: 1303 [2021-06-17 14:18:29,180 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 887 DAG size of output: 763 [2021-06-17 14:18:29,911 WARN L205 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 1122 DAG size of output: 1192 [2021-06-17 14:18:30,948 WARN L205 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 2023 DAG size of output: 1600 [2021-06-17 14:18:32,044 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 2597 DAG size of output: 2027 [2021-06-17 14:18:33,645 WARN L205 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 3094 DAG size of output: 2397 [2021-06-17 14:18:36,452 WARN L205 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 3747 DAG size of output: 2946 [2021-06-17 14:18:40,187 WARN L205 SmtUtils]: Spent 3.72 s on a formula simplification. DAG size of input: 4383 DAG size of output: 3398 [2021-06-17 14:18:42,814 WARN L205 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 1838 DAG size of output: 1949 [2021-06-17 14:18:43,724 WARN L205 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 1772 DAG size of output: 1772 [2021-06-17 14:18:45,187 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 1543 DAG size of output: 1609 [2021-06-17 14:18:45,907 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 840 DAG size of output: 694 [2021-06-17 14:18:46,160 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 1048 DAG size of output: 886 [2021-06-17 14:18:46,466 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 1288 DAG size of output: 1093 [2021-06-17 14:18:46,576 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 374 DAG size of output: 387 [2021-06-17 14:18:46,988 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 715 DAG size of output: 547 [2021-06-17 14:18:49,753 WARN L205 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 4543 DAG size of output: 3336 [2021-06-17 14:18:50,026 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 379 DAG size of output: 397 [2021-06-17 14:18:50,214 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 689 DAG size of output: 457 [2021-06-17 14:18:50,424 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 748 DAG size of output: 494 [2021-06-17 14:18:50,642 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 817 DAG size of output: 537 [2021-06-17 14:18:53,828 WARN L205 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 5089 DAG size of output: 3642 [2021-06-17 14:18:58,685 WARN L205 SmtUtils]: Spent 4.83 s on a formula simplification. DAG size of input: 5880 DAG size of output: 4259 [2021-06-17 14:18:59,570 WARN L205 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 1194 DAG size of output: 1355 [2021-06-17 14:19:00,077 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 1002 DAG size of output: 1088 [2021-06-17 14:19:00,396 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 527 DAG size of output: 518 [2021-06-17 14:19:01,271 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 1737 DAG size of output: 1558 [2021-06-17 14:19:02,431 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 2404 DAG size of output: 2088 [2021-06-17 14:19:03,023 WARN L205 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 1101 DAG size of output: 1147 [2021-06-17 14:19:04,103 WARN L205 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 2265 DAG size of output: 1782 [2021-06-17 14:19:04,930 WARN L205 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 1295 DAG size of output: 1366 [2021-06-17 14:19:06,244 WARN L205 SmtUtils]: Spent 877.00 ms on a formula simplification. DAG size of input: 2670 DAG size of output: 1977 [2021-06-17 14:19:06,656 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 793 DAG size of output: 815 [2021-06-17 14:19:06,937 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 741 DAG size of output: 804 [2021-06-17 14:19:07,141 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 604 DAG size of output: 627 [2021-06-17 14:19:07,289 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 577 DAG size of output: 639 [2021-06-17 14:19:07,715 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 1146 DAG size of output: 942 [2021-06-17 14:19:08,078 WARN L205 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 1476 DAG size of output: 1264 [2021-06-17 14:19:08,714 WARN L205 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 1911 DAG size of output: 1689 [2021-06-17 14:19:09,683 WARN L205 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 2299 DAG size of output: 2063 [2021-06-17 14:19:09,976 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 673 DAG size of output: 699 [2021-06-17 14:19:10,220 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 669 DAG size of output: 711 [2021-06-17 14:19:10,873 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 915 DAG size of output: 818 [2021-06-17 14:19:11,313 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 1267 DAG size of output: 1130 [2021-06-17 14:19:11,711 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 1709 DAG size of output: 1545 [2021-06-17 14:19:12,352 WARN L205 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 2113 DAG size of output: 1929 [2021-06-17 14:19:12,604 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 727 DAG size of output: 761 [2021-06-17 14:19:12,935 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 530 DAG size of output: 449 [2021-06-17 14:19:13,204 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 1265 DAG size of output: 1034 [2021-06-17 14:19:13,508 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 731 DAG size of output: 768 [2021-06-17 14:19:13,764 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 1065 DAG size of output: 818 [2021-06-17 14:19:14,554 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 870 DAG size of output: 588 [2021-06-17 14:19:15,178 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 1000 DAG size of output: 700 [2021-06-17 14:19:15,563 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 1185 DAG size of output: 1185 [2021-06-17 14:19:16,560 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 985 DAG size of output: 1154 [2021-06-17 14:19:17,304 WARN L205 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 1733 DAG size of output: 1376 [2021-06-17 14:19:18,119 WARN L205 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 2246 DAG size of output: 1757 [2021-06-17 14:19:18,674 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 1355 DAG size of output: 1355 [2021-06-17 14:19:19,242 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 447 DAG size of output: 404 [2021-06-17 14:19:19,469 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 568 DAG size of output: 503 [2021-06-17 14:19:19,729 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 633 DAG size of output: 552 [2021-06-17 14:19:20,632 WARN L205 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 1194 DAG size of output: 1212 [2021-06-17 14:19:21,225 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 742 [2021-06-17 14:19:21,441 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 1124 DAG size of output: 885 [2021-06-17 14:19:23,092 WARN L205 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 3141 DAG size of output: 2326 [2021-06-17 14:19:24,961 WARN L205 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 3540 DAG size of output: 2653 [2021-06-17 14:19:26,683 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 1381 DAG size of output: 1418 [2021-06-17 14:19:27,308 WARN L205 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 1367 DAG size of output: 1367 [2021-06-17 14:19:27,712 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 1077 DAG size of output: 1077 [2021-06-17 14:19:28,014 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 946 DAG size of output: 946 [2021-06-17 14:19:28,518 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 764 DAG size of output: 764 [2021-06-17 14:19:29,062 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 919 DAG size of output: 764 [2021-06-17 14:19:29,210 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 601 DAG size of output: 601 [2021-06-17 14:19:29,825 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 912 DAG size of output: 665 [2021-06-17 14:19:30,256 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 1181 DAG size of output: 872 [2021-06-17 14:19:30,811 WARN L205 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 1878 DAG size of output: 1345 [2021-06-17 14:19:31,608 WARN L205 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 2211 DAG size of output: 1612 [2021-06-17 14:19:32,760 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 2423 DAG size of output: 1764 [2021-06-17 14:19:32,937 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 384 DAG size of output: 397 [2021-06-17 14:19:33,507 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 808 DAG size of output: 543 [2021-06-17 14:19:33,666 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 853 DAG size of output: 561 [2021-06-17 14:19:35,519 WARN L205 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 3156 DAG size of output: 2208 [2021-06-17 14:19:38,615 WARN L205 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 3573 DAG size of output: 2611 [2021-06-17 14:20:43,976 WARN L205 SmtUtils]: Spent 1.09 m on a formula simplification. DAG size of input: 31705 DAG size of output: 24019 [2021-06-17 14:22:13,492 WARN L205 SmtUtils]: Spent 1.49 m on a formula simplification. DAG size of input: 35985 DAG size of output: 27854 [2021-06-17 14:24:09,898 WARN L205 SmtUtils]: Spent 1.94 m on a formula simplification. DAG size of input: 40914 DAG size of output: 31950 [2021-06-17 14:24:12,332 WARN L205 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 1742 DAG size of output: 1777 [2021-06-17 14:24:14,516 WARN L205 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 1738 DAG size of output: 1937 [2021-06-17 14:24:16,247 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 1507 DAG size of output: 1548 [2021-06-17 14:24:17,957 WARN L205 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 1503 DAG size of output: 1503 [2021-06-17 14:24:19,440 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 1497 DAG size of output: 1639 [2021-06-17 14:24:20,098 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 428 DAG size of output: 446 [2021-06-17 14:24:20,360 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 873 DAG size of output: 608 [2021-06-17 14:24:22,178 WARN L205 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 3242 DAG size of output: 2491 [2021-06-17 14:24:25,049 WARN L205 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 3922 DAG size of output: 3004 [2021-06-17 14:24:29,121 WARN L205 SmtUtils]: Spent 4.05 s on a formula simplification. DAG size of input: 4596 DAG size of output: 3606 [2021-06-17 14:24:34,942 WARN L205 SmtUtils]: Spent 5.80 s on a formula simplification. DAG size of input: 5013 DAG size of output: 4007 [2021-06-17 14:24:42,719 WARN L205 SmtUtils]: Spent 7.75 s on a formula simplification. DAG size of input: 5755 DAG size of output: 4595 [2021-06-17 14:27:01,474 WARN L205 SmtUtils]: Spent 2.31 m on a formula simplification. DAG size of input: 45288 DAG size of output: 35161 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown