/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-NewStatesSleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-98196c323137eee61a7c1131837b356358d783d4-98196c3 [2021-06-17 01:00:32,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-17 01:00:32,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-17 01:00:32,278 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-17 01:00:32,279 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-17 01:00:32,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-17 01:00:32,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-17 01:00:32,287 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-17 01:00:32,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-17 01:00:32,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-17 01:00:32,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-17 01:00:32,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-17 01:00:32,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-17 01:00:32,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-17 01:00:32,297 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-17 01:00:32,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-17 01:00:32,300 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-17 01:00:32,301 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-17 01:00:32,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-17 01:00:32,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-17 01:00:32,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-17 01:00:32,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-17 01:00:32,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-17 01:00:32,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-17 01:00:32,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-17 01:00:32,317 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-17 01:00:32,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-17 01:00:32,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-17 01:00:32,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-17 01:00:32,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-17 01:00:32,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-17 01:00:32,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-17 01:00:32,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-17 01:00:32,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-17 01:00:32,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-17 01:00:32,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-17 01:00:32,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-17 01:00:32,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-17 01:00:32,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-17 01:00:32,323 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-17 01:00:32,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-17 01:00:32,325 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-NewStatesSleep-NoLbe-Random42.epf [2021-06-17 01:00:32,355 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-17 01:00:32,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-17 01:00:32,356 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-17 01:00:32,356 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-17 01:00:32,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-17 01:00:32,359 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-17 01:00:32,359 INFO L138 SettingsManager]: * Use SBE=true [2021-06-17 01:00:32,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-17 01:00:32,360 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-17 01:00:32,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-17 01:00:32,361 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-17 01:00:32,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-17 01:00:32,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-17 01:00:32,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-17 01:00:32,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-17 01:00:32,361 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-17 01:00:32,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-17 01:00:32,361 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-17 01:00:32,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-17 01:00:32,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-17 01:00:32,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-17 01:00:32,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-17 01:00:32,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-17 01:00:32,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-17 01:00:32,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-17 01:00:32,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-17 01:00:32,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-17 01:00:32,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-17 01:00:32,363 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-17 01:00:32,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-17 01:00:32,363 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-17 01:00:32,363 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-17 01:00:32,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-17 01:00:32,364 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-17 01:00:32,364 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-17 01:00:32,364 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-17 01:00:32,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-17 01:00:32,677 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-17 01:00:32,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-17 01:00:32,680 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-17 01:00:32,681 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-17 01:00:32,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl [2021-06-17 01:00:32,682 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl' [2021-06-17 01:00:32,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-17 01:00:32,712 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-17 01:00:32,713 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-17 01:00:32,713 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-17 01:00:32,713 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-17 01:00:32,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:00:32" (1/1) ... [2021-06-17 01:00:32,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:00:32" (1/1) ... [2021-06-17 01:00:32,755 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-17 01:00:32,756 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-17 01:00:32,756 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-17 01:00:32,756 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-17 01:00:32,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:00:32" (1/1) ... [2021-06-17 01:00:32,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:00:32" (1/1) ... [2021-06-17 01:00:32,764 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:00:32" (1/1) ... [2021-06-17 01:00:32,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:00:32" (1/1) ... [2021-06-17 01:00:32,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:00:32" (1/1) ... [2021-06-17 01:00:32,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:00:32" (1/1) ... [2021-06-17 01:00:32,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:00:32" (1/1) ... [2021-06-17 01:00:32,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-17 01:00:32,772 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-17 01:00:32,772 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-17 01:00:32,772 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-17 01:00:32,774 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:00:32" (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 01:00:32,828 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-17 01:00:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-17 01:00:32,828 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-17 01:00:32,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-17 01:00:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-17 01:00:32,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-17 01:00:32,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-17 01:00:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-17 01:00:32,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-17 01:00:32,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-17 01:00:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-17 01:00:32,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-17 01:00:32,830 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 01:00:33,044 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-17 01:00:33,044 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-17 01:00:33,045 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 01:00:33 BoogieIcfgContainer [2021-06-17 01:00:33,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-17 01:00:33,046 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-17 01:00:33,046 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-17 01:00:33,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-17 01:00:33,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 17.06 01:00:32" (1/2) ... [2021-06-17 01:00:33,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d9bc6ab and model type sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.06 01:00:33, skipping insertion in model container [2021-06-17 01:00:33,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.06 01:00:33" (2/2) ... [2021-06-17 01:00:33,050 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array-hom.wvr.bpl [2021-06-17 01:00:33,053 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-17 01:00:33,053 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-17 01:00:33,053 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-17 01:00:33,054 INFO L470 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-17 01:00:33,093 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-06-17 01:00:33,111 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 01:00:33,163 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-17 01:00:33,164 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-17 01:00:33,164 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-17 01:00:33,164 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-17 01:00:33,164 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-17 01:00:33,164 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-17 01:00:33,164 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-17 01:00:33,164 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-17 01:00:33,201 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:00:33,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:00:33,205 INFO L82 PathProgramCache]: Analyzing trace with hash -2118768058, now seen corresponding path program 1 times [2021-06-17 01:00:33,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:00:33,210 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754215073] [2021-06-17 01:00:33,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:00:33,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:00:33,392 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 01:00:33,392 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:00:33,392 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754215073] [2021-06-17 01:00:33,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754215073] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 01:00:33,393 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 01:00:33,393 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 01:00:33,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188854884] [2021-06-17 01:00:33,397 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-06-17 01:00:33,397 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:00:33,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-06-17 01:00:33,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-06-17 01:00:33,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:33,413 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:00:33,416 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 01:00:33,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:33,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:33,483 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-17 01:00:33,483 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:00:33,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:00:33,485 INFO L82 PathProgramCache]: Analyzing trace with hash 252859052, now seen corresponding path program 1 times [2021-06-17 01:00:33,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:00:33,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264003245] [2021-06-17 01:00:33,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:00:33,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:00:33,793 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 01:00:33,793 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:00:33,793 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264003245] [2021-06-17 01:00:33,794 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264003245] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:33,794 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257856446] [2021-06-17 01:00:33,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:00:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:00:33,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-17 01:00:33,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:00:34,069 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 01:00:34,075 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 01:00:34,078 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 01:00:34,084 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:00:34,088 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 01:00:34,088 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:20, output treesize:7 [2021-06-17 01:00:34,130 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 01:00:34,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257856446] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:34,131 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:00:34,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-06-17 01:00:34,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830045537] [2021-06-17 01:00:34,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 01:00:34,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:00:34,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 01:00:34,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-17 01:00:34,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:34,137 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:00:34,137 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 01:00:34,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:34,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:34,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:34,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:34,517 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:00:34,517 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:00:34,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:00:34,518 INFO L82 PathProgramCache]: Analyzing trace with hash -2001790006, now seen corresponding path program 1 times [2021-06-17 01:00:34,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:00:34,518 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661375111] [2021-06-17 01:00:34,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:00:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:00:34,571 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 01:00:34,571 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:00:34,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661375111] [2021-06-17 01:00:34,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661375111] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:34,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661106458] [2021-06-17 01:00:34,571 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 01:00:34,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:00:34,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 5 conjunts are in the unsatisfiable core [2021-06-17 01:00:34,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:00:34,710 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 01:00:34,710 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661106458] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:34,710 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:00:34,711 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2021-06-17 01:00:34,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939352284] [2021-06-17 01:00:34,711 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-17 01:00:34,711 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:00:34,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-17 01:00:34,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-06-17 01:00:34,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:34,712 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:00:34,712 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 01:00:34,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:34,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:34,712 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:34,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:34,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:34,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:00:35,001 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:00:35,002 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:00:35,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:00:35,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1553559818, now seen corresponding path program 2 times [2021-06-17 01:00:35,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:00:35,003 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427104927] [2021-06-17 01:00:35,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:00:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:00:35,068 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 01:00:35,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:00:35,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427104927] [2021-06-17 01:00:35,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427104927] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:35,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [269059019] [2021-06-17 01:00:35,068 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 01:00:35,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 01:00:35,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:00:35,111 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-06-17 01:00:35,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:00:35,228 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 01:00:35,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [269059019] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:35,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:00:35,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-06-17 01:00:35,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253355569] [2021-06-17 01:00:35,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 01:00:35,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:00:35,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 01:00:35,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-17 01:00:35,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:35,230 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:00:35,230 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 01:00:35,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:35,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:35,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-06-17 01:00:35,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:35,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:35,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:00:35,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:00:35,642 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:00:35,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:00:35,643 INFO L82 PathProgramCache]: Analyzing trace with hash -889854684, now seen corresponding path program 2 times [2021-06-17 01:00:35,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:00:35,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545641855] [2021-06-17 01:00:35,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:00:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:00:35,992 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 01:00:35,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:00:35,993 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545641855] [2021-06-17 01:00:35,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545641855] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:35,995 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956245630] [2021-06-17 01:00:35,995 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 01:00:36,032 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 01:00:36,033 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:00:36,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 26 conjunts are in the unsatisfiable core [2021-06-17 01:00:36,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:00:36,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:00:36,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 01:00:36,268 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 20 treesize of output 12 [2021-06-17 01:00:36,271 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 01:00:36,276 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:00:36,278 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 01:00:36,278 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:26, output treesize:5 [2021-06-17 01:00:36,304 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 01:00:36,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956245630] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:36,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:00:36,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 18 [2021-06-17 01:00:36,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685843269] [2021-06-17 01:00:36,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-06-17 01:00:36,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:00:36,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-06-17 01:00:36,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-06-17 01:00:36,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:36,306 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:00:36,307 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 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 01:00:36,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:36,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:36,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:36,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:00:36,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:36,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:00:36,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 01:00:37,180 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:00:37,181 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:00:37,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:00:37,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1377679998, now seen corresponding path program 3 times [2021-06-17 01:00:37,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:00:37,182 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572936566] [2021-06-17 01:00:37,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:00:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:00:37,235 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 01:00:37,236 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:00:37,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572936566] [2021-06-17 01:00:37,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572936566] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:37,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551041482] [2021-06-17 01:00:37,236 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 01:00:37,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-06-17 01:00:37,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:00:37,294 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 8 conjunts are in the unsatisfiable core [2021-06-17 01:00:37,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:00:37,378 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 01:00:37,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551041482] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:37,379 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:00:37,379 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2021-06-17 01:00:37,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930208270] [2021-06-17 01:00:37,380 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-17 01:00:37,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:00:37,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-17 01:00:37,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-06-17 01:00:37,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:37,381 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:00:37,382 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 01:00:37,382 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:37,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:37,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:37,383 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:00:37,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 01:00:37,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:00:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:00:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 01:00:37,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:00:37,833 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:00:37,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:00:37,833 INFO L82 PathProgramCache]: Analyzing trace with hash -312771684, now seen corresponding path program 4 times [2021-06-17 01:00:37,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:00:37,834 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467623214] [2021-06-17 01:00:37,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:00:37,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:00:38,161 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 01:00:38,161 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:00:38,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467623214] [2021-06-17 01:00:38,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467623214] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:38,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [290827718] [2021-06-17 01:00:38,161 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 01:00:38,199 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-06-17 01:00:38,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:00:38,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 34 conjunts are in the unsatisfiable core [2021-06-17 01:00:38,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:00:54,065 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2021-06-17 01:00:56,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:00:56,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:00:56,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:00:56,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:00:56,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:00:57,138 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 10 [2021-06-17 01:00:57,139 INFO L354 Elim1Store]: treesize reduction 75, result has 11.8 percent of original size [2021-06-17 01:00:57,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 8 new quantified variables, introduced 10 case distinctions, treesize of input 105 treesize of output 70 [2021-06-17 01:00:57,143 INFO L550 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: and 1 xjuncts. [2021-06-17 01:00:57,214 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:00:57,216 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-06-17 01:00:57,216 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:111, output treesize:8 [2021-06-17 01:00:57,306 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 01:00:57,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [290827718] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:00:57,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:00:57,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 22 [2021-06-17 01:00:57,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450346143] [2021-06-17 01:00:57,307 INFO L462 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-06-17 01:00:57,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:00:57,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-06-17 01:00:57,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=379, Unknown=5, NotChecked=0, Total=462 [2021-06-17 01:00:57,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:57,307 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:00:57,308 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 2.3636363636363638) internal successors, (52), 22 states have internal predecessors, (52), 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 01:00:57,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:00:57,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:57,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:00:57,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:00:57,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:00:57,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 01:00:57,308 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:00:57,992 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 28 [2021-06-17 01:00:58,382 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 28 [2021-06-17 01:00:58,855 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 30 [2021-06-17 01:01:17,188 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 29 [2021-06-17 01:01:23,949 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-06-17 01:01:46,986 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 31 [2021-06-17 01:01:58,633 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2021-06-17 01:02:07,991 WARN L205 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2021-06-17 01:02:19,517 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2021-06-17 01:02:25,074 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2021-06-17 01:03:48,646 WARN L205 SmtUtils]: Spent 4.33 s on a formula simplification that was a NOOP. DAG size: 49 [2021-06-17 01:04:20,595 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2021-06-17 01:04:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:04:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:04:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:04:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:04:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:04:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-17 01:04:20,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:04:20,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:04:20,815 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:04:20,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:04:20,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1650387436, now seen corresponding path program 5 times [2021-06-17 01:04:20,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:04:20,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720021648] [2021-06-17 01:04:20,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:04:20,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:04:21,254 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-06-17 01:04:21,537 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-06-17 01:04:21,960 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 24 [2021-06-17 01:04:22,377 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 34 [2021-06-17 01:04:22,734 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2021-06-17 01:04:23,079 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2021-06-17 01:04:23,415 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 01:04:23,415 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:04:23,415 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720021648] [2021-06-17 01:04:23,416 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720021648] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:04:23,416 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052184974] [2021-06-17 01:04:23,416 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 01:04:23,446 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-06-17 01:04:23,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:04:23,447 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2021-06-17 01:04:23,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:04:25,355 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2021-06-17 01:04:25,651 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-06-17 01:04:25,976 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-06-17 01:04:26,676 INFO L354 Elim1Store]: treesize reduction 78, result has 3.7 percent of original size [2021-06-17 01:04:26,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 108 treesize of output 71 [2021-06-17 01:04:26,693 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 01:04:26,748 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:04:26,756 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 01:04:26,756 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:108, output treesize:5 [2021-06-17 01:04:26,856 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 01:04:26,857 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052184974] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:04:26,857 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:04:26,857 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 16] total 28 [2021-06-17 01:04:26,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324267905] [2021-06-17 01:04:26,857 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-17 01:04:26,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:04:26,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-17 01:04:26,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2021-06-17 01:04:26,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:04:26,858 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:04:26,859 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.1785714285714284) internal successors, (61), 28 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 01:04:26,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:04:26,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:04:26,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:04:26,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:04:26,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:04:26,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-06-17 01:04:26,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:04:26,859 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:04:27,372 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 17 [2021-06-17 01:04:27,701 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 19 [2021-06-17 01:04:28,257 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2021-06-17 01:04:28,816 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2021-06-17 01:04:29,269 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2021-06-17 01:04:30,125 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2021-06-17 01:04:30,637 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 31 [2021-06-17 01:04:31,772 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 32 [2021-06-17 01:04:32,406 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-06-17 01:04:33,021 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2021-06-17 01:04:33,602 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 33 [2021-06-17 01:04:34,181 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2021-06-17 01:04:34,924 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 37 [2021-06-17 01:04:36,327 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2021-06-17 01:04:37,005 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2021-06-17 01:04:37,689 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2021-06-17 01:04:38,245 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-06-17 01:04:38,688 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2021-06-17 01:04:39,464 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2021-06-17 01:04:40,350 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 36 [2021-06-17 01:04:40,970 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2021-06-17 01:04:41,643 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2021-06-17 01:04:42,323 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 43 [2021-06-17 01:04:42,909 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2021-06-17 01:04:43,522 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2021-06-17 01:04:44,404 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2021-06-17 01:04:44,910 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2021-06-17 01:04:45,417 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2021-06-17 01:04:45,632 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-06-17 01:04:46,148 WARN L205 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2021-06-17 01:04:46,666 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2021-06-17 01:04:48,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:04:48,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:04:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 01:04:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:04:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:04:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 01:04:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:04:48,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 01:04:48,889 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-06-17 01:04:48,889 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:04:48,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:04:48,890 INFO L82 PathProgramCache]: Analyzing trace with hash 391623268, now seen corresponding path program 1 times [2021-06-17 01:04:48,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:04:48,890 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040600640] [2021-06-17 01:04:48,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:04:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:04:48,967 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-06-17 01:04:48,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:04:48,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040600640] [2021-06-17 01:04:48,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040600640] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-17 01:04:48,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-17 01:04:48,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-06-17 01:04:48,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030052769] [2021-06-17 01:04:48,968 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-06-17 01:04:48,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:04:48,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-06-17 01:04:48,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-06-17 01:04:48,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:04:48,968 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:04:48,968 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 01:04:48,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:04:48,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:04:48,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 01:04:48,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:04:48,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:04:48,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 01:04:48,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:04:48,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 01:04:48,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:04:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:04:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:04:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 01:04:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:04:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:04:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 01:04:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:04:49,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 01:04:49,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 01:04:49,141 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-17 01:04:49,141 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:04:49,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:04:49,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1640978430, now seen corresponding path program 6 times [2021-06-17 01:04:49,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:04:49,141 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223268430] [2021-06-17 01:04:49,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:04:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:04:49,512 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-06-17 01:04:49,512 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:04:49,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223268430] [2021-06-17 01:04:49,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223268430] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:04:49,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252601220] [2021-06-17 01:04:49,513 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 01:04:49,558 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-06-17 01:04:49,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:04:49,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 15 conjunts are in the unsatisfiable core [2021-06-17 01:04:49,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:04:50,064 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 5 proven. 16 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-06-17 01:04:50,064 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252601220] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:04:50,064 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:04:50,064 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 13 [2021-06-17 01:04:50,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630321953] [2021-06-17 01:04:50,065 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-17 01:04:50,065 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:04:50,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-17 01:04:50,066 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2021-06-17 01:04:50,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:04:50,066 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:04:50,066 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 01:04:50,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:04:50,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:04:50,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 01:04:50,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:04:50,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:04:50,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 01:04:50,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:04:50,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 01:04:50,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 01:04:50,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:04:51,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:04:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:04:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 01:04:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:04:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:04:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 01:04:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:04:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 01:04:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 01:04:51,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:04:52,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:04:52,040 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:04:52,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:04:52,040 INFO L82 PathProgramCache]: Analyzing trace with hash -761090528, now seen corresponding path program 7 times [2021-06-17 01:04:52,041 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:04:52,041 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365526845] [2021-06-17 01:04:52,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:04:52,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:04:52,718 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 18 [2021-06-17 01:04:53,106 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 20 [2021-06-17 01:04:53,400 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 27 [2021-06-17 01:04:53,697 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 24 [2021-06-17 01:04:54,041 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2021-06-17 01:04:54,350 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2021-06-17 01:04:54,659 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2021-06-17 01:04:55,134 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-17 01:04:55,135 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:04:55,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365526845] [2021-06-17 01:04:55,135 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365526845] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:04:55,135 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360609003] [2021-06-17 01:04:55,135 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 01:04:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:04:55,168 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 58 conjunts are in the unsatisfiable core [2021-06-17 01:04:55,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:04:57,518 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-06-17 01:04:57,825 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-06-17 01:04:58,782 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 01:04:58,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:04:58,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:04:58,793 INFO L173 IndexEqualityManager]: detected equality via solver [2021-06-17 01:04:58,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:04:58,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:04:58,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 22 [2021-06-17 01:04:58,806 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-06-17 01:04:58,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-06-17 01:04:58,852 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 01:04:58,852 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:54, output treesize:5 [2021-06-17 01:04:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-17 01:04:58,968 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360609003] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:04:58,968 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:04:58,968 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 18] total 32 [2021-06-17 01:04:58,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198195710] [2021-06-17 01:04:58,969 INFO L462 AbstractCegarLoop]: Interpolant automaton has 32 states [2021-06-17 01:04:58,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:04:58,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-06-17 01:04:58,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=858, Unknown=0, NotChecked=0, Total=992 [2021-06-17 01:04:58,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:04:58,970 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:04:58,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 32 states, 32 states have (on average 2.3125) internal successors, (74), 32 states have internal predecessors, (74), 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 01:04:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:04:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:04:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 01:04:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:04:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:04:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 01:04:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:04:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 01:04:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 01:04:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:04:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:05:00,133 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 27 [2021-06-17 01:05:00,979 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2021-06-17 01:05:01,412 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 27 [2021-06-17 01:05:01,887 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2021-06-17 01:05:02,696 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2021-06-17 01:05:03,801 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2021-06-17 01:05:04,478 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 32 [2021-06-17 01:05:05,354 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2021-06-17 01:05:05,850 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2021-06-17 01:05:06,350 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2021-06-17 01:05:07,183 WARN L205 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2021-06-17 01:05:08,678 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 39 [2021-06-17 01:05:09,543 WARN L205 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2021-06-17 01:05:10,064 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2021-06-17 01:05:10,571 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2021-06-17 01:05:11,430 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2021-06-17 01:05:12,827 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2021-06-17 01:05:13,680 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2021-06-17 01:05:14,208 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2021-06-17 01:05:14,735 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2021-06-17 01:05:15,665 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 30 [2021-06-17 01:05:16,437 WARN L205 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-06-17 01:05:16,968 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2021-06-17 01:05:17,708 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 29 [2021-06-17 01:05:18,677 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2021-06-17 01:05:19,365 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2021-06-17 01:05:20,005 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2021-06-17 01:05:20,648 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2021-06-17 01:05:21,616 WARN L205 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2021-06-17 01:05:22,375 WARN L205 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2021-06-17 01:05:24,078 WARN L205 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2021-06-17 01:05:24,794 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-06-17 01:05:25,370 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2021-06-17 01:05:25,749 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 30 [2021-06-17 01:05:25,979 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2021-06-17 01:05:26,680 WARN L205 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2021-06-17 01:05:27,381 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2021-06-17 01:05:28,663 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-06-17 01:05:30,823 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-06-17 01:05:31,576 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2021-06-17 01:05:32,097 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2021-06-17 01:05:32,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:05:32,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:05:32,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 01:05:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:05:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:05:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 01:05:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:05:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 01:05:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 01:05:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:05:32,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-06-17 01:05:32,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-17 01:05:32,675 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:05:32,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:05:32,675 INFO L82 PathProgramCache]: Analyzing trace with hash 586517814, now seen corresponding path program 8 times [2021-06-17 01:05:32,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:05:32,676 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624274875] [2021-06-17 01:05:32,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:05:32,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:05:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 9 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-06-17 01:05:33,207 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:05:33,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624274875] [2021-06-17 01:05:33,207 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624274875] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:05:33,207 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724280332] [2021-06-17 01:05:33,207 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 01:05:33,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-06-17 01:05:33,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:05:33,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 18 conjunts are in the unsatisfiable core [2021-06-17 01:05:33,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:05:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 9 proven. 42 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-06-17 01:05:33,724 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724280332] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:05:33,724 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-17 01:05:33,724 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 15 [2021-06-17 01:05:33,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184158361] [2021-06-17 01:05:33,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-17 01:05:33,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-17 01:05:33,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-17 01:05:33,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2021-06-17 01:05:33,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:05:33,725 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-17 01:05:33,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2021-06-17 01:05:33,725 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-17 01:05:37,342 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-06-17 01:05:37,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-17 01:05:37,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-17 01:05:37,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-17 01:05:37,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-17 01:05:37,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-17 01:05:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-17 01:05:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-17 01:05:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-17 01:05:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-06-17 01:05:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-17 01:05:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-06-17 01:05:37,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-06-17 01:05:37,560 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-06-17 01:05:37,561 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-17 01:05:37,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-17 01:05:37,561 INFO L82 PathProgramCache]: Analyzing trace with hash -1960882344, now seen corresponding path program 9 times [2021-06-17 01:05:37,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-17 01:05:37,562 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531330709] [2021-06-17 01:05:37,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-17 01:05:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-17 01:05:38,144 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 18 [2021-06-17 01:05:38,534 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 20 [2021-06-17 01:05:39,248 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 30 [2021-06-17 01:05:39,557 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2021-06-17 01:05:39,861 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-06-17 01:05:40,690 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 2 proven. 84 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-06-17 01:05:40,690 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-17 01:05:40,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531330709] [2021-06-17 01:05:40,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531330709] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-17 01:05:40,690 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29736238] [2021-06-17 01:05:40,690 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 01:05:40,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-06-17 01:05:40,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-06-17 01:05:40,728 WARN L261 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 76 conjunts are in the unsatisfiable core [2021-06-17 01:05:40,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-17 01:05:48,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-06-17 01:05:48,838 INFO L244 Elim1Store]: Index analysis took 463 ms [2021-06-17 01:05:52,757 WARN L205 SmtUtils]: Spent 3.92 s on a formula simplification. DAG size of input: 218 DAG size of output: 214 [2021-06-17 01:05:52,757 INFO L354 Elim1Store]: treesize reduction 8, result has 98.3 percent of original size [2021-06-17 01:05:52,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 45 disjoint index pairs (out of 91 index pairs), introduced 16 new quantified variables, introduced 46 case distinctions, treesize of input 188 treesize of output 523 [2021-06-17 01:05:53,387 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 953 DAG size of output: 749 [2021-06-17 01:05:53,731 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 978 DAG size of output: 776 [2021-06-17 01:05:58,241 WARN L205 SmtUtils]: Spent 3.89 s on a formula simplification. DAG size of input: 4409 DAG size of output: 3234 [2021-06-17 01:06:02,351 WARN L205 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 4436 DAG size of output: 3263 [2021-06-17 01:06:39,335 WARN L205 SmtUtils]: Spent 34.58 s on a formula simplification. DAG size of input: 24273 DAG size of output: 14931 [2021-06-17 01:07:15,460 WARN L205 SmtUtils]: Spent 35.87 s on a formula simplification. DAG size of input: 24289 DAG size of output: 14943 [2021-06-17 01:08:17,957 WARN L205 SmtUtils]: Spent 1.04 m on a formula simplification. DAG size of input: 13976 DAG size of output: 18120 [2021-06-17 01:08:46,624 WARN L205 SmtUtils]: Spent 28.53 s on a formula simplification. DAG size of input: 13942 DAG size of output: 13942 [2021-06-17 01:09:02,619 WARN L205 SmtUtils]: Spent 15.93 s on a formula simplification. DAG size of input: 8806 DAG size of output: 8806 [2021-06-17 01:09:25,301 WARN L205 SmtUtils]: Spent 22.63 s on a formula simplification. DAG size of input: 6502 DAG size of output: 8144 [2021-06-17 01:09:48,285 WARN L205 SmtUtils]: Spent 22.92 s on a formula simplification. DAG size of input: 6499 DAG size of output: 8277 [2021-06-17 01:09:49,566 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 654 DAG size of output: 535 [2021-06-17 01:09:50,231 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 838 DAG size of output: 694 [2021-06-17 01:09:57,198 WARN L205 SmtUtils]: Spent 6.95 s on a formula simplification. DAG size of input: 3271 DAG size of output: 4172 [2021-06-17 01:09:58,496 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 262 [2021-06-17 01:09:59,031 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 661 DAG size of output: 579 [2021-06-17 01:09:59,757 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 1288 DAG size of output: 1288 [2021-06-17 01:10:00,265 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 573 DAG size of output: 621 [2021-06-17 01:10:00,394 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 528 DAG size of output: 528 [2021-06-17 01:10:00,793 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 455 [2021-06-17 01:10:01,365 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 1090 DAG size of output: 1052 [2021-06-17 01:10:01,664 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 1366 DAG size of output: 1325 [2021-06-17 01:10:02,361 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 1647 DAG size of output: 1594 [2021-06-17 01:10:03,103 WARN L205 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 1926 DAG size of output: 1852 [2021-06-17 01:10:03,569 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 976 DAG size of output: 976 [2021-06-17 01:10:04,344 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 781 DAG size of output: 689 [2021-06-17 01:10:04,738 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 1014 DAG size of output: 921 [2021-06-17 01:10:05,274 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 1373 DAG size of output: 1237 [2021-06-17 01:10:05,651 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 454 DAG size of output: 496 [2021-06-17 01:10:05,842 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 423 DAG size of output: 489 [2021-06-17 01:10:06,568 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 954 DAG size of output: 647 [2021-06-17 01:10:06,865 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 1212 DAG size of output: 899 [2021-06-17 01:10:07,409 WARN L205 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 1502 DAG size of output: 1203 [2021-06-17 01:10:07,544 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 481 DAG size of output: 481 [2021-06-17 01:10:08,369 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 373 [2021-06-17 01:10:09,096 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 1112 DAG size of output: 1038 [2021-06-17 01:10:09,328 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 1305 DAG size of output: 1221 [2021-06-17 01:10:09,754 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 1642 DAG size of output: 1531 [2021-06-17 01:10:10,291 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 1889 DAG size of output: 1768 [2021-06-17 01:10:11,971 WARN L205 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 3967 DAG size of output: 3464 [2021-06-17 01:10:14,919 WARN L205 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 5366 DAG size of output: 4789 [2021-06-17 01:10:15,251 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 466 DAG size of output: 500 [2021-06-17 01:10:15,959 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 1180 DAG size of output: 1003 [2021-06-17 01:10:17,053 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 564 DAG size of output: 622 [2021-06-17 01:10:17,380 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 532 DAG size of output: 637 [2021-06-17 01:10:18,176 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 565 DAG size of output: 462 [2021-06-17 01:10:18,353 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 892 DAG size of output: 683 [2021-06-17 01:10:18,646 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 1019 DAG size of output: 797 [2021-06-17 01:10:19,150 WARN L205 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 1283 DAG size of output: 1031 [2021-06-17 01:10:20,094 WARN L205 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 1555 DAG size of output: 1311 [2021-06-17 01:10:20,263 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 542 DAG size of output: 542 [2021-06-17 01:10:20,811 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 475 DAG size of output: 554 [2021-06-17 01:10:21,621 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 950 DAG size of output: 792 [2021-06-17 01:10:21,933 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 1218 DAG size of output: 1051 [2021-06-17 01:10:22,497 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 1515 DAG size of output: 1302 [2021-06-17 01:10:24,060 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 621 DAG size of output: 534 [2021-06-17 01:10:24,261 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 755 DAG size of output: 665 [2021-06-17 01:10:37,092 WARN L205 SmtUtils]: Spent 12.80 s on a formula simplification. DAG size of input: 13400 DAG size of output: 11261 [2021-06-17 01:10:42,917 WARN L205 SmtUtils]: Spent 5.73 s on a formula simplification. DAG size of input: 3789 DAG size of output: 3789 [2021-06-17 01:10:49,327 WARN L205 SmtUtils]: Spent 6.39 s on a formula simplification. DAG size of input: 1845 DAG size of output: 2246 [2021-06-17 01:10:51,726 WARN L205 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 1739 DAG size of output: 1739 [2021-06-17 01:10:51,872 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 464 DAG size of output: 464 [2021-06-17 01:10:52,086 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 555 [2021-06-17 01:10:52,445 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 374 DAG size of output: 380 [2021-06-17 01:10:53,240 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 825 DAG size of output: 625 [2021-06-17 01:10:53,462 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 1002 DAG size of output: 780 [2021-06-17 01:10:53,972 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 1194 DAG size of output: 941 [2021-06-17 01:10:54,461 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 1365 DAG size of output: 1040 [2021-06-17 01:10:55,414 WARN L205 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 1560 DAG size of output: 1193 [2021-06-17 01:10:57,353 WARN L205 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 1617 DAG size of output: 1617 [2021-06-17 01:10:58,706 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1457 DAG size of output: 1457 [2021-06-17 01:10:59,657 WARN L205 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 1341 DAG size of output: 1341 [2021-06-17 01:10:59,935 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 437 [2021-06-17 01:11:00,151 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 471 [2021-06-17 01:11:00,974 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 987 DAG size of output: 729 [2021-06-17 01:11:01,256 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 1204 DAG size of output: 915 [2021-06-17 01:11:01,729 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 1399 DAG size of output: 1075 [2021-06-17 01:11:02,334 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 1195 DAG size of output: 1195 [2021-06-17 01:11:02,689 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 882 DAG size of output: 882 [2021-06-17 01:11:02,875 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 670 DAG size of output: 670 [2021-06-17 01:11:03,537 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 961 DAG size of output: 690 [2021-06-17 01:11:03,661 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 431 [2021-06-17 01:11:04,325 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 1046 DAG size of output: 763 [2021-06-17 01:11:04,602 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 1727 DAG size of output: 1206 [2021-06-17 01:11:05,421 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 973 DAG size of output: 710 [2021-06-17 01:11:06,032 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 2384 DAG size of output: 1659 [2021-06-17 01:11:06,306 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 429 DAG size of output: 437 [2021-06-17 01:11:07,292 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 1000 DAG size of output: 804 [2021-06-17 01:11:08,361 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 3186 DAG size of output: 2287 [2021-06-17 01:11:10,335 WARN L205 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 4085 DAG size of output: 2933 [2021-06-17 01:11:10,617 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 431 DAG size of output: 433 [2021-06-17 01:11:10,722 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 424 DAG size of output: 424 [2021-06-17 01:11:11,417 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 824 DAG size of output: 604 [2021-06-17 01:11:11,679 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 940 DAG size of output: 714 [2021-06-17 01:11:12,084 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 1132 DAG size of output: 888 [2021-06-17 01:11:14,746 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 4566 DAG size of output: 3305 [2021-06-17 01:11:14,876 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 455 DAG size of output: 455 [2021-06-17 01:11:15,163 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 421 DAG size of output: 458 [2021-06-17 01:11:15,364 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 416 DAG size of output: 443 [2021-06-17 01:11:16,137 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 987 DAG size of output: 771 [2021-06-17 01:11:16,426 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 1211 DAG size of output: 974 [2021-06-17 01:11:16,894 WARN L205 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 1438 DAG size of output: 1185 [2021-06-17 01:11:17,852 WARN L205 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 1639 DAG size of output: 1358 [2021-06-17 01:11:22,026 WARN L205 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 5528 DAG size of output: 4076 [2021-06-17 01:11:27,770 WARN L205 SmtUtils]: Spent 5.72 s on a formula simplification. DAG size of input: 6322 DAG size of output: 4758 [2021-06-17 01:11:37,780 WARN L205 SmtUtils]: Spent 9.98 s on a formula simplification. DAG size of input: 7476 DAG size of output: 5773 [2021-06-17 01:11:39,677 WARN L205 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 1245 DAG size of output: 1435 [2021-06-17 01:11:40,457 WARN L205 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 1236 DAG size of output: 1236 [2021-06-17 01:11:40,612 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 450 DAG size of output: 450 [2021-06-17 01:11:41,094 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 407 [2021-06-17 01:11:41,681 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 563 DAG size of output: 496 [2021-06-17 01:11:42,107 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 824 DAG size of output: 709 [2021-06-17 01:11:42,523 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 1000 DAG size of output: 870 [2021-06-17 01:11:43,087 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 1175 DAG size of output: 1014 [2021-06-17 01:11:43,533 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 1001 DAG size of output: 1001 [2021-06-17 01:11:43,826 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 468 DAG size of output: 516 [2021-06-17 01:11:44,017 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 437 DAG size of output: 490 [2021-06-17 01:11:44,942 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 797 DAG size of output: 722 [2021-06-17 01:11:45,156 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 1064 DAG size of output: 968 [2021-06-17 01:11:45,517 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 1358 DAG size of output: 1237 [2021-06-17 01:11:46,118 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 1633 DAG size of output: 1515 [2021-06-17 01:11:46,277 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 443 [2021-06-17 01:11:46,690 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 822 DAG size of output: 577 [2021-06-17 01:11:47,415 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 427 [2021-06-17 01:11:48,058 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 749 DAG size of output: 595 [2021-06-17 01:11:48,282 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 951 DAG size of output: 785 [2021-06-17 01:11:48,683 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 1229 DAG size of output: 1005 [2021-06-17 01:11:50,199 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 3313 DAG size of output: 2679 [2021-06-17 01:11:52,776 WARN L205 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 4122 DAG size of output: 3342 [2021-06-17 01:11:56,552 WARN L205 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 4735 DAG size of output: 3943 [2021-06-17 01:11:58,858 WARN L205 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 1456 DAG size of output: 1784 [2021-06-17 01:11:59,780 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 1245 DAG size of output: 1245 [2021-06-17 01:12:01,132 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 1002 DAG size of output: 1192 [2021-06-17 01:12:01,634 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 994 DAG size of output: 994 [2021-06-17 01:12:01,919 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 443 DAG size of output: 478 [2021-06-17 01:12:02,121 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 482 [2021-06-17 01:12:02,960 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 938 DAG size of output: 924 [2021-06-17 01:12:03,263 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 1235 DAG size of output: 1187 [2021-06-17 01:12:03,829 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 1555 DAG size of output: 1509 [2021-06-17 01:12:04,662 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 915 DAG size of output: 611 [2021-06-17 01:12:04,850 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 407 [2021-06-17 01:12:05,094 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 693 DAG size of output: 514 [2021-06-17 01:12:05,486 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 862 DAG size of output: 652 [2021-06-17 01:12:06,870 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 2931 DAG size of output: 2388 [2021-06-17 01:12:09,031 WARN L205 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 3398 DAG size of output: 2792 [2021-06-17 01:12:09,357 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 501 DAG size of output: 556 [2021-06-17 01:12:09,466 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 460 DAG size of output: 460 [2021-06-17 01:12:09,944 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 329 DAG size of output: 340 [2021-06-17 01:12:10,056 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 337 [2021-06-17 01:12:10,382 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 660 DAG size of output: 530 [2021-06-17 01:12:10,570 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 850 DAG size of output: 707 [2021-06-17 01:12:10,880 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 1195 DAG size of output: 971 [2021-06-17 01:12:11,591 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 1393 DAG size of output: 1134 [2021-06-17 01:12:12,323 WARN L205 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 1605 DAG size of output: 1333 [2021-06-17 01:12:15,731 WARN L205 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 4465 DAG size of output: 3670 [2021-06-17 01:12:21,481 WARN L205 SmtUtils]: Spent 5.73 s on a formula simplification. DAG size of input: 5336 DAG size of output: 4456 [2021-06-17 01:12:43,580 WARN L205 SmtUtils]: Spent 22.06 s on a formula simplification. DAG size of input: 15450 DAG size of output: 12265 [2021-06-17 01:13:36,196 WARN L205 SmtUtils]: Spent 52.52 s on a formula simplification. DAG size of input: 29101 DAG size of output: 23442 [2021-06-17 01:14:49,860 WARN L205 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 33767 DAG size of output: 27319 [2021-06-17 01:14:59,506 WARN L205 SmtUtils]: Spent 9.51 s on a formula simplification. DAG size of input: 3424 DAG size of output: 4346 Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown